Nervous system
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The nervous system is the body's main communication system and is made up of neurons that gather and transmit internal and external stimuli. It has two major parts: the central nervous system, which includes the brain and spinal cord as the main data center; and the peripheral nervous system, which senses and communicates data to the central nervous system and can be divided into the autonomic and somatic systems that regulate involuntary and voluntary actions respectively.
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Nervous System Suffixes
The document discusses the nervous system and its functions. It is divided into the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS). The nervous system coordinates the actions of the body, integrates information, and transmits signals between different parts. It consists of motor neurons, the autonomic nervous system, and more. The document also defines terms related to sensation, speech, anesthesia, hypersensitivity, and dysphasia.
HIS 120 Afferent Deprivatrion and Efferent Influence
1. The superior olivary complex receives auditory information from both ears and processes it, sending most information to the inferior colliculus.
2. The inferior colliculus further processes auditory information and integrates it with other sensory systems, then sends it to the thalamus.
3. The thalamus routes sensory information to various areas of the brain, and its response influences the efferent pathway of the olivocochlear bundle which regulates cochlear output.
Parts of the brain
The document summarizes the main parts of the brain and their functions. The frontal lobe is responsible for planning, decision making, personality, and speech. The temporal lobe handles hearing, comprehension of speech, and making sense of sounds. The parietal lobe integrates sensory information like taste, temperature, and touch. The occipital lobe processes visual information so we can understand what we see. The cerebellum controls balance and muscle coordination. The spinal cord connects the brain to the rest of the body and forms the central nervous system.
Cerebral cortex - physiology
The document summarizes key aspects of the cerebral cortex. It discusses the functional anatomy of the cerebral cortex, including its layers of neurons. It describes the relations of the cortex to the thalamus, and specific functions of motor, sensory, and association areas. Association areas integrate signals from multiple regions. Important association areas discussed include the parieto-occipitotemporal area, prefrontal area, and limbic area. The document also covers concepts such as the dominant hemisphere, functions in communication including language input and output, and thoughts, consciousness, and memory.
Lecture 8 brain structure
The document discusses the structure and function of the human brain. It begins with an overview of the evolution of the brain from the reptilian to paleomammalian to neomammalian structures. It then describes the major parts of the brain including the brainstem, cerebellum, limbic system, and cerebral cortex. Specific areas that control functions like memory, emotion, movement, and the five senses are identified. The document also discusses brain plasticity and lateralization between the left and right hemispheres.
Chapter 58 cerebral cortex, intellectual functions
The document summarizes key aspects of the cerebral cortex, its functions, and memory. It discusses that the cerebral cortex is the largest part of the nervous system but our understanding is limited. It has over 100 billion neurons organized into six layers that perform different functions like receiving sensory input and sending output signals. Specific cortical areas support motor control, sensory processing, and higher cognitive functions through association areas. Memory formation involves changing synaptic transmission through sensitization that strengthens pathways for positive memories and habituation that weakens pathways for unimportant information.
Parts of your brain
The document discusses the main parts of the brain including the forebrain, midbrain, and hindbrain. The forebrain contains the cerebrum, thalamus, and hypothalamus. The cerebrum is the largest part of the forebrain and contains the hippocampus for storing memories. It is divided into two hemispheres. The thalamus relays information and controls consciousness and pain. The hypothalamus controls pleasure, pain, and connects the brain to the endocrine system.
Parts And Functions of Human Brain
Brief information about structure and functions of parts of brain-Cerebrum, Olfactory lobes, Cerebellum, medulla olongata, pons,etc.
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Nervous System Suffixes
The document discusses the nervous system and its functions. It is divided into the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS). The nervous system coordinates the actions of the body, integrates information, and transmits signals between different parts. It consists of motor neurons, the autonomic nervous system, and more. The document also defines terms related to sensation, speech, anesthesia, hypersensitivity, and dysphasia.
HIS 120 Afferent Deprivatrion and Efferent Influence
1. The superior olivary complex receives auditory information from both ears and processes it, sending most information to the inferior colliculus.
2. The inferior colliculus further processes auditory information and integrates it with other sensory systems, then sends it to the thalamus.
3. The thalamus routes sensory information to various areas of the brain, and its response influences the efferent pathway of the olivocochlear bundle which regulates cochlear output.
Parts of the brain
The document summarizes the main parts of the brain and their functions. The frontal lobe is responsible for planning, decision making, personality, and speech. The temporal lobe handles hearing, comprehension of speech, and making sense of sounds. The parietal lobe integrates sensory information like taste, temperature, and touch. The occipital lobe processes visual information so we can understand what we see. The cerebellum controls balance and muscle coordination. The spinal cord connects the brain to the rest of the body and forms the central nervous system.
Cerebral cortex - physiology
The document summarizes key aspects of the cerebral cortex. It discusses the functional anatomy of the cerebral cortex, including its layers of neurons. It describes the relations of the cortex to the thalamus, and specific functions of motor, sensory, and association areas. Association areas integrate signals from multiple regions. Important association areas discussed include the parieto-occipitotemporal area, prefrontal area, and limbic area. The document also covers concepts such as the dominant hemisphere, functions in communication including language input and output, and thoughts, consciousness, and memory.
Lecture 8 brain structure
The document discusses the structure and function of the human brain. It begins with an overview of the evolution of the brain from the reptilian to paleomammalian to neomammalian structures. It then describes the major parts of the brain including the brainstem, cerebellum, limbic system, and cerebral cortex. Specific areas that control functions like memory, emotion, movement, and the five senses are identified. The document also discusses brain plasticity and lateralization between the left and right hemispheres.
Chapter 58 cerebral cortex, intellectual functions
The document summarizes key aspects of the cerebral cortex, its functions, and memory. It discusses that the cerebral cortex is the largest part of the nervous system but our understanding is limited. It has over 100 billion neurons organized into six layers that perform different functions like receiving sensory input and sending output signals. Specific cortical areas support motor control, sensory processing, and higher cognitive functions through association areas. Memory formation involves changing synaptic transmission through sensitization that strengthens pathways for positive memories and habituation that weakens pathways for unimportant information.
Parts of your brain
The document discusses the main parts of the brain including the forebrain, midbrain, and hindbrain. The forebrain contains the cerebrum, thalamus, and hypothalamus. The cerebrum is the largest part of the forebrain and contains the hippocampus for storing memories. It is divided into two hemispheres. The thalamus relays information and controls consciousness and pain. The hypothalamus controls pleasure, pain, and connects the brain to the endocrine system.
Parts And Functions of Human Brain
Brief information about structure and functions of parts of brain-Cerebrum, Olfactory lobes, Cerebellum, medulla olongata, pons,etc.
Cortex, limbic etc
The document discusses several topics related to the cerebral cortex and brain functions:
1. It describes the six layers of the cerebral cortex and their roles in processing sensory and motor signals.
2. It discusses some functional areas of the cortex including those involved in language, face recognition, and spatial awareness.
3. It covers topics like cerebral dominance, language areas, aphasias, memory, thought, the limbic system, hypothalamus, amygdala, reticular formation, and sleep cycles.
4. Key areas and structures mentioned include Wernicke's area, Broca's area, hippocampus, hypothalamus, amygdala, reticular formation, and their
Brain function
The document discusses brain functions and lateralization of functions between the left and right hemispheres. It covers:
1) Early studies by Gall and phrenology localized brain functions, while Flourens argued functions were distributed. Broca and Wernicke's studies of aphasia patients localized language production and comprehension areas.
2) The left hemisphere is specialized for language in most people. Damage can cause speech problems. The right hemisphere handles visuospatial tasks, and can take over some language functions after left damage.
3) Split-brain patients, whose corpus callosum is cut, have independent hand use and respond differently to each visual field, showing lateralization of functions between hemispheres.
The human brain
The human brain has three main parts - the cerebrum, cerebellum, and brain stem. The cerebrum is divided into two hemispheres and four lobes. Broca's area in the left frontal lobe controls speech production, while Wernicke's area in the left temporal lobe controls language comprehension. Damage to these areas can result in different types of aphasia. The brain is highly complex and not fully understood, controlling functions like thinking, movement, senses, and more.
Cerebral cortex
The document discusses the structure and function of the cerebral cortex. It describes the six layers of the cortex and notes that sensory input arrives in layer 4 while output signals leave through layers 5 and 6. It then discusses functional areas like association areas and specific areas for tasks like face recognition. The document also covers cerebral dominance, lesions in different hemispheres, language areas and disorders, memory classification and the role of the hippocampus in memory storage.
Mystery of human brain
The document discusses the mystery and complexity of the human brain. It notes that the human brain is the largest among animals and has three main parts: the cerebrum, which is responsible for memory and emotional responses; the cerebellum, which controls motor functions and sensory processing; and the brain stem, which controls vital functions like respiration and blood pressure. The document highlights that the brain has over 100 trillion bytes of memory capacity and 10 billion neurons, yet we still only understand a fraction of its full abilities. Maintaining a healthy brain requires a balanced lifestyle with nutrition, sleep, and continuous learning.
Functional organization of the cerebral cortex i sensory & motor cortex
The document summarizes the functional organization of the cerebral cortex. It describes that the cortex contains sensory, motor, and association areas. The sensory areas include primary somatosensory, visual, auditory, gustatory and olfactory areas which receive and process sensory information from the body and environment. The motor areas include the primary motor area and Broca's area which control voluntary movements. Association areas integrate different types of information for higher-level cognitive functions.
The human brain presentation
The document summarizes the structure and function of the human brain. It discusses that the brain is divided into two hemispheres, with each hemisphere further divided into four lobes - frontal, parietal, occipital, and temporal. The frontal lobe is involved in functions like memory, emotions, reasoning and language. Broca's area in the left frontal lobe controls speech production while Wernicke's area in the left temporal lobe is involved in language comprehension. The hemispheres have some functional differences, with the left typically dominating language and analytical functions and the right dominating more holistic processing.
Brain architecture
The document discusses the major structures of the human brain. It describes the four lobes in each hemisphere - the frontal, parietal, temporal, and occipital lobes. The cerebellum coordinates muscle movements. The occipital lobes process visual information. The temporal lobes process auditory information. The parietal lobes process sensory information. The frontal lobes are largest in humans and are involved in higher cognitive functions. Additionally, the limbic system generates instinctive emotions and the brain stem controls vital unconscious functions like breathing.
独中高中生物Chapter 13 Part 3 Peripheral nervous syste,
- The peripheral nervous system (PNS) consists of nerves and ganglia outside the brain and spinal cord that relay signals between the central nervous system and the body. The PNS includes the somatic and autonomic nervous systems.
- The somatic nervous system controls voluntary body movements via skeletal muscles. The autonomic nervous system unconsciously regulates functions of internal organs through sympathetic and parasympathetic nerves.
- Sympathetic nerves dominate the "fight or flight" response while parasympathetic nerves dominate "rest and digest".
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The document discusses the major divisions and structures of the human brain. It begins by describing the four lobes of the cerebrum - frontal, parietal, occipital, and temporal. It then provides details on the cortical regions within each lobe and their functions, such as Broca's area for speech production and Wernicke's area for language comprehension. The document also discusses investigations like the case of Phineas Gage to illustrate how injuries to specific brain regions can impact functions.
The structure and function of the brain
The document summarizes the structure and function of the major parts of the brain. It describes the cerebral cortex as having sensory, motor, and association areas. It then discusses the four main lobes of the brain - the frontal, parietal, temporal, and occipital lobes - and describes the primary and association areas within each lobe. The primary areas are responsible for basic sensory and motor functions, while the association areas integrate information for higher cognitive processes.
Brain lateralization
The document discusses brain lateralization and the critical period hypothesis. It describes how the brain is divided into left and right hemispheres that develop specialized functions. The left hemisphere is specialized for language and logical/analytical tasks while the right hemisphere is specialized for intuition, creativity, and spatial awareness. It also discusses how there is a critical period for language acquisition in childhood where language learning comes easily without teaching, and becomes more difficult after this period ends.
Language and brain
The document discusses how language is studied in the brain through neurolinguistics and psycholinguistics. Neurolinguistics explores how language processing occurs across nerves and the brain, while psycholinguistics focuses on the psychological aspects of language acquisition, storage, comprehension, and production. Researchers have attempted to localize language functions in different areas of the brain, finding that language involves both hemispheres working together, though typically the left hemisphere is dominant for language. Key language areas include Broca's and Wernicke's areas in the frontal and temporal lobes respectively.
9. cerebral cortex-08-09
The document summarizes the structure and functions of the cerebral cortex. It discusses the six layers of the cerebral cortex and how they are arranged. It also describes the four main lobes of the cerebral cortex - the frontal, parietal, temporal and occipital lobes - and some of their functions. Additionally, it covers the limbic system and its role in emotion, motivation and memory. It notes that in most individuals, the left hemisphere is dominant for language and precise motor skills.
Cerebral cortex
The cerebral cortex consists of two hemispheres covered in convoluted gyri and sulci. It is the largest part of the human brain. The hemispheres are separated by a fissure and connected by the corpus callosum. The neocortex, or association cortex, is the phylogenetically newest part responsible for higher functions like language, memory, and intelligence. It is divided into four lobes - frontal, parietal, temporal, and occipital - each with distinct functions. The left hemisphere is typically dominant for language and logical thinking.
CEREBRAL CORTEX IN HUMAN BRAIN
Different animal species have many structures in common, including a cerebellum and cortex.
The cortex is much larger in mammals than in species that evolved earlier, such as fish and amphibians.
The cross section of the human brain shows how the cerebral cortex has developed around and above more primitive brain structures. Localization—notion that different functions are located in different areas of the brainLateralization—notion that different functions are processed primarily on one side of the brain or the other
The Human Brain
The document summarizes how different areas of the brain process different types of sensory information and control functions like memory, emotions, speech, decision making, and motor skills. The occipital lobe processes visual information while the auditory cortex and temporal lobes process sound. The somatosensory cortex forms a map of the body's touch sensations. Smell and taste are analyzed in the olfactory bulb. Memory functions are controlled by the hippocampus, prefrontal lobes, and cerebellum. Emotions originate in the limbic system and amygdala. The prefrontal cortex controls social behaviors and complex emotions. Decision making involves the prefrontal lobes. Motor functions involve areas like the motor cortex and basal ganglia. The two hemispheres
07a association cortex frontal lobe
1. The document discusses the anatomical organization and functional roles of different areas of the cerebral cortex, including sensory processing, motor control, and association areas.
2. It specifically focuses on Brodmann's mapping of the human cortex, which identified 47 distinct regions based on cytoarchitecture.
3. The prefrontal cortex is highlighted as the area that gives humans capacities for empathy, understanding humor, and regulating social behavior.
Forebrain
Your brain is the most complex technology anywhere in the world. It’s made up of three major parts: the forebrain, midbrain and hindbrain. These divisions allows us simplify and understand the functions of the brain.
Physiological Basis of Behavior
The document discusses the physiological basis of behavior, focusing on the nervous system and endocrine system. It describes the central nervous system, including the brain and spinal cord, as well as the peripheral nervous system. It then covers the structure and function of neurons, the divisions of the nervous system including the somatic and autonomic systems, and the basic functions of the nervous system in receiving sensory input, integrating information, and responding. Finally, it provides an overview of the endocrine system and key glands like the pituitary, thyroid, adrenal and reproductive glands, and the hormones they secrete that regulate bodily functions.
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Cortex, limbic etc
The document discusses several topics related to the cerebral cortex and brain functions:
1. It describes the six layers of the cerebral cortex and their roles in processing sensory and motor signals.
2. It discusses some functional areas of the cortex including those involved in language, face recognition, and spatial awareness.
3. It covers topics like cerebral dominance, language areas, aphasias, memory, thought, the limbic system, hypothalamus, amygdala, reticular formation, and sleep cycles.
4. Key areas and structures mentioned include Wernicke's area, Broca's area, hippocampus, hypothalamus, amygdala, reticular formation, and their
Brain function
The document discusses brain functions and lateralization of functions between the left and right hemispheres. It covers:
1) Early studies by Gall and phrenology localized brain functions, while Flourens argued functions were distributed. Broca and Wernicke's studies of aphasia patients localized language production and comprehension areas.
2) The left hemisphere is specialized for language in most people. Damage can cause speech problems. The right hemisphere handles visuospatial tasks, and can take over some language functions after left damage.
3) Split-brain patients, whose corpus callosum is cut, have independent hand use and respond differently to each visual field, showing lateralization of functions between hemispheres.
The human brain
The human brain has three main parts - the cerebrum, cerebellum, and brain stem. The cerebrum is divided into two hemispheres and four lobes. Broca's area in the left frontal lobe controls speech production, while Wernicke's area in the left temporal lobe controls language comprehension. Damage to these areas can result in different types of aphasia. The brain is highly complex and not fully understood, controlling functions like thinking, movement, senses, and more.
Cerebral cortex
The document discusses the structure and function of the cerebral cortex. It describes the six layers of the cortex and notes that sensory input arrives in layer 4 while output signals leave through layers 5 and 6. It then discusses functional areas like association areas and specific areas for tasks like face recognition. The document also covers cerebral dominance, lesions in different hemispheres, language areas and disorders, memory classification and the role of the hippocampus in memory storage.
Mystery of human brain
The document discusses the mystery and complexity of the human brain. It notes that the human brain is the largest among animals and has three main parts: the cerebrum, which is responsible for memory and emotional responses; the cerebellum, which controls motor functions and sensory processing; and the brain stem, which controls vital functions like respiration and blood pressure. The document highlights that the brain has over 100 trillion bytes of memory capacity and 10 billion neurons, yet we still only understand a fraction of its full abilities. Maintaining a healthy brain requires a balanced lifestyle with nutrition, sleep, and continuous learning.
Functional organization of the cerebral cortex i sensory & motor cortex
The document summarizes the functional organization of the cerebral cortex. It describes that the cortex contains sensory, motor, and association areas. The sensory areas include primary somatosensory, visual, auditory, gustatory and olfactory areas which receive and process sensory information from the body and environment. The motor areas include the primary motor area and Broca's area which control voluntary movements. Association areas integrate different types of information for higher-level cognitive functions.
The human brain presentation
The document summarizes the structure and function of the human brain. It discusses that the brain is divided into two hemispheres, with each hemisphere further divided into four lobes - frontal, parietal, occipital, and temporal. The frontal lobe is involved in functions like memory, emotions, reasoning and language. Broca's area in the left frontal lobe controls speech production while Wernicke's area in the left temporal lobe is involved in language comprehension. The hemispheres have some functional differences, with the left typically dominating language and analytical functions and the right dominating more holistic processing.
Brain architecture
The document discusses the major structures of the human brain. It describes the four lobes in each hemisphere - the frontal, parietal, temporal, and occipital lobes. The cerebellum coordinates muscle movements. The occipital lobes process visual information. The temporal lobes process auditory information. The parietal lobes process sensory information. The frontal lobes are largest in humans and are involved in higher cognitive functions. Additionally, the limbic system generates instinctive emotions and the brain stem controls vital unconscious functions like breathing.
独中高中生物Chapter 13 Part 3 Peripheral nervous syste,
- The peripheral nervous system (PNS) consists of nerves and ganglia outside the brain and spinal cord that relay signals between the central nervous system and the body. The PNS includes the somatic and autonomic nervous systems.
- The somatic nervous system controls voluntary body movements via skeletal muscles. The autonomic nervous system unconsciously regulates functions of internal organs through sympathetic and parasympathetic nerves.
- Sympathetic nerves dominate the "fight or flight" response while parasympathetic nerves dominate "rest and digest".
The Brain & Behavior
Basic understanding of the brain & nervous system & its effects on behavior for a General Psychology class.
Brain cortical regions and functions
The document discusses the major divisions and structures of the human brain. It begins by describing the four lobes of the cerebrum - frontal, parietal, occipital, and temporal. It then provides details on the cortical regions within each lobe and their functions, such as Broca's area for speech production and Wernicke's area for language comprehension. The document also discusses investigations like the case of Phineas Gage to illustrate how injuries to specific brain regions can impact functions.
The structure and function of the brain
The document summarizes the structure and function of the major parts of the brain. It describes the cerebral cortex as having sensory, motor, and association areas. It then discusses the four main lobes of the brain - the frontal, parietal, temporal, and occipital lobes - and describes the primary and association areas within each lobe. The primary areas are responsible for basic sensory and motor functions, while the association areas integrate information for higher cognitive processes.
Brain lateralization
The document discusses brain lateralization and the critical period hypothesis. It describes how the brain is divided into left and right hemispheres that develop specialized functions. The left hemisphere is specialized for language and logical/analytical tasks while the right hemisphere is specialized for intuition, creativity, and spatial awareness. It also discusses how there is a critical period for language acquisition in childhood where language learning comes easily without teaching, and becomes more difficult after this period ends.
Language and brain
The document discusses how language is studied in the brain through neurolinguistics and psycholinguistics. Neurolinguistics explores how language processing occurs across nerves and the brain, while psycholinguistics focuses on the psychological aspects of language acquisition, storage, comprehension, and production. Researchers have attempted to localize language functions in different areas of the brain, finding that language involves both hemispheres working together, though typically the left hemisphere is dominant for language. Key language areas include Broca's and Wernicke's areas in the frontal and temporal lobes respectively.
9. cerebral cortex-08-09
The document summarizes the structure and functions of the cerebral cortex. It discusses the six layers of the cerebral cortex and how they are arranged. It also describes the four main lobes of the cerebral cortex - the frontal, parietal, temporal and occipital lobes - and some of their functions. Additionally, it covers the limbic system and its role in emotion, motivation and memory. It notes that in most individuals, the left hemisphere is dominant for language and precise motor skills.
Cerebral cortex
The cerebral cortex consists of two hemispheres covered in convoluted gyri and sulci. It is the largest part of the human brain. The hemispheres are separated by a fissure and connected by the corpus callosum. The neocortex, or association cortex, is the phylogenetically newest part responsible for higher functions like language, memory, and intelligence. It is divided into four lobes - frontal, parietal, temporal, and occipital - each with distinct functions. The left hemisphere is typically dominant for language and logical thinking.
CEREBRAL CORTEX IN HUMAN BRAIN
Different animal species have many structures in common, including a cerebellum and cortex.
The cortex is much larger in mammals than in species that evolved earlier, such as fish and amphibians.
The cross section of the human brain shows how the cerebral cortex has developed around and above more primitive brain structures. Localization—notion that different functions are located in different areas of the brainLateralization—notion that different functions are processed primarily on one side of the brain or the other
The Human Brain
The document summarizes how different areas of the brain process different types of sensory information and control functions like memory, emotions, speech, decision making, and motor skills. The occipital lobe processes visual information while the auditory cortex and temporal lobes process sound. The somatosensory cortex forms a map of the body's touch sensations. Smell and taste are analyzed in the olfactory bulb. Memory functions are controlled by the hippocampus, prefrontal lobes, and cerebellum. Emotions originate in the limbic system and amygdala. The prefrontal cortex controls social behaviors and complex emotions. Decision making involves the prefrontal lobes. Motor functions involve areas like the motor cortex and basal ganglia. The two hemispheres
07a association cortex frontal lobe
1. The document discusses the anatomical organization and functional roles of different areas of the cerebral cortex, including sensory processing, motor control, and association areas.
2. It specifically focuses on Brodmann's mapping of the human cortex, which identified 47 distinct regions based on cytoarchitecture.
3. The prefrontal cortex is highlighted as the area that gives humans capacities for empathy, understanding humor, and regulating social behavior.
Forebrain
Your brain is the most complex technology anywhere in the world. It’s made up of three major parts: the forebrain, midbrain and hindbrain. These divisions allows us simplify and understand the functions of the brain.
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Functional organization of the cerebral cortex i sensory & motor cortex
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nervous system.pptx
The nervous system is comprised of interconnected systems and subsystems that work together to maintain homeostasis in the human body. It receives information from sensory receptors about internal and external changes through neurons, which are cells that transmit signals through branched dendrites and a single axon. There are three main types of neurons: efferent neurons which conduct motor signals, afferent neurons which conduct sensory signals, and interneurons which connect between neurons.
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The nervous system controls and coordinates all essential functions of the body. It has two main parts - the central nervous system comprising the brain and spinal cord, and the peripheral nervous system comprising nerves outside the brain and spinal cord. The nervous system gathers sensory information and sends motor commands through neurons. It maintains homeostasis through the autonomic nervous system which regulates involuntary functions. Common disorders of the nervous system include epilepsy, cerebral palsy, Parkinson's disease, and multiple sclerosis.
Nervous System
The nervous system controls and coordinates the body's activities and consists of the central nervous system and the peripheral nervous system. The central nervous system is comprised of the brain and spinal cord. The peripheral nervous system consists of nerves that connect to the central nervous system and transmit signals between different parts of the body. The nervous system has sensory neurons that receive stimuli and motor neurons that send signals to muscles and glands to respond.
Nervous system
The nervous system controls and coordinates all functions of the human body. It is composed of the central nervous system, made up of the brain and spinal cord, and the peripheral nervous system, consisting of nerves that connect to the rest of the body. The nervous system uses neurons to transmit signals as electrical and chemical impulses to regulate bodily functions like movement, senses, breathing, thinking, and more. Damage or diseases of the nervous system can impair these functions.
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Our nervous system allows us to perceive and control our body's activities. It consists of the brain, spinal cord, and nerves throughout the body. The brain acts as the control center, receiving signals from and sending signals to different parts of the body via the network of nerves. The human nervous system can be divided into the central nervous system of the brain and spinal cord, and the peripheral nervous system which carries messages between the central system and body organs.
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Here we discussed about some important outlines concerned of psychobiology which is coming under unit 2 of syllabus of clinical speciality - mental health nursing.
The key points are,
- The anatomic review
- Brain & limbic system
- Nerve tissue-> Neurons & Neuroglia, Synapses, Synaptic cleft
- Neurotransmitters
- Autonomic nervous system, - sympathetic and parasympathetic nervous system.
Apart from these, its relation with different psychiatric disorders are also explained in brief.
Nervous system
The nervous system coordinates the body's actions and sensory information. It is composed of the brain, spinal cord, nerves, and ganglia. The nervous system has three main functions - sensory, which detects stimuli; integrative, which processes sensory information; and motor, which causes muscle and gland responses. It is divided into the central nervous system of the brain and spinal cord, and the peripheral nervous system of nerves and ganglia. The peripheral system connects the central system to the body and is divided into the autonomic and sensory systems. Neurons are specialized cells that conduct nerve impulses.
Nervous system
The document summarizes the structure and function of the nervous system. It describes that the nervous system is comprised of two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS includes the brain and spinal cord, which act as the control center. The PNS includes nerves that connect the CNS to other parts of the body. Neurons are the basic working units that transmit signals through the nervous system. Communication occurs at synapses between neurons. The brain and spinal cord work together with the peripheral nerves to coordinate sensory input, integration of information, and motor output to control bodily functions.
The nervous system
The document discusses the nervous system and its main components:
1) The central nervous system (CNS) controls most body functions and consists of the brain and spinal cord. The brain interprets sensory information and controls movement.
2) The peripheral nervous system (PNS) connects the CNS to organs and limbs. It has two divisions - the somatic nervous system which controls voluntary movement, and the autonomic nervous system which controls involuntary functions.
3) Nerve fibers transmit signals in the CNS and PNS. Myelin sheaths surround some fibers and are formed by different cells in each system.
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Nervous system
- 2. OVERVIEW OF THE NERVOUS SYSTEM •The nervous system is the body's main communication system that gathers, synthesizes, and uses data from the environment. •The nervous system's most basic unit is the neuron, which serves as both a sensor and communicator of internal and external stimuli. •The nervous system can be broken down into two major parts—the central nervous system and the peripheral nervous system. •The central nervous system includes the brain and spinal cord—the main data center of the body. •The peripheral nervous system includes all of the neurons that sense and communicate data to the central nervous system. •The peripheral nervous system can be further divided into the autonomic system that regulates involuntary actions, and the somatic system that controls voluntary actions.
- 3. -phasia The suffix –phasia means speech. A medical term using this suffix is dysphasia. Dys- =abnormal, difficult Difficulty communicating verbally or in writing due to damage of the speech or language centers in the brain. **Double click on the Image to view the video of a young lady with Dysphasia.**
- 4. -paresis This suffix means weakness. A medical term used with this suffix is hemiparesis. Hemi- =half Weakness or loss of motion on one side of the body. **The picture to the right displays a patient who has weakness or loss on one side of her body**