Divisions of Nervous System
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The central nervous system (CNS) is comprised of the brain and spinal cord. The spinal cord transmits sensory and motor signals to and from the brain and controls reflexes. The brain controls consciousness, higher mental processes, and regulates bodily functions. It is protected by three membranes (meninges) and the skull. The dura mater is the tough outer membrane, the arachnoid mater is the middle delicate layer, and the pia mater is the innermost delicate membrane that produces cerebrospinal fluid (CSF) to cushion and protect the CNS.
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The brain
The document discusses the structure and function of the human brain. It is divided into three main parts: the hindbrain, midbrain, and forebrain. The hindbrain controls essential functions like breathing and blood flow. The midbrain connects the hindbrain and forebrain and controls auditory reflexes and posture. The forebrain is the highest region and is involved in processing complex information. It contains the thalamus, hypothalamus, limbic system, and cerebrum.
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The central nervous system consists of the brain and spinal cord. The brain is made up of the cerebrum, cerebellum, and brain stem. The cerebrum controls thought, language, senses, memory, and movement. The cerebellum controls muscle coordination, balance, and posture. The brain stem connects the brain to the spinal cord and controls breathing, swallowing, heartbeat, and blood pressure. The spinal cord serves as the communication link between the brain and body and contains nerve fibers that transmit signals.
Anatomy of Brainstem
The brainstem lies at the base of the brain and top of the spinal cord. It contains three structures - the midbrain, pons, and medulla oblongata. The brainstem controls vital functions like breathing, heart rate, and blood pressure through centers and cranial nerve nuclei. Damage to the brainstem from a stroke can cause severe symptoms affecting breathing, movement, sensation, and other critical body functions.
Nervous system
The nervous system coordinates voluntary and involuntary actions through the central nervous system (CNS) and peripheral nervous system (PNS). The CNS contains the brain and spinal cord. The brain, which is the most complex organ, contains structures like the cerebrum, cerebellum, and brain stem that control functions like movement, balance, vision, and basic life processes. The cerebrum contains lobes that control functions like memory, speech, and emotion. The spinal cord extends from the brain and contains regions that nerves connect to throughout the body.
What is brain
The human brain is the command center of the nervous system located in the skull. It receives sensory input and controls muscle output. The brain is divided into three main sections - the cerebrum, brainstem, and cerebellum. The cerebrum is the largest part and is divided into four lobes which control different functions like vision, sound, language, and spatial reasoning. The brainstem connects the brain to the spinal cord and controls vital functions. Between the cerebrum and brainstem are the thalamus and hypothalamus which relay signals and regulate bodily processes.
The Central Nervous System
The central nervous system consists of the brain and spinal cord. The brain is the control center located in the head and is made up of the forebrain, midbrain, and hindbrain. The forebrain controls functions like sensory processing, thinking, language, and motor control. It contains the cerebrum and diencephalon. The cerebrum is divided into four lobes. The midbrain connects the hindbrain and forebrain and controls auditory, visual, and motor functions. The hindbrain extends from the spinal cord and contains the cerebellum and pons. The cerebellum controls movement coordination and balance. The spinal cord runs down the back and connects the brain to the rest of the body.
Nervous system
The central nervous system contains the brain and spinal cord. The brain is contained within the skull and is made up of around 100 billion neurons divided into three main parts - the cerebrum, cerebellum, and brain stem. It controls vital functions like movement, sleep, emotions, and interprets signals from the body and environment. The cerebellum coordinates movement and balance while the brain stem connects the brain and spinal cord. The spinal cord is a cylinder of nerve tissue that transmits signals between the brain and body through spinal nerves.
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The central nervous system consists of the brain and spinal cord. The brain is made up of the cerebrum, cerebellum, and brain stem. The cerebrum controls thought, language, senses, memory, and movement. The cerebellum controls muscle coordination, balance, and posture. The brain stem connects the brain to the spinal cord and controls breathing, swallowing, heartbeat, and blood pressure. The spinal cord serves as the communication link between the brain and body and contains nerve fibers that transmit signals.
Anatomy of Brainstem
The brainstem lies at the base of the brain and top of the spinal cord. It contains three structures - the midbrain, pons, and medulla oblongata. The brainstem controls vital functions like breathing, heart rate, and blood pressure through centers and cranial nerve nuclei. Damage to the brainstem from a stroke can cause severe symptoms affecting breathing, movement, sensation, and other critical body functions.
Nervous system
The nervous system coordinates voluntary and involuntary actions through the central nervous system (CNS) and peripheral nervous system (PNS). The CNS contains the brain and spinal cord. The brain, which is the most complex organ, contains structures like the cerebrum, cerebellum, and brain stem that control functions like movement, balance, vision, and basic life processes. The cerebrum contains lobes that control functions like memory, speech, and emotion. The spinal cord extends from the brain and contains regions that nerves connect to throughout the body.
What is brain
The human brain is the command center of the nervous system located in the skull. It receives sensory input and controls muscle output. The brain is divided into three main sections - the cerebrum, brainstem, and cerebellum. The cerebrum is the largest part and is divided into four lobes which control different functions like vision, sound, language, and spatial reasoning. The brainstem connects the brain to the spinal cord and controls vital functions. Between the cerebrum and brainstem are the thalamus and hypothalamus which relay signals and regulate bodily processes.
The Central Nervous System
The central nervous system consists of the brain and spinal cord. The brain is the control center located in the head and is made up of the forebrain, midbrain, and hindbrain. The forebrain controls functions like sensory processing, thinking, language, and motor control. It contains the cerebrum and diencephalon. The cerebrum is divided into four lobes. The midbrain connects the hindbrain and forebrain and controls auditory, visual, and motor functions. The hindbrain extends from the spinal cord and contains the cerebellum and pons. The cerebellum controls movement coordination and balance. The spinal cord runs down the back and connects the brain to the rest of the body.
Nervous system
The central nervous system contains the brain and spinal cord. The brain is contained within the skull and is made up of around 100 billion neurons divided into three main parts - the cerebrum, cerebellum, and brain stem. It controls vital functions like movement, sleep, emotions, and interprets signals from the body and environment. The cerebellum coordinates movement and balance while the brain stem connects the brain and spinal cord. The spinal cord is a cylinder of nerve tissue that transmits signals between the brain and body through spinal nerves.
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Spinal cord
The spinal cord contains white and grey matter. The dorsal column contains sensory pathways, while the ventral column contains both sensory and motor pathways. Pain pathways are located in the ventral column. The dorsal horn contains sensory neurons and the ventral horn contains motor neurons. The substantia gelatinosa transmits sensations of pain, temperature, and touch while the nucleus proprius transmits proprioception. The dorsal horn is organized into strips and the ventral horn into columns. The spinal cord has enlargements in the cervical and lumbar regions to increase motor neurons for the arms and legs.
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The nervous system consists of two main parts, the central nervous system made up of the brain and spinal cord, and the peripheral nervous system made up of nerves that connect the central nervous system to the rest of the body. The brain is made up of several lobes that each control different functions - the frontal lobe controls intelligence, the parietal lobe controls movement, the temporal lobe controls memory and hearing, and the occipital lobe controls vision. The cerebellum controls coordination and balance, and the spinal cord extends from the brainstem and transmits signals between the brain and the rest of the body.
Nervous system
The nervous system consists of neurons that connect the central nervous system (the brain and spinal cord) to the peripheral nervous system. The central nervous system controls voluntary and involuntary functions and processes sensory information. It is composed of the brain, spinal cord, and nerves that connect them. The peripheral nervous system includes cranial and spinal nerves that connect to sensory receptors and muscles throughout the body.
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The central nervous system is comprised of the brain and spinal cord. The brain controls bodily functions like awareness, movement, and memory. The spinal cord transmits sensory and motor signals through the spinal canal. The brain is protected by meninges and cerebrospinal fluid. It can be divided into the hindbrain, midbrain, and forebrain. The forebrain contains structures that regulate homeostasis, memory, emotion, and higher cognitive functions.
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The human brain is divided into three main parts - the forebrain, midbrain, and hindbrain. The forebrain contains the cerebrum, thalamus, and limbic system. The thalamus carries sensory information to the cerebrum and limbic system. The hypothalamus connects the nervous system to the pituitary gland which controls growth and reproduction. The limbic system controls responses like hunger, fear, and sexual responses. The midbrain controls reflexes and hearing. The hindbrain contains the cerebellum, pons, and medulla oblongata. The cerebellum controls balance and voluntary movement, while the medulla oblongata controls automatic functions like breathing and heart rate.
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The nervous system is made up of the central nervous system (brain and spinal cord) and the peripheral nervous system (nerves). The brain is divided into three main parts - the forebrain, midbrain, and hindbrain. The forebrain includes the cerebrum, thalamus, and hypothalamus. The midbrain contains the tectum and tegmentum. The hindbrain comprises the cerebellum, pons, and medulla. Each region of the brain controls different functions, from basic functions like breathing and heartbeat to higher functions like memory, language, and decision making. Sensory nerves gather information and motor neurons deliver instructions from the brain to the body.
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.
The central nervous system,,,ext
The central nervous system consists of the brain and spinal cord. The brain is divided into the forebrain, midbrain, and hindbrain. The forebrain contains structures like the cerebral cortex that control functions like thinking and producing language. The midbrain regulates sensory processes and body movement. The hindbrain includes the cerebellum, pons, and medulla, which are involved in motor control, balance, and vital functions. The spinal cord connects the brain to the rest of the body and transmits motor and sensory signals.
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The document provides an overview of the major parts of the brain and their functions, including:
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- The limbic system, which regulates emotions and includes the amygdala, hippocampus and hypothalamus. The amygdala processes emotions while the hippocampus forms memories.
- The brain stem, which controls vital functions like breathing and maintains homeostasis. It includes the midbrain, pons and medulla.
- Other structures like the thalamus, which routes sensory information, and the large cerebellum,
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The document summarizes several parts of the human brain and nervous system. It describes the four major lobes of the cerebral cortex: the frontal lobe located at the front, the temporal lobe located beneath the lateral fissure, the parietal lobe positioned above the occipital lobe, and the occipital lobe which is the visual processing center. It also outlines the cerebellum which coordinates voluntary movements, the spinal cord which extends from the brainstem to the lumbar region, the nerves which transport information, and the vertebral column also known as the backbone.
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The brain is composed of the cerebrum, cerebellum, and brainstem. The cerebrum controls functions like intelligence and emotion and is divided into left and right hemispheres connected by the corpus callosum. The cerebellum coordinates movement and balance, while the brainstem regulates automatic functions like breathing. Each hemisphere of the cerebrum has four lobes - frontal, parietal, temporal, and occipital - which are involved in various cognitive and sensory functions. Deep structures like the thalamus and basal ganglia also help coordinate brain activity. The brain is protected by meninges and communicates with the body via cranial nerves.
The Forebrain
The forebrain contains several important structures and is located at the front of the brain. It contains the limbic system, thalamus, hypothalamus, pituitary gland, basal ganglia, hippocampus, ventricles containing cerebrospinal fluid, and meninges. The limbic system controls behaviors like motivation and emotions. The thalamus acts as a relay for sensory information to and from the brain. The hypothalamus and pituitary gland regulate hormones that control eating, drinking, temperature, and stress levels. The hippocampus stores new memories.
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The document summarizes the main parts and functions of the nervous system. It describes how neurons are the basic unit and how they transmit electrical signals through dendrites, an axon, and to other neurons. It also outlines the major parts of the brain like the cerebellum, brain stem, and spinal cord. The brain controls voluntary movements, thinking, memory, and receives and sends sensory information throughout the body and nervous system.
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The document describes the structure and function of the human nervous system. It is divided into two main parts: the central nervous system (CNS), comprising the brain and spinal cord, and the peripheral nervous system (PNS). The CNS receives and integrates sensory information and coordinates voluntary and involuntary motor responses. The PNS connects the CNS to sensory receptors and effector organs throughout the body. Key components include the brain, spinal cord, neurons, and over 30 pairs of cranial and spinal nerves.
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The nervous system is the body's control center and communication network. It is composed of neurons and neuroglial cells and is divided into the central nervous system (brain and spinal cord) and peripheral nervous system. Neurons transmit electrochemical signals to coordinate senses, thoughts, movement, and organ function, while neuroglial cells provide support and protection. The central nervous system processes information and the peripheral nervous system connects it to the rest of the body.
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The document summarizes key structures and regions of the brain. It describes the corpus callosum as a thick band of fibers connecting the two cerebral hemispheres. It then outlines the four main lobes of the brain - frontal, parietal, temporal, and occipital - and their functions. Finally, it briefly defines and describes additional important areas such as the motor and sensory strips, cerebellum, thalamus, hypothalamus, pituitary gland, and others critical to functions like memory, language, movement, arousal and more.
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The spinal cord contains white and grey matter. The dorsal column contains sensory pathways, while the ventral column contains both sensory and motor pathways. Pain pathways are located in the ventral column. The dorsal horn contains sensory neurons and the ventral horn contains motor neurons. The substantia gelatinosa transmits sensations of pain, temperature, and touch while the nucleus proprius transmits proprioception. The dorsal horn is organized into strips and the ventral horn into columns. The spinal cord has enlargements in the cervical and lumbar regions to increase motor neurons for the arms and legs.
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The nervous system consists of two main parts, the central nervous system made up of the brain and spinal cord, and the peripheral nervous system made up of nerves that connect the central nervous system to the rest of the body. The brain is made up of several lobes that each control different functions - the frontal lobe controls intelligence, the parietal lobe controls movement, the temporal lobe controls memory and hearing, and the occipital lobe controls vision. The cerebellum controls coordination and balance, and the spinal cord extends from the brainstem and transmits signals between the brain and the rest of the body.
Nervous system
The nervous system consists of neurons that connect the central nervous system (the brain and spinal cord) to the peripheral nervous system. The central nervous system controls voluntary and involuntary functions and processes sensory information. It is composed of the brain, spinal cord, and nerves that connect them. The peripheral nervous system includes cranial and spinal nerves that connect to sensory receptors and muscles throughout the body.
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The document summarizes several key parts of the central nervous system (CNS). It describes the meninges as protective membranes that surround the CNS and cerebrospinal fluid (CSF), which is contained within the inner meninges. It then discusses the cerebrum, made up of left and right cerebral hemispheres connected by the corpus callosum. Each hemisphere is divided into four lobes and performs sensory, association, and motor functions. The thalamus channels sensory signals to the appropriate brain region, while the hypothalamus is involved in homeostasis. The cerebellum coordinates movement and posture, and the medulla regulates autonomic functions.
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The central nervous system is comprised of the brain and spinal cord. The brain controls bodily functions like awareness, movement, and memory. The spinal cord transmits sensory and motor signals through the spinal canal. The brain is protected by meninges and cerebrospinal fluid. It can be divided into the hindbrain, midbrain, and forebrain. The forebrain contains structures that regulate homeostasis, memory, emotion, and higher cognitive functions.
Central nervous system
The brain controls voluntary movement, balance, involuntary organs, endocrine glands, and behavior. It is responsible for thermoregulation, hunger, thirst, circadian rhythms, vision, hearing, speech, memory, intelligence, emotions, and thoughts. The brain is protected by bones of the skull and layers of meninges. It is divided into the forebrain, midbrain, and hindbrain. The forebrain includes the cerebrum, thalamus, and hypothalamus. The cerebrum is divided into left and right hemispheres which are connected by the corpus callosum. The hypothalamus controls body temperature, pituitary gland, emotions, hunger, thirst, and circadian rhythms. The
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The honey bee's nervous system consists of a brain and 7 ganglia located throughout the body. While the brain controls higher functions, most locomotion is controlled by the ganglia. Even after decapitation, bees can still move their legs and wings due to signals from the ganglia, though they cannot fly without balance from the head. The bee brain resembles the human brain less and has automatic functions transferred to the ganglia. Key parts of the bee brain that allow for learning and memory are the mushroom bodies located near the ocelli in the proto-cerebrum. The nervous system works with the bee's senses of smell via antennae, taste via cells on their tongue and legs, and touch via tactile
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The human brain is divided into three main parts - the forebrain, midbrain, and hindbrain. The forebrain contains the cerebrum, thalamus, and limbic system. The thalamus carries sensory information to the cerebrum and limbic system. The hypothalamus connects the nervous system to the pituitary gland which controls growth and reproduction. The limbic system controls responses like hunger, fear, and sexual responses. The midbrain controls reflexes and hearing. The hindbrain contains the cerebellum, pons, and medulla oblongata. The cerebellum controls balance and voluntary movement, while the medulla oblongata controls automatic functions like breathing and heart rate.
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The nervous system is made up of the central nervous system (brain and spinal cord) and the peripheral nervous system (nerves). The brain is divided into three main parts - the forebrain, midbrain, and hindbrain. The forebrain includes the cerebrum, thalamus, and hypothalamus. The midbrain contains the tectum and tegmentum. The hindbrain comprises the cerebellum, pons, and medulla. Each region of the brain controls different functions, from basic functions like breathing and heartbeat to higher functions like memory, language, and decision making. Sensory nerves gather information and motor neurons deliver instructions from the brain to the body.
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.
The central nervous system,,,ext
The central nervous system consists of the brain and spinal cord. The brain is divided into the forebrain, midbrain, and hindbrain. The forebrain contains structures like the cerebral cortex that control functions like thinking and producing language. The midbrain regulates sensory processes and body movement. The hindbrain includes the cerebellum, pons, and medulla, which are involved in motor control, balance, and vital functions. The spinal cord connects the brain to the rest of the body and transmits motor and sensory signals.
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The document provides an overview of the major parts of the brain and their functions, including:
- The cerebrum, which contains the cerebral cortex including the frontal, parietal, occipital and temporal lobes. The temporal lobe contains areas important for language and memory.
- The limbic system, which regulates emotions and includes the amygdala, hippocampus and hypothalamus. The amygdala processes emotions while the hippocampus forms memories.
- The brain stem, which controls vital functions like breathing and maintains homeostasis. It includes the midbrain, pons and medulla.
- Other structures like the thalamus, which routes sensory information, and the large cerebellum,
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The document summarizes several parts of the human brain and nervous system. It describes the four major lobes of the cerebral cortex: the frontal lobe located at the front, the temporal lobe located beneath the lateral fissure, the parietal lobe positioned above the occipital lobe, and the occipital lobe which is the visual processing center. It also outlines the cerebellum which coordinates voluntary movements, the spinal cord which extends from the brainstem to the lumbar region, the nerves which transport information, and the vertebral column also known as the backbone.
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The brain is composed of the cerebrum, cerebellum, and brainstem. The cerebrum controls functions like intelligence and emotion and is divided into left and right hemispheres connected by the corpus callosum. The cerebellum coordinates movement and balance, while the brainstem regulates automatic functions like breathing. Each hemisphere of the cerebrum has four lobes - frontal, parietal, temporal, and occipital - which are involved in various cognitive and sensory functions. Deep structures like the thalamus and basal ganglia also help coordinate brain activity. The brain is protected by meninges and communicates with the body via cranial nerves.
The Forebrain
The forebrain contains several important structures and is located at the front of the brain. It contains the limbic system, thalamus, hypothalamus, pituitary gland, basal ganglia, hippocampus, ventricles containing cerebrospinal fluid, and meninges. The limbic system controls behaviors like motivation and emotions. The thalamus acts as a relay for sensory information to and from the brain. The hypothalamus and pituitary gland regulate hormones that control eating, drinking, temperature, and stress levels. The hippocampus stores new memories.
2. the nervous system
The document summarizes the main parts and functions of the nervous system. It describes how neurons are the basic unit and how they transmit electrical signals through dendrites, an axon, and to other neurons. It also outlines the major parts of the brain like the cerebellum, brain stem, and spinal cord. The brain controls voluntary movements, thinking, memory, and receives and sends sensory information throughout the body and nervous system.
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The nervous system is composed of the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS). The CNS controls voluntary movement and processes sensory information while the PNS connects the CNS to the rest of the body. The brain can be divided into the cerebrum, cerebellum, and brainstem. The cerebrum is responsible for higher functions like thinking and processing senses, the cerebellum controls muscle coordination, and the brainstem regulates vital functions. The spinal cord relays signals between the brain and body through sensory and motor neurons that join to form spinal nerves.
The nervous system
The nervous system is a complex network of nerves and cells that carry messages between the brain and spinal cord and the rest of the body. It consists of the central nervous system, made up of the brain and spinal cord, and the peripheral nervous system. The nervous system functions through neurons, which transmit electrochemical signals, and neuroglia, or glial cells, which support neuron function. Sensory neurons carry signals from receptors to the central nervous system for processing, while motor neurons then carry signals from the brain and spinal cord to effector cells in the body's tissues and organs.
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The nervous system is composed of nerve cells called neurons that communicate with each other and other cells. It has two main divisions - the central nervous system consisting of the brain and spinal cord, and the peripheral nervous system consisting of nerves linking the body to the CNS. The brain is protected by membranes and bone and has four main regions - the cerebrum, cerebellum, diencephalons, and brain stem. The cerebrum controls intellectual functions, the cerebellum controls muscle coordination, and the diencephalons relay sensory information and regulate body functions. Cerebrospinal fluid cushions and nourishes the brain and spinal cord. Blood circulates to the brain through arteries and veins, protected by the blood
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The nervous system is composed of the brain, spinal cord and nerves. It coordinates and controls the activities of the body through sending and receiving messages as electrical signals along neurons. Sensory neurons detect stimuli and send messages to the central nervous system. The brain then interprets the messages and sends responses through motor neurons to trigger actions in the body's organs and muscles. The nervous system allows for both voluntary and involuntary body functions through this process of receiving and transmitting nerve impulses.
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The central nervous system (CNS) consists of the brain and spinal cord. The brain is protected by membranes, bones, and cerebrospinal fluid. It contains neurons and is divided into the forebrain, midbrain, and hindbrain. The forebrain controls functions like emotions and memory. The spinal cord extends from the brain down the back and connects to all parts of the body, controlling movement and carrying sensory information. It is divided into cervical, thoracic, and lumbar regions.
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The nervous system derives its name from nerves, which are cylindrical bundles of fibers
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The system of nerves and nerve centers in human, including the brain, spinal cord, nerves, and ganglia.
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nerve impulses transmitted along each of the axons through synapse.
Nerves are the organs that make up the peripheral nervous system
(PNS).
They serve as information pipelines that allow the brain and spinal cord to communicate with other tissues and organs.
Inside the nerves, groups
called fascicles (fasciculi).
Surrounding and holding together each fascicle is the perineurium.
Inside the fasicles,each neurons and blood vessels are held in place by a loose connectivetissue referrred to as endoneurium
Epineurium, a layer of dense connective tissue, covers and holds together the outer surface of
nerves.
Arteries and veins are located between the fascicles. Branches of these vessels enter the fascicles
and supply the neurons with nutrients and gases.
Renaut body is the pink colour cellular structure that perform supportive and mechanical cushion effect on neurons.
the nervous system is classified int CNS, ANS,PNS & SNS.
THE CNS IS MADE UP OF
THE BRAIN
SPINAL CORD
BRAINSTEM and
RETINA.
BRAIN OVERVIEW:
The average adult human brain weighs about 3 pounds (1300 to 1400 grams). When we consider a newborn baby’s brain, it weighs approximately three-quarters of a pound (350 to 400 grams).
In terms of dimensions, the human brain measures about 5.5 x 6.5 x 3.6 inches (140 x 167 x 93 mm).
It has 86 -100 billion neurons, enables memory, learning, and adaptability.
the brain is considered fully formed by the age of 25.
It develops from back to front, with the prefrontal cortex responsible for decision-making and reasoning.
Interestingly, men tend to have slightly larger brains than women.
cerebrum It is the largest part of the brain and is composed of right and left hemispheres.
The surface of the cerebrum is called the cortex.
The cerebrum is divided into two halves: the right and left hemispheres.
Each hemisphere controls the opposite side of the body.
The cortex has a folded appearance. A fold is called a gyrus and the valley between is a sulcus.
The cortex contains neurons cellbodies (grey matter), which are
interconnected to other brain areas by axons (white matter).
Each hemisphere has 4 lobes: frontal, temporal, parietal, and occipital.
There are mainly six deep structure in the brain they includes pituitary gland, pineal gland, thalamus, hypothalamus, basal ganglia and limbic system including cingulate Gyrus, amygdala, hippocampus and olfactory bulb
The human brain
This document provides information about the structure and function of the human brain and nervous system. It begins with definitions of the central nervous system (which includes the brain and spinal cord) and peripheral nervous system. It then describes the major parts of the brain - the cerebrum, cerebellum, brain stem, and diencephalon. It also discusses the somatic and autonomic nervous systems, comparing the sympathetic and parasympathetic divisions. Finally, it covers brain growth in the fetus and provides classifications of the nervous system.
Nervous system.docx
In humans and other higher animals, the central nervous system (CNS) and peripheral nervous system (PNS) collectively form the whole nervous system. The CNS, which serves as the body's control center, includes the spinal cord and the brain. The PNS, a nerve network, links the CNS to various bodily systems.
The brain
The document summarizes the anatomy and physiology of the brain. It describes the main parts of the brain including the cerebrum, cerebellum, and brain stem. The cerebrum is divided into four lobes that control motor skills, sensation, language, and vision. The cerebellum aids in movement coordination. The brain stem consists of the midbrain, pons, and medulla, and controls vital functions like breathing and heart rate. The document also outlines the structures of the diencephalon including the thalamus, hypothalamus, and pineal gland.
The human brain.pptx
The document discusses the anatomy and physiology of the brain. It describes the main parts of the brain as the cerebrum, cerebellum, and brain stem. The cerebrum is the largest part and is divided into four lobes that control functions like movement, sensation, vision, and language. The cerebellum aids in movement coordination and balance. The brain stem consists of the midbrain, pons, and medulla, and controls vital functions like breathing and heart rate. Other parts discussed include the thalamus and hypothalamus, which regulate sensation and autonomic body processes respectively.
Presentation1.pptx, radiological anatomy of the brain.
This document provides an overview of the radiological anatomy of the brain through computed tomography (CT) imaging. It describes the skull bones and sutures that form the cranial vault, as well as the three cranial fossae that house different brain structures. It also discusses the meningeal layers, including the falx cerebri and tentorium cerebelli, and cerebrospinal fluid spaces within the brain. Key structures like the pituitary fossa and ventricular system are identified. Understanding the normal CT anatomy of the brain provides important context for radiological interpretation.
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INTRODUCTION AND CLASSIFICATION OF NERVOUS SYSTEM (2).pptx
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Divisions of Nervous System
- 2. Central Nervous System Or the CNS is the command center of the nervous system; the brain, and in vertebrates, the spinal cord.
- 4. Spinal Cord Main pathway of afferent impulses to the brain as well as the efferent impulses from the brain. It is regarded as the seat of reflex actions.
- 5. Brain Regarded as the seat of consciousness and higher mental processes. Involved in regulating and controlling bodily activity and interpreting information from the senses transmitted through the nervous system.
- 6. The brain is safely protected by the skull and meninges
- 7. Periosteum From the Greek word Peri (around) and Ostoun (bone) Is a dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints.
- 8. Bone/Skull/Cranium Is a collection of bones which encase the brain and give form to head and face. The bones of the skull include
- 10. Dura Mater Latin for “Tough Mother” Also called Pachymeninx The tough outermost membrane enveloping the brain and the spinal cord
- 11. Arachnoid Mater A fine, delicate membrane, the middle one of the three meninges that surround the brain and spinal cord, situated between the dura mater and the pia mater
- 12. Pia Mater Latin for “Tender mother” The delicate innermost membrane enveloping the brain and spinal cord It protects the CNS by containing CSF which cushions the brain and spine
- 13. Cerebrospinal Fluid (CSF) A watery fluid that is continuously produced and absorbed and that flows in the ventricles within the brain and around the surface of the brain and the spinal cord.
- 14. Aside from CSF acting as a shock absorber to for the CNS it also circulates nutrients and chemicals filtered from the blood and removes waste products from the brain.
- 15. If production exceeds absorption, causing the fluid to accumulate, CSF pressure rises and the result is hydrocephalus which are common in children with brain tumors.