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The nervous system has two main divisions - the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS contains the brain and spinal cord, and is involved in processing sensory information and coordinating voluntary motor functions. The PNS connects the CNS to the rest of the body and its organs using nerves, carrying sensory information to the CNS and motor commands away from it. Within the CNS, the cerebrum is the largest part of the brain and involved in higher functions like thought, the cerebellum coordinates movement and balance, and the brainstem regulates involuntary functions essential for survival.
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Neurons are the basic structural and functional units of the nervous system. They transmit electrical and chemical signals and have three main parts - the cell body, dendrites, and axon. The cell body contains the nucleus. Dendrites receive signals and the long axon conducts signals away from the cell body. Neurons communicate with each other via synapses, where neurotransmitters are released by the presynaptic neuron and bind to receptors on the postsynaptic cell. This allows signals to be transmitted electrically along neurons and chemically between neurons.
Nervous system
The human nervous system consists of two main parts: the central nervous system comprising the brain and spinal cord, and the peripheral nervous system of nerves throughout the body. There are two types of actions - voluntary actions that require thinking and are slower, mainly controlled by the brain, and involuntary or reflex actions that occur without thinking and are faster, controlled by the spinal cord to perform life-saving functions. A reflex arc is the pathway by which a reflex action occurs, involving sensory and motor neurons that transmit signals from receptors to effectors like muscles.
General Physiology - The nervous system, basic functions of synapses
The document summarizes the organization and functions of the nervous system. It discusses the following key points:
1. The central nervous system contains over 100 billion neurons with dendrites that receive signals and axons that transmit signals in a forward direction via synapses.
2. There are three major levels of the central nervous system - the spinal cord level controls basic reflexes, the lower brain/subcortical level controls subconscious functions, and the higher brain/cortical level is responsible for thought processes and stores memories.
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The nervous system is a highly organized network of billions of nerve cells that functions as the control center of the body. It has two main divisions - the central nervous system comprising the brain and spinal cord, and the peripheral nervous system outside of these. Nerve cells called neurons are specialized to conduct electrical signals called action potentials that allow communication within the nervous system. Neurons have cell bodies and long processes called axons that transmit signals. They communicate with other neurons at junctions called synapses using chemical messenger molecules. The coordinated functions of sensation, integration and response enabled by this neuronal signaling allow the nervous system to monitor and control all bodily functions.
Physiology ch 9 lecture notes
The nervous system has two main divisions:
1. The central nervous system (CNS) comprising the brain and spinal cord.
2. The peripheral nervous system (PNS) comprising all other nerves outside the CNS.
Nerve tissue contains neurons, which transmit signals, and neuroglial cells which provide support. Neurons communicate via electrochemical signals called nerve impulses, traveling along nerve pathways between neurons. The brain and spinal cord are protected by membranes and fluid within the skull and vertebral column. The brain has three main parts which work together to control voluntary and involuntary functions.
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The nervous system is divided into the central nervous system (CNS) and peripheral nervous system (PNS). The CNS contains the brain and spinal cord, which coordinate incoming and outgoing information. The PNS connects the CNS to organs and sensory receptors, carrying signals to and from the CNS. Neurons are the basic functional units and come in sensory, motor, and interneuron types that differ in their dendrite and axon structures. Sensory neurons carry signals to the CNS while motor neurons carry signals away, and interneurons connect signals within the CNS.
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The nervous system is a highly organized network of billions of nerve cells that functions as the control center of the body. It has two main divisions - the central nervous system comprising the brain and spinal cord, and the peripheral nervous system outside of these. Nerve cells called neurons are specialized to conduct electrical signals called action potentials that allow communication within the nervous system. Neurons have cell bodies and long processes called axons that transmit signals. They communicate with other neurons at junctions called synapses using chemical messenger molecules. The coordinated functions of sensation, integration and response enabled by this neuronal signaling allow the nervous system to monitor and control all bodily functions.
Physiology ch 9 lecture notes
The nervous system has two main divisions:
1. The central nervous system (CNS) comprising the brain and spinal cord.
2. The peripheral nervous system (PNS) comprising all other nerves outside the CNS.
Nerve tissue contains neurons, which transmit signals, and neuroglial cells which provide support. Neurons communicate via electrochemical signals called nerve impulses, traveling along nerve pathways between neurons. The brain and spinal cord are protected by membranes and fluid within the skull and vertebral column. The brain has three main parts which work together to control voluntary and involuntary functions.
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MANUAL PËR PUNIMIN E DIPLOMËS MASTER
MANUAL PËR PUNIMIN E DIPLOMËS MASTER
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MANUAL PËR PUNIMIN E DIPLOMËS MASTER
MANUAL PËR PUNIMIN E DIPLOMËS MASTER
1.Hyrje
2.Informacion i përgjithshëm mbi programin e studimit “Master”
Korniza e kualifikimeve në Hapësirën Evropiane të Arsimit të Lartë
Programi i studimit
Nga konceptimi te punimi final
Kriteret e vlerësimit të punimit të diplomës master
3.Projekt-propozimi i temës së punimit të diplomës së masterit
Përmbajtja e projekt-propozimit të punimit të diplomës së masterit
Etika e kërkimit
Struktura e punimit shkencor
4.Shtojca
Shtojca 1: Projektpropozim për punimin kërkimor
Shtojca 2: Format i ballinës dhe faqes së pasme të punimit
Shtojca 3: Leje për mbrojtjen e punimit
Shtojca 4: Vlerësimi i udhëheqësit shkencor
Shtojca 5: Fletë vlerësimi
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Nervous system
The document summarizes the main components and functions of the nervous system. It describes the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), which contains nerves connecting the CNS to other organs. Key parts of the CNS discussed include the cerebrum, cerebellum, and brainstem. The document also outlines the structure and function of neurons, neural impulses, synapses, and reflex arcs. Common diagnostic techniques for the nervous system like EEGs, MRIs, CT scans, and PET scans are briefly described.
2 Human Body Nervous system.pptx
The nervous system has four primary functions: sensing the world, transmitting information, processing information, and producing responses. It is composed of neurons, which are the basic functional units that transmit electrochemical signals around the body. The nervous system has two main divisions: the central nervous system, comprising the brain and spinal cord, and the peripheral nervous system, comprising all other nerves. The central nervous system receives, interprets, and sends signals to the peripheral nervous system to coordinate body functions and responses.
2 Human Body Nervous system.pptx
The nervous system has four primary functions: sensing the world, transmitting information, processing information, and producing responses. It has two main divisions - the central nervous system (CNS) containing the brain and spinal cord, and the peripheral nervous system (PNS) containing all other nerves. The basic functional unit of the nervous system is the neuron, which transmits electrochemical signals through a reflex arc pathway involving sensory, inter, and motor neurons.
Nerve
The nervous system is composed of the central nervous system (brain and spinal cord) and the peripheral nervous system. The central nervous system contains neurons and neural pathways that process and integrate sensory information and coordinate voluntary and involuntary motor responses. The peripheral nervous system comprises the nerves and ganglia outside of the brain and spinal cord. It contains the somatic and autonomic divisions. Neurons are the basic functional units of the nervous system, consisting of a cell body, dendrites, and axon. They transmit electrochemical signals via synapses to coordinate sensory perception and motor responses.
Nerve PPT BPHARM 1ST YEAR HUMAN ANATOMY PHYSIOLOGY.PPT
The nervous system is composed of the central nervous system (brain and spinal cord) and peripheral nervous system. The central nervous system contains gray matter containing neuron cell bodies and white matter containing axon tracts. The peripheral nervous system contains 31 pairs of spinal nerves and 12 pairs of cranial nerves. The brain is divided into the cerebrum, cerebellum, and brainstem. The cerebrum contains the cerebral cortex and diencephalon. Neurons communicate via synapses and generate action potentials through ion channel openings. The autonomic nervous system regulates involuntary functions through the sympathetic and parasympathetic divisions.
The nervous system
The document summarizes the key aspects of the human nervous system. It describes how the nervous system and endocrine system both play a role in homeostasis through secreting chemical messages, though the nervous system is much faster. It defines the main cell type, neurons, and describes the three types - sensory, inter, and motor neurons. It also outlines the main components of the central nervous system, including the brain and spinal cord, and the peripheral nervous system. Finally, it briefly discusses some common malfunctions of the nervous system like cerebral palsy, meningitis, stroke, and polio.
Nerve (1).PPT
The nervous system is composed of the central nervous system (brain and spinal cord) and peripheral nervous system. The central nervous system contains the brain, which has three main areas - the cerebrum, cerebellum, and brainstem. The peripheral nervous system contains nerves that connect the central nervous system to the rest of the body and is divided into the somatic and autonomic nervous systems. Neurons are the basic functional units of the nervous system and communicate via electrical and chemical signals across synapses to coordinate sensation, thought, and movement.
Anatomy and physiology of Central Nervous System
The document summarizes the structure and function of the nervous system. It describes the central nervous system as including the brain and spinal cord. The peripheral nervous system is divided into the somatic and autonomic nervous systems. The autonomic nervous system regulates involuntary functions and is composed of the sympathetic and parasympathetic nervous systems. The somatic nervous system controls voluntary movement. Neurons transmit signals via electrical and chemical processes.
Anatomy & Physiology of Central Nervous System
The document summarizes the structure and function of the nervous system. It describes the central nervous system as including the brain and spinal cord. The peripheral nervous system is divided into the somatic and autonomic nervous systems. The autonomic nervous system regulates involuntary functions and is composed of the sympathetic and parasympathetic nervous systems. Neurons are specialized cells that transmit signals via electrical and chemical signaling. The basic components of neurons include the cell body, dendrites, axon, and synapses.
Chap 11 nervous system part 1
The nervous system functions to receive sensory input, integrate information, and initiate motor responses. It is composed of the central nervous system (brain and spinal cord) and peripheral nervous system (nerves). The two principal cell types are neurons, which transmit electrical signals, and neuroglia or glial cells, which support and insulate neurons. Glial cells include astrocytes, oligodendrocytes, microglia, ependymal cells, Schwann cells, and satellite cells. Neurons have a cell body, dendrites for receiving signals, and an axon for transmitting signals. Axons may be myelinated by glial cells to increase signal speed.
13. The Nervous System
The document summarizes key aspects of the nervous system, including:
1) It describes the basic structures and functions of neurons, neuroglia, the cerebrum, cerebellum, diencephalon, and brain stem.
2) It explains the organization and direction of signals in the central and peripheral nervous systems, including afferent, efferent, somatic, and autonomic nerves.
3) It outlines the processes of neuronal signaling including resting potential, depolarization, repolarization, synaptic transmission, and types of neurotransmitters.
4) It defines structures like the meninges and cerebrospinal fluid, and reflexes like stretch, withdrawal, and crossed extensor
Nervous system
The document discusses the integration and control functions of the nervous and endocrine systems. It states that:
- The nervous and endocrine systems interact to control most body functions.
- The nervous system exerts rapid control via nerve impulses, while the endocrine system's effects are more prolonged and mediated by hormones.
- Both systems are communication systems that receive and deliver messages throughout the body.
Nervous system ( anatomy and physiology)
the topic contain function of nervous system, classification of nervous system, neurons anatomy, structural classification of neurons, functional classification of neurons, nerve impulse
Overview ns
The nervous system is divided into the central nervous system (CNS; brain and spinal cord) and peripheral nervous system (PNS). The CNS is organized into the forebrain, brainstem, and cerebellum. It contains neurons and glial cells. The PNS connects the CNS to the body and is divided into somatic and autonomic divisions. It transmits signals between the CNS and peripheral organs.
Unit 13 nervous system
The document summarizes the structure and function of the nervous system. It describes the central nervous system as consisting of the brain and spinal cord. The peripheral nervous system connects the central nervous system to the rest of the body. Neurons are the basic functional units that transmit electrochemical signals throughout the nervous system, allowing for both voluntary and involuntary control of the body.
Human nervous system
This document outlines key concepts related to the nervous system. It defines neurons and their parts, and describes how nerve impulses are transmitted. It explains the structure and function of the central nervous system, including the brain regions and spinal cord. It also outlines the peripheral nervous system, somatic vs autonomic systems, and the sympathetic and parasympathetic divisions. Finally, it provides overviews of the main sensory organs - eye, ear, taste/smell, and touch receptors.
10c; control systems
The document provides an overview of the nervous and endocrine systems that control and regulate functions in the human body. It describes the central and peripheral nervous systems, including neurons, nerve impulses, and neurotransmitters. It also explains the roles of the brain structures like the cerebrum, cerebellum, and brain stem. Additionally, it outlines the endocrine glands like the pituitary, thyroid, adrenals, pancreas and the hormones they secrete to regulate processes in the body.
Unit 11 nervous system
The document discusses the nervous system, including its main components and functions. It is divided into two main parts:
1. The central nervous system (CNS) consisting of the brain and spinal cord. The brain's main parts are the cerebrum, brain stem, cerebellum, and ventricles.
2. The peripheral nervous system (PNS) consisting of 31 pairs of spinal nerves, 12 pairs of cranial nerves, and the autonomic nervous system including the sympathetic and parasympathetic systems.
The nervous system functions to communicate sensory information to the CNS, integrate and interpret stimuli, and respond through motor outputs. It uses neurons, synapses, neurotransmitters, and neuro
Cns 2
The document discusses the nervous system including:
1) It describes the different types of nerve injuries including neurapraxia, axonotmesis, and neurotmesis.
2) It explains the regeneration process after nerve damage, involving macrophages, Schwann cells, and regenerating axons.
3) It provides an overview of the central nervous system, including the brain and spinal cord, and the peripheral nervous system including somatic nerves and the autonomic nervous system.
Nerve supply of head & neck by Dr. Amit Suryawanshi .Oral & Maxillofacial ...
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Hi. This is Dr. Amit T. Suryawanshi. Oral & Maxillofacial surgeon from Pune, India. I am here on slideshare.com to share some of my own presentations presented at various levels in the field of OMFS. Hope this would somehow be helpful to you making your presentations. All the best & your replies are welcomed!
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Nervoussystem 110516205922-phpapp02
- 2. The Nervous System Two main divisions – Central Nervous System (CNS) includes the brain and spinal cord – Peripheral Nervous System (PNS) contains nerves which carry info between the CNS and other organs
- 3. Central Nervous System The brain receives impulses and sends impulses back to the body The spinal cord connects the brain to the body
- 4. CNS: The Brain (UP 5) Cerebrum 3 major regions – Cerebrum – Cerebellum – Brainstem Cerebellum Brainstem
- 5. CNS: The Cerebrum Largest part of the brain Involved in voluntary activities, intelligence, and consciousness Divided into 4 lobes – Frontal - personality – Temporal - auditory – Parietal - senses – Occipital - visual area Parietal Frontal Occipital Temporal
- 6. CNS: Cerebellum & Brainstem Medulla Oblongata Brainstem Cerebellum – balance and coordination Brainstem includes the pons and medulla oblongata – Involuntary functions – heart rate, breathing Cerebellum
- 7. PNS: Peripheral Nervous System All nerves that are NOT part of the brain or spinal cord Two major divisions of the PNS: – Sensory division sends impulses from sense organs (ears, nose, etc.) to the CNS – Motor division send impulses from the CNS to the muscles or glands
- 8. PNS: Motor Divisions Motor division is then divided into the autonomic and somatic nervous systems Somatic System – regulates activities under conscious control such as muscle movement – Also involved with reflexes
- 9. Autonomic Nervous System Regulates automatic, involuntary actions – Parasympathetic Nervous System decreases heart rate and stimulates digestion; “rest and digest” – Sympathetic Nervous System increases heart rate; “fight or flight” These systems have opposite effects
- 10. Cytoplasm Neuron Structure (UP 83) Dendrites Nucleus Cell Body Axon Myelin End Brush Motor End Plate Muscle (effector)
- 11. Neurons Three types: – Sensory: carry impulses from sense organs to CNS – Motor: carry impulses from CNS to muscles/glands – Interneurons: connect motor and sensory neurons
- 12. Neural Impulses Impulses move along a neuron due to electrical changes in the membrane
- 13. Neural Impulses (UP 83) Membrane is polarized, more negative inside Na+ ions enter; membrane depolarizes Repolarization follows depolarization Impulse travels the axon –http://highered.mcgraw-hill.com/olc/dl/120107/bio_d.swf
- 14. Neural Impulses Resting potential – polarized state, negative charge inside membrane Threshold –minimum stimulus needed to activate a neuron Action potential – depolarization & repolarization of membrane Myelin increases rate of impulse
- 15. Synapses Location where one neuron transfers an impulse to a cell – Neuron to neuron – Neuron to muscle/gland Chemicals called neurotransmitters carry signals across a synapse – Acetylcholine and serotonin
- 17. Reflex Arc Reflexes prevent injury Impulse travels from sensory neuron interneuron motor neuron http://www.sumanasinc.com/webcontent/anisamples/nonmajorsbiology/reflexarcs.html
- 18. Reflex Arc (UP 84) Cell Body (Sensory Neuron) Sensory Neuron Synapse Receptors (on dendrites) Association Neuron (interneuron) Synapse Motor Neuron Effector (muscle) Motor End Plates
- 19. Animations Action Potential – http://highered.mcgraw-hill.com/olc/dl/120107/bio_d.swf – http://outreach.mcb.harvard.edu/animations/actionpotential.swf Chemical Synapse – http://www.bishopstopford.com/faculties/science/arthur/synapse.swf – http://highered.mcgraw-hill.com/olc/dl/120107/anim0015.swf – http://outreach.mcb.harvard.edu/animations/synaptic.swf
- 20. Electroencephalogram (EEG) Records electrical activity of the brain Diagnosis of neurological diseases: stroke, epilepsy, tumors, and sleep disorders
- 21. EEG Activity
- 24. Diagnostic Techniques MRI – Magnetic Resonance Imaging uses radio waves and VERY powerful magnets to create images of the brain Used to image soft tissue, not bone or teeth
- 25. MRI of the Brain
- 26. CT Scan Computerized Tomography 3-D x-ray image based on tissue density – Bone appears white, liquids/gases are black, and various tissues are grey Used to diagnose tumors
- 27. PET Scan Positron Emission Tomography Creates images based on the detection of radiation particles Used to detect tumors, seizure disorders, and evaluate patients with memory loss
- 28. Brain Death Irreversible cessation of brain activity for 24 hours so that cardiopulmonary function must be maintained by machine