Spinal cord & nerves
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The document discusses the spinal cord and peripheral nervous system. It notes there are 12 cranial nerves and 31 pairs of spinal nerves. It describes the structure of the spinal cord including grey matter, white matter, dorsal and ventral roots. It also outlines the sensory and motor pathways into the spinal cord and discusses neurons, synapses, spinal nerves, and the cervical, brachial, thoracic, lumbar, and sacral plexuses. Finally, it describes the afferent and efferent divisions of the peripheral nervous system including the somatic and autonomic nervous systems and provides an example of a spinal reflex arc.
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Spinal cord and spinal nerves
The spinal cord is protected within the vertebrae and meninges. It acts as a highway for sensory and motor nerve impulses between the brain and spinal nerves. The spinal cord contains 31 pairs of spinal nerves that emerge at different levels to innervate different parts of the body. Sensory information enters the spinal cord via ascending tracts in the posterior region while motor commands exit via descending tracts in the anterior region, allowing for integration of reflexes. Spinal nerves branch into plexuses at certain levels to further distribute nerve signals.
Spinal cord and spinal nerves lab
The spinal cord and spinal nerves are described. The spinal cord contains gray matter in the dorsal, ventral, and lateral horns and white matter tracts. It has 31 pairs of spinal nerves that branch into dorsal and ventral rami. The cervical, brachial, lumbar, and sacral plexuses form from the ventral rami and innervate different regions. The document outlines the anatomy and branches of the spinal cord, spinal nerves, and peripheral nerve plexuses.
Biology 161 lab_8_spinal_cord__spinal_ne1
There are 31 pairs of spinal nerves that arise from the spinal cord and supply the body except the head and neck. They are named according to the vertebrae they exit from. The nerves form plexuses in the cervical, brachial, lumbar, and sacral regions to innervate the limbs. Specific nerves originate from each plexus, such as the median nerve from the brachial plexus to innervate the forearm flexors. Injuries can occur to individual nerves like carpal tunnel syndrome compressing the median nerve in the wrist.
Spinal cord and spinal nerves lab
The spinal cord and spinal nerves are described. The spinal cord contains gray matter in the dorsal, ventral, and lateral horns and white matter tracts. It has 31 pairs of spinal nerves that branch into dorsal and ventral rami. The cervical, brachial, lumbar, and sacral plexuses form from the ventral rami and branch to innervate different regions. The document outlines the anatomy and branches of the spinal cord, spinal nerves, and peripheral nerve plexuses.
The spinal cord anatomy
The spinal cord is the information highway between the brain and body, extending from the foramen magnum to the L1 vertebra. It contains 31 pairs of spinal nerves that receive sensory information and issue motor signals. The spinal cord has an outer protective covering of meninges and contains gray matter in the center for processing information and white matter surrounding it composed of bundled axons that carry signals up and down the spinal cord.
Spinal cord
The spinal cord is a cylindrical structure that extends from the foramen magnum to the L1 vertebra. It acts as the main pathway for information between the brain and the rest of the body. The spinal cord contains gray matter containing neuron cell bodies and white matter containing myelinated axons. Spinal nerves emerge from the spinal cord and branch throughout the body, carrying sensory information to the spinal cord and motor commands from it. The spinal cord is essential for functions like reflexes, sensation and movement.
Spinal cord=dr.khalid latifawan
The spinal cord is part of the central nervous system along with the brain. It conducts impulses between the brain and body and initiates reflexes. The spinal cord is protected by three meninges (membranes) and contains gray matter in an H-shape surrounded by white matter. The gray matter contains motor and sensory neurons that connect to the peripheral nervous system via spinal nerves. The white matter contains ascending and descending tracts that transmit sensory information to the brain and motor commands from the brain.
Spinal cord
The spinal cord is a long, thin, tubular structure that extends from the brain and descends through the vertebral column. It acts as a conduit for motor and sensory nerves throughout the body and is protected by vertebrae. The spinal cord exhibits some functional independence from the brain through reflexes. It is divided into regions that each give rise to spinal nerves which innervate different parts of the body. Major plexuses such as the brachial and lumbar plexuses are formed by the branching of spinal nerves.
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Spinal cord and spinal nerves
The spinal cord is protected within the vertebrae and meninges. It acts as a highway for sensory and motor nerve impulses between the brain and spinal nerves. The spinal cord contains 31 pairs of spinal nerves that emerge at different levels to innervate different parts of the body. Sensory information enters the spinal cord via ascending tracts in the posterior region while motor commands exit via descending tracts in the anterior region, allowing for integration of reflexes. Spinal nerves branch into plexuses at certain levels to further distribute nerve signals.
Spinal cord and spinal nerves lab
The spinal cord and spinal nerves are described. The spinal cord contains gray matter in the dorsal, ventral, and lateral horns and white matter tracts. It has 31 pairs of spinal nerves that branch into dorsal and ventral rami. The cervical, brachial, lumbar, and sacral plexuses form from the ventral rami and innervate different regions. The document outlines the anatomy and branches of the spinal cord, spinal nerves, and peripheral nerve plexuses.
Biology 161 lab_8_spinal_cord__spinal_ne1
There are 31 pairs of spinal nerves that arise from the spinal cord and supply the body except the head and neck. They are named according to the vertebrae they exit from. The nerves form plexuses in the cervical, brachial, lumbar, and sacral regions to innervate the limbs. Specific nerves originate from each plexus, such as the median nerve from the brachial plexus to innervate the forearm flexors. Injuries can occur to individual nerves like carpal tunnel syndrome compressing the median nerve in the wrist.
Spinal cord and spinal nerves lab
The spinal cord and spinal nerves are described. The spinal cord contains gray matter in the dorsal, ventral, and lateral horns and white matter tracts. It has 31 pairs of spinal nerves that branch into dorsal and ventral rami. The cervical, brachial, lumbar, and sacral plexuses form from the ventral rami and branch to innervate different regions. The document outlines the anatomy and branches of the spinal cord, spinal nerves, and peripheral nerve plexuses.
The spinal cord anatomy
The spinal cord is the information highway between the brain and body, extending from the foramen magnum to the L1 vertebra. It contains 31 pairs of spinal nerves that receive sensory information and issue motor signals. The spinal cord has an outer protective covering of meninges and contains gray matter in the center for processing information and white matter surrounding it composed of bundled axons that carry signals up and down the spinal cord.
Spinal cord
The spinal cord is a cylindrical structure that extends from the foramen magnum to the L1 vertebra. It acts as the main pathway for information between the brain and the rest of the body. The spinal cord contains gray matter containing neuron cell bodies and white matter containing myelinated axons. Spinal nerves emerge from the spinal cord and branch throughout the body, carrying sensory information to the spinal cord and motor commands from it. The spinal cord is essential for functions like reflexes, sensation and movement.
Spinal cord=dr.khalid latifawan
The spinal cord is part of the central nervous system along with the brain. It conducts impulses between the brain and body and initiates reflexes. The spinal cord is protected by three meninges (membranes) and contains gray matter in an H-shape surrounded by white matter. The gray matter contains motor and sensory neurons that connect to the peripheral nervous system via spinal nerves. The white matter contains ascending and descending tracts that transmit sensory information to the brain and motor commands from the brain.
Spinal cord
The spinal cord is a long, thin, tubular structure that extends from the brain and descends through the vertebral column. It acts as a conduit for motor and sensory nerves throughout the body and is protected by vertebrae. The spinal cord exhibits some functional independence from the brain through reflexes. It is divided into regions that each give rise to spinal nerves which innervate different parts of the body. Major plexuses such as the brachial and lumbar plexuses are formed by the branching of spinal nerves.
Spinal cord anatomy
The spinal cord begins at the foramen magnum and extends down to the L1-L2 vertebrae. It has 31 segments and is enlarged in the cervical and lumbar regions. It is protected by vertebrae, meninges, and cerebrospinal fluid. The spinal cord contains gray matter with dorsal and ventral horns and white matter tracts. It transmits motor and sensory signals between the brain and body.
Spinal cord
the gross structure of spinal cord, the transverse section of spinal cord , grey and white matter, dorsal root ganglion, formation of spinal nerve, conus medullaris, filum terminal, cauda equana, meningeal layer covering spinal cord, nuclei of anterior horn of gray mater, cell bodies of posterior horn of gray mater, tracts of white matter of spinal cord, ascending and descending tract of spinal cord,
Spinal cord
This document describes the structure and function of the spinal cord. It discusses the external and internal anatomy, including the protective meninges, enlargements in the cervical and lumbar regions, conus medullaris, cauda equina, and filum terminale. Internally, it describes the gray matter, white matter, tracts, and roots. The spinal cord acts as a pathway for sensory and motor impulses and is responsible for reflexes. Ascending tracts conduct sensory information to the brain and descending tracts carry motor commands from the brain.
Spinal cord
The powerpoint was prepared to be presented at university of Health Sciences Cambodia for Neurosurgery, medicine, psychiatry Resident Group.
Spinal plexuses
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Anatomy of the spinal cord
The spinal cord extends from the brainstem down to the lumbar region. It contains gray matter surrounded by white matter and is segmented into cervical, thoracic, lumbar, and sacral regions. The spinal cord transmits sensory information from the body to the brain via dorsal roots and carries motor commands from the brain to the body via ventral roots. Each segment innervates a specific dermatome of skin and muscles. The meninges protect the spinal cord and CSF circulates in the subarachnoid space.
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in detail about spinal cords anatomy, extensions,tracts carries , enlargements and includes histology, applied anatomy.
Spinal cord
The spinal cord runs through the vertebral canal and extends from the foramen magnum to the L2 vertebra. It gives rise to 31 pairs of spinal nerves and has cervical, thoracic, lumbar, sacral and coccygeal regions. The meninges that surround it include the dura mater, arachnoid mater and pia mater. The spinal cord has gray matter containing neuron cell bodies and white matter containing myelinated axons. Descending motor pathways control voluntary movement while ascending sensory pathways transmit proprioceptive and discriminative touch information to the brain.
Spinal cord
The spinal cord extends from the skull to the lower back, and has sensory and motor functions. It contains gray matter in an H-shape containing nuclei, and white matter containing ascending and descending tracts. The spinal cord is surrounded by meninges and has 31 pairs of spinal nerves that connect it to the body. It carries sensory information from the body to the brain via ascending tracts, and carries motor commands from the brain to the body via descending tracts.
Spinal cord and spinal nerves
The all the content in this profile is completed by the teachers, students as well as other health care peoples.
thank you, all the respected peoples, for giving the information to complete this presentation.
this information is free to use by anyone.
Blood supply of brain & spinal cord
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Spinal cord& brainstem
The spinal cord extends the entire length of the vertebral canal at 3 months of development. By birth it reaches L3 and in adults it reaches L1. The dura and arachnoid extend to S2 in adults. The spinal cord has a conus medullaris, cauda equina, and filum terminale. During development, the lumen of the neural tube becomes the ventricular system and central canal of the spinal cord. The gray matter forms from the alar and basal plates separated by the sulcus limitans. The white matter develops from axons myelinating within the spinal cord.
Anatomy (anatomy of spinal cord)
The spinal cord begins at the foramen magnum in the skull and extends down the vertebral canal, protected by vertebrae and surrounded by meninges. It has two enlargements that provide innervation to the upper and lower limbs. The spinal cord contains gray matter in an H-shape surrounded by white matter. Nerve roots exit the gray matter to form spinal nerves. There are 31 pairs of spinal nerves that pass through intervertebral foramina. The filum terminale attaches to the end of the spinal cord for support.
Spinal cord
The document provides detailed information about the anatomy and physiology of the spinal cord. It describes the spinal cord as a cylinder of nerve tissue within the vertebral canal that acts as the information highway between the brain and body. 31 pairs of spinal nerves arise from the spinal cord to innervate different regions of the body. The document outlines the meninges and spaces surrounding the spinal cord, cross-sectional anatomy showing gray matter and white matter tracts, spinal tracts facilitating sensory and motor signals, blood supply, nerves, plexuses, dermatomes, reflexes, and conditions like spinal cord injury and its classifications.
Neuroanatomy spinal cord
The document describes the anatomy and structure of the spinal cord. It details the external structure including its cylindrical shape and location within the vertebral canal surrounded by meninges. Internally, it describes the gray and white matter, including the ascending and descending tracts that carry sensory and motor signals. It also discusses the blood supply, meninges, and some clinical correlations regarding spinal cord injuries.
Spinal Nerve
Spinal nerves emerge from the spinal cord and carry sensory and motor information between the spinal cord and specific body regions. There are 31 pairs of spinal nerves that are categorized based on the region of the spinal cord they emerge from. The anterior rami of spinal nerves form plexuses that further distribute nerves to various body structures, while the thoracic spinal nerves directly innervate the intercostal muscles and skin as intercostal nerves.
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The cervical plexus
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The spinal cord
The spinal cord extends from the brainstem down the back and is protected by the vertebrae. It has gray matter in an H-shape surrounded by white matter. The spinal cord conducts sensory signals to the brain and motor signals from the brain. It also mediates spinal reflexes through circuits in the gray matter without brain involvement. These reflexes provide quick responses to stimuli for protective functions. The internal organization allows sensory input to travel to the brain or mediate reflexes, and motor output from the brain or spinal cord to control muscles and organs.
Spinal cord
The document provides information on the anatomy and structure of the spinal cord. It discusses the following key points:
- The spinal cord is surrounded by three meningeal coverings - dura mater, arachnoid mater, and pia mater. It has cervical and lumbar enlargements.
- Spinal nerves arise in pairs from the spinal cord. Each nerve has a dorsal root containing a ganglion and a ventral root.
- The spinal cord has gray matter on the outside containing nuclei and white matter on the inside. It also contains ascending and descending tracts that connect to the brain.
- Ascending tracts like the anterior and lateral spinothalamic tracts transmit sensory information from
Nervous system
This document provides an overview of the nervous system, including its main components and functions. It discusses the peripheral nervous system, spinal cord, and central nervous system. It describes the morphological and functional subdivisions of the nervous system. Key topics covered include the embryonic origins and histological composition of nervous system structures. Reflex arcs and the organization of the spinal cord are also summarized.
Anatomy nervous system
The document provides an overview of the nervous system, including its main divisions and components. It describes the central nervous system (CNS), which includes the brain and spinal cord. It also describes the peripheral nervous system (PNS), which includes 12 pairs of cranial nerves and 31 pairs of spinal nerves. Finally, it outlines the two main divisions of the autonomic nervous system - the sympathetic and parasympathetic nervous systems - and their roles in involuntary body functions.
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Spinal cord anatomy
The spinal cord begins at the foramen magnum and extends down to the L1-L2 vertebrae. It has 31 segments and is enlarged in the cervical and lumbar regions. It is protected by vertebrae, meninges, and cerebrospinal fluid. The spinal cord contains gray matter with dorsal and ventral horns and white matter tracts. It transmits motor and sensory signals between the brain and body.
Spinal cord
the gross structure of spinal cord, the transverse section of spinal cord , grey and white matter, dorsal root ganglion, formation of spinal nerve, conus medullaris, filum terminal, cauda equana, meningeal layer covering spinal cord, nuclei of anterior horn of gray mater, cell bodies of posterior horn of gray mater, tracts of white matter of spinal cord, ascending and descending tract of spinal cord,
Spinal cord
This document describes the structure and function of the spinal cord. It discusses the external and internal anatomy, including the protective meninges, enlargements in the cervical and lumbar regions, conus medullaris, cauda equina, and filum terminale. Internally, it describes the gray matter, white matter, tracts, and roots. The spinal cord acts as a pathway for sensory and motor impulses and is responsible for reflexes. Ascending tracts conduct sensory information to the brain and descending tracts carry motor commands from the brain.
Spinal cord
The powerpoint was prepared to be presented at university of Health Sciences Cambodia for Neurosurgery, medicine, psychiatry Resident Group.
Spinal plexuses
Here is the ppt about spinal plexuses, the brachial plexus,cervical plexus,lumbosacral plexus and the applied anatomy of those plexus
Anatomy of the spinal cord
The spinal cord extends from the brainstem down to the lumbar region. It contains gray matter surrounded by white matter and is segmented into cervical, thoracic, lumbar, and sacral regions. The spinal cord transmits sensory information from the body to the brain via dorsal roots and carries motor commands from the brain to the body via ventral roots. Each segment innervates a specific dermatome of skin and muscles. The meninges protect the spinal cord and CSF circulates in the subarachnoid space.
Spinal cord Anatomy
in detail about spinal cords anatomy, extensions,tracts carries , enlargements and includes histology, applied anatomy.
Spinal cord
The spinal cord runs through the vertebral canal and extends from the foramen magnum to the L2 vertebra. It gives rise to 31 pairs of spinal nerves and has cervical, thoracic, lumbar, sacral and coccygeal regions. The meninges that surround it include the dura mater, arachnoid mater and pia mater. The spinal cord has gray matter containing neuron cell bodies and white matter containing myelinated axons. Descending motor pathways control voluntary movement while ascending sensory pathways transmit proprioceptive and discriminative touch information to the brain.
Spinal cord
The spinal cord extends from the skull to the lower back, and has sensory and motor functions. It contains gray matter in an H-shape containing nuclei, and white matter containing ascending and descending tracts. The spinal cord is surrounded by meninges and has 31 pairs of spinal nerves that connect it to the body. It carries sensory information from the body to the brain via ascending tracts, and carries motor commands from the brain to the body via descending tracts.
Spinal cord and spinal nerves
The all the content in this profile is completed by the teachers, students as well as other health care peoples.
thank you, all the respected peoples, for giving the information to complete this presentation.
this information is free to use by anyone.
Blood supply of brain & spinal cord
The document summarizes the arterial blood supply and venous drainage of the brain and spinal cord. It describes the two main arterial systems - the internal carotid and vertebral arteries - and how they anastomose to form the Circle of Willis. It details the branches and territories supplied by the major cerebral and spinal arteries. It also outlines the internal and external cerebral veins that drain the brain into the dural venous sinuses, and the internal and external vertebral venous plexuses that drain the spinal cord.
Spinal cord& brainstem
The spinal cord extends the entire length of the vertebral canal at 3 months of development. By birth it reaches L3 and in adults it reaches L1. The dura and arachnoid extend to S2 in adults. The spinal cord has a conus medullaris, cauda equina, and filum terminale. During development, the lumen of the neural tube becomes the ventricular system and central canal of the spinal cord. The gray matter forms from the alar and basal plates separated by the sulcus limitans. The white matter develops from axons myelinating within the spinal cord.
Anatomy (anatomy of spinal cord)
The spinal cord begins at the foramen magnum in the skull and extends down the vertebral canal, protected by vertebrae and surrounded by meninges. It has two enlargements that provide innervation to the upper and lower limbs. The spinal cord contains gray matter in an H-shape surrounded by white matter. Nerve roots exit the gray matter to form spinal nerves. There are 31 pairs of spinal nerves that pass through intervertebral foramina. The filum terminale attaches to the end of the spinal cord for support.
Spinal cord
The document provides detailed information about the anatomy and physiology of the spinal cord. It describes the spinal cord as a cylinder of nerve tissue within the vertebral canal that acts as the information highway between the brain and body. 31 pairs of spinal nerves arise from the spinal cord to innervate different regions of the body. The document outlines the meninges and spaces surrounding the spinal cord, cross-sectional anatomy showing gray matter and white matter tracts, spinal tracts facilitating sensory and motor signals, blood supply, nerves, plexuses, dermatomes, reflexes, and conditions like spinal cord injury and its classifications.
Neuroanatomy spinal cord
The document describes the anatomy and structure of the spinal cord. It details the external structure including its cylindrical shape and location within the vertebral canal surrounded by meninges. Internally, it describes the gray and white matter, including the ascending and descending tracts that carry sensory and motor signals. It also discusses the blood supply, meninges, and some clinical correlations regarding spinal cord injuries.
Spinal Nerve
Spinal nerves emerge from the spinal cord and carry sensory and motor information between the spinal cord and specific body regions. There are 31 pairs of spinal nerves that are categorized based on the region of the spinal cord they emerge from. The anterior rami of spinal nerves form plexuses that further distribute nerves to various body structures, while the thoracic spinal nerves directly innervate the intercostal muscles and skin as intercostal nerves.
Brachialplexusinjuries
This document discusses brachial plexus injuries, including their etiology, diagnosis, and management. It provides details on the anatomy of the brachial plexus and its branches. Injuries are classified as upper (Erb's palsy) or lower (Klumpke's palsy) lesions. Diagnostic tests include imaging, EMG, and nerve conduction studies. Conservative management is used for neonatal injuries, while surgical options for adults include nerve grafting, transfers, and repairs. The document outlines various surgical techniques and notes advances in treating preganglionic injuries.
The cervical plexus
The cervical plexus is formed from the anterior rami of C1-C4 nerves. It has cutaneous branches that innervate the skin of the head and neck, and muscular branches that innervate neck muscles. The most important branch is the phrenic nerve, formed from C3-C5, which solely innervates the diaphragm, the main breathing muscle.
The spinal cord
The spinal cord extends from the brainstem down the back and is protected by the vertebrae. It has gray matter in an H-shape surrounded by white matter. The spinal cord conducts sensory signals to the brain and motor signals from the brain. It also mediates spinal reflexes through circuits in the gray matter without brain involvement. These reflexes provide quick responses to stimuli for protective functions. The internal organization allows sensory input to travel to the brain or mediate reflexes, and motor output from the brain or spinal cord to control muscles and organs.
Spinal cord
The document provides information on the anatomy and structure of the spinal cord. It discusses the following key points:
- The spinal cord is surrounded by three meningeal coverings - dura mater, arachnoid mater, and pia mater. It has cervical and lumbar enlargements.
- Spinal nerves arise in pairs from the spinal cord. Each nerve has a dorsal root containing a ganglion and a ventral root.
- The spinal cord has gray matter on the outside containing nuclei and white matter on the inside. It also contains ascending and descending tracts that connect to the brain.
- Ascending tracts like the anterior and lateral spinothalamic tracts transmit sensory information from
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This document provides an overview of the nervous system, including its main components and functions. It discusses the peripheral nervous system, spinal cord, and central nervous system. It describes the morphological and functional subdivisions of the nervous system. Key topics covered include the embryonic origins and histological composition of nervous system structures. Reflex arcs and the organization of the spinal cord are also summarized.
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The document provides an overview of the nervous system, including its main divisions and components. It describes the central nervous system (CNS), which includes the brain and spinal cord. It also describes the peripheral nervous system (PNS), which includes 12 pairs of cranial nerves and 31 pairs of spinal nerves. Finally, it outlines the two main divisions of the autonomic nervous system - the sympathetic and parasympathetic nervous systems - and their roles in involuntary body functions.
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The nervous system has two main divisions: the central nervous system (CNS) and the peripheral nervous system (PNS). The autonomic nervous system (ANS) is a division of the PNS and controls involuntary body functions. It has two branches - the sympathetic and parasympathetic systems. The sympathetic system activates the fight or flight response while the parasympathetic system activates the rest and digest response. Both systems involve a two-neuron chain with a preganglionic neuron originating in the CNS and a postganglionic neuron that releases neurotransmitters like acetylcholine and norepinephrine.
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The autonomic nervous system controls internal organs and glands. It has both sympathetic and parasympathetic divisions. The sympathetic division uses norepinephrine and epinephrine to activate the fight or flight response. The parasympathetic uses acetylcholine for rest and digest functions. Both have preganglionic and postganglionic neurons. The autonomic nervous system regulates vital involuntary functions like heart rate, breathing, digestion and pupillary response.
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4. Describe the influences of the Pneumotaxic and Apneustic centers
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Spinal cord & nerves
- 1. Spinal Cord Ch 13 & Nerves
- 3. Peripheral Nervous System cranial nerves- 12 pr spinal nerves- 31 pr
- 4. The Spinal Cord ventral root pia mater dura mater arachnoid grey matter dorsal root white matter spinal nerves
- 5. The Spinal Cord spinal cord spinal nerve vertebra
- 6. Nerve Pathways into the Spinal Cord sensory pathway motor pathway
- 9. Spinal Cord
- 10. Spinal Nerves
- 11. Spinal Nerves
- 12. Cervical Plexus
- 13. Brachial Plexus
- 15. Lumbar Plexus
- 16. Sacral Plexus
- 18. Spinal Reflex Arc patellar ligament stretch receptor motor neuron sensory neuron motor neuron interneuron
Editor's Notes
- Interaction Between Neurons
- A Typical Motor Neuron