_______________________ S H E E T EXERCISE 21 Print Form Spinal Cord‚ Spinal Nerves‚ and the Autonomic Nervous System Anatomy of the Spinal Cord 1. Match each anatomical term in the key to the descriptions given below. Key: a. D C B A cauda equina 1. 2. 3. 4. b. conus medullaris c. filum terminale d. foramen magnum most superior boundary of the spinal cord meningeal extension beyond the spinal cord terminus spinal cord terminus collection of spinal nerves traveling in the vertebral canal
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#4 – Chapters 12‚ 13‚ 14 & 15 1) What would normally be found within the central canal of the spinal cord? a) Blood b) Myelin c) Cerebrospinal fluid d) Air e) Gray matter 2) The filum terminale is a) The roots of spinal nerves hanging inferiorly from the end of the spinal cord in the vertebral column b) An indentation on the dorsal side of the spinal cored c) The tapered end of the spinal cord d) An extension of the pia mater that anchors the spinal cord to the coccyx e) Where the
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outside or surface of the cord. It connects the cord and the brain and is made up of nerve fibres. White matter contains motor fibres which run down from the motor centre of the brain‚ the cerebrum and the cerebellum to the motor cells of the cord Sensory fibres also run up the cord from the sensory cells of the cord to the sensory centre of the brain. 2. ANTERIOR HORNS – The anterior horns of the spinal cord is the front grey matter section of the spinal cord. It contains motor neurons
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Spinal cord injuries If the spinal cord is damaged in an accident‚ the sections below the injury will be cut off from the circuit of information to and from your brain. This means‚ all nerves - and all body parts - linked to these areas of the spinal cord will also be disconnected from your brain and will stop functioning. Well protected To minimise the risk of such an injury‚ your spinal cord is well protected: Three tough envelopes called meninges surround your spinal cord A clear fluid‚ that
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had meningitis. Meningitis is caused by an infection of the cerebrospinal fluid resulting in inflammation of the meninges. 1. What are the meninges? They are three membranous layers that surround the brain and spinal cord. 2. Name the meningeal layers that surround the brain and spinal cord and explain the relative location of each. Dura mater‚ arachnoid mater‚ and pia mater. Dura mater is the tough‚ fibrous outermost layer that lines the inside of the cranium‚ or sits next to the epidural space
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Spinal Cord Injury * Short Case Study #3 1. Describe the functional anatomy of the spinal cord using the following terms: white matter‚ gray matter‚ tracts‚ roots‚ and spinal nerves. * White matter is one of the two components of the central nervous system‚ and it consists of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another as well as in between the cerebrum and lower brain centers. Grey matter contains neural cell bodies. Unlike
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anatomy of the spinal cord is very unique. Externally‚ it is initially surrounded by the vertebral column. The vertebral column is divided into the cervical‚ thoracic‚ lumbar‚ sacral‚ and coccygeal regions. These different vertebrae protect the spinal cord from damage and form a type of shell around it. The spinal cord appears as a long‚ thin cord of nerves. The peripheral nerves that extend out to many parts of the body arise from the spinal cords thirty-one segmental pairs of nerves. The cervical
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Running head: SPINAL CORD INJURY Spinal Cord Injury Shannon G. Johnston‚ RN‚ CEN Liberty University Abstract There are many types of spinal cord injuries (SCI). Patients with SCI can symptoms that range from mild neurologic impairment (such as numbness and tingling of extremities or neck pain) to devastating total body paralysis depending on the extent of damage and where in the spinal cord the damage occurs. Management of airway‚ breathing and circulation are key with SCI patients‚ as
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Structure: The spinal cord is a white‚ soft and cord (rope) like material running through the backbone. The internal structure of the spinal cord is much simpler and more uniform throughout its many parts than that of the brain. No matter where it is sectioned‚ it gives the same general appearance. The interior of the spinal cord looks grey because it is filled with neurons without having myelin sheath in their axons. There are thirty-one pairs of peripheral spinal nerves connected to the spinal cord. The
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Stenosis means "closing in" or "choking". Spinal stenosis describes a condition in which the nerves in the spinal canal are closed in‚ or compressed. The spinal canal is the hollow vertical hole formed by the bones of the spinal column. Anything that causes this bony hole to shrink can squeeze the nerves inside. This narrowing can irritate the nerve roots that branch out from the spinal cord‚ or it can squeeze and irritate the spinal cord itself. This may cause pain‚ numbness‚ or weakness‚ most
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