1. The outer cortex of the spinal cord consists of gray/white) matter, whereas t

Question

1. The outer cortex of the spinal cord consists of gray/white) matter, whereas the Inner medula of the spinal cord consists of 2. Match the type of neuron listed in column A with the corresponding part of the spinal cord where the soma of the neuron may be found, (gray/white) matter. listed in column B. Column A Column B anterior gray horn b. lateral gray horn c.posterior gray horn d posterior root ganglion 1. interneuron 2. somatic motor neuron q -3. somatic sensory neuron 4. sympathetic motor neuron (cervical/lumbar) enlargement of the spinal cord is associated with the upper limbs, whereas the (cervicallumbar) enlargement is associated with the 3. The a/lumbar) enlargement is associated with the lower limbs. Exercise 16.2: Gross Anatomy of the Spinal Cord (centrally 4. White matter is located peripherally) within the spinal cord. 5. Which of the following is a structure that consists of posterior and anterior roots extending from the inferior end of the spinal cord into the low vertebral canal and the sacral canal? (circle one.) cauda equina b. conus medullaris c. filum terminale d. posterior root ganglion Exercise 16.3: The Cervical Plexus O 6. The cervical plexus is formed from the anterior rami of these spinal nerves. (Circle one.) a. C-C, C-c Exercise 16.4: The Brachial Plexus Rank the levels of organization ofthe brachial plexus in order, beginning with anterior rami and ending with branches. a. branches b. cords c. divisions d.roots (anterior raml e. trunks 8. The ulnar nerve forms from the medial/lateral) cord of the brachial plexus.

Explanation / Answer

1) White matter

Grey matter

2) Anterior grey horn- Somatic motor neuron

Lateral grey horn- Interneurons

Posterior grey horn- Somatic sensory neuron

Posterior root ganglion- Sympathetic motor neuron

3) Cervical

Lumbar

4) Centrally

Peripherally

5) a. Cauda equina

6) b. C1 to C4

7) d. roots, e. trunks, c. division, b. cords, a. branches

8) Medial

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