Spinal nerves

Question 1

What is the cauda equina?

Answer 1

The continuation of spinal nerves after the lumbar region of the spinal cord

Question 2

What forms the spinal root?

Answer 2

Dorsal and ventral roots combining

Question 3

What are sensory neurons?

Answer 3

Neurons that carry impulses from receptor cells to CNS via dorsal root

Question 4

What are motor neurons?

Answer 4

Neurons that carry impulses from the CNS to effectors via ventral root

Question 5

Where do spinal nerves exit the spinal cord?

Answer 5

Intervertebral foramina

Question 6

Can one spinal nerve be associated with more than one myotome/dermatome?

Answer 6

NO

Question 7

What are the 4 types of spinal nerves?

Answer 7

1. Somatic motor
2. Somatic sensory
3. Visceral sensory
4. Visceral motor

Question 8

What do somatic motor neurons do?

Answer 8

Motor to skeletal muslces

Question 9

What do somatic sensory neurons do?

Answer 9

Sensory from general cutaneous receptors and proprioceptors of skeletal muscles, tendons, joints, vision, and hearing

Question 10

What do visceral motor neurons do?

Answer 10

motor to smooth muscle, cardiac muscles, and glands

Question 11

What do visceral sensory neurons do?

Answer 11

Sensory from receptors in viscera