Spinal Cord and Nerves

Most superficial layer of the meninges

• Dura mater

• Arachnoid mater

• Pia mater

Very vascular, supplies the spinal cord with oxygen and nutrients

• Dura mater

• Arachnoid mater

• Pia mater

The superior border of this vertebra is the last in which the spinal cord passes as a single body before splitting into the cauda equina

• L5

• L4

• L3

• L2

Sensory input is conveyed from receptors to the...

• Anterior grey horns

• Posterior grey horns

• Lateral grey horns

• Superior tracts

This sensory tract conveys nerve impulses for pain, warmth, itch, and crude touch

• Sensory

• Somatic

• Spinothalamic

• Posterior column

How many pairs of cervical nerves?

• 7

• 8

• 6

• 10

How many pairs of thoracic nerves?

• 10

• 11

• 12

• 13

The nerves of this part of the spine provide bowel and bladder control, sexual function, and rectal sensation

• Lumbar

• Sacrum

• Coccyx

• Thorax

The ulnar nerve branches from which plexus?

• Cervical

• Brachial

• Thoracic

• Coccygeal

Which of the following is not a plexus

• Cervical

• Brachial

• Thoracic

• Lumbar