Chapter 13 Study Guide

 

spinal cord

meninges

pia mater

arachnoid mater

dura mater

subarachnoid space

subdural space

epidural space

the spinal cord extends to L2 (adults)

cauda equina

31 pairs of spinal nerves

anterior or ventral root

posterior or dorsal root

posterior or dorsal root ganglion

nucleus

gray matter

white matter

anterior (ventral) gray horns

motor neurons cell bodies and motor nuclei

posterior (dorsal) gray horns

sensory nuclei

tracts

sensory (ascending) tracts

motor (descending) tracts

reflex

spinal reflex

cranial reflex

reflex arc

sensory receptor

sensory neuron

integrating center

motor neuron

effector

somatic reflex

autonomic (visceral) reflex

stretch reflex

muscle spindles

posterior (dorsal) ramus

anterior (ventral) ramus

cervical plexus supplies what region of the body?

phrenic nerve

brachial plexus supplies what region of the body?

lumbar plexus supplies what region of the body?

sacral plexus supplies what region of the body?

sciatic nerve

intercostal or thoracic nerves

dermatome