Quiz 3 - (review document and quiz)

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in which plexus does the ulnar nerve arise

brachial

spinal nerves ___

contain both sensory and motor

the ___ of each spinal nerve innervates the skin and muscles of the back

posterior ramus

the ___ is the area monitored by a single receptor cell

receptive field

John had a viral infection that affected his posterior root ganglia, causing a painful rash. The distribution of the rash corresponded to that of the affected sensory nerves as seen in their dermatomes. This condition is called

shingles

in the condition ___ a virus infects posterior root ganglia, causing a painful rash whose distribution corresponds to that of the affected sensory nerves as seen in their dermatomes

shingles

you suspect your friend has damage to cranial nerve I when he is unable to

smell his food

there are ___ pairs of cranial nerves

12

the spinal cord continues to elongate until about age

4 years

in an adult the conus medullar is is found at about

L1

the trigeminal nerve is indicated by which roman numeral

V

the ___ innervate(s) the ventrolateral body surface, structures in the body wall, and the limbs

anterior ramus

Mary is in an automobile accident and suffers a spinal cord injury. She has lost feeling in her lower body. Her doctor tells her that swelling is compressing a portion of her spinal cord. Which part of her cord is likely to be compressed?

ascending tracts in the lumbar region of her spinal cord

compression of which part of the spinal cord can lead to a loss of feeling in the lower body

ascending tracts in the lumbar region of the spinal cord

the posterior root ganglia mainly contain

cell bodies of sensory neurons

the ___ plexus supplies innervation to the diaphragm

cervical

the face, head, and cheeks are located in a dermatome supplied by nerves from what cervical spinal cord region (true or false)

false - no spinal nerves innervate the dermatome containing the face

the ___ is a strand of fibrous tissue that provides longitudinal support as a component of the coccygeal ligament

film terminale

in order for a sensation to become a perception

it must be received by the somatosensory cortex

the ___ is a spinal tract that relays information concerning pain and temperature to the CNS

lateral spinothalamic

the spinal tract that relays information concerning pain and temperature to the CNS is the

lateral spinothalamic

a viral disease that destroys the neuronal cell bodies of the anterior gray horn will

lead to muscle weakness or paralysis

motor neurons whose cell bodies are within the spinal cord are called ___ neurons

lower motor

a complex interwoven network of nerves is called a

nerve plexus

A nerve plexus is a complex interwoven network of

nerves

___ is a conscious awareness of a sensation

perception

samples of CSF for diagnostic purposes are normally obtained by placing the tip of a needle in the

subarachnoid space

the Roman numeral V indicates the ___ nerve

trigeminal

the cranial nerve that has 3 major branches in the

trigeminal

a viral disease that destroys the neuronal cell bodies of the anterior gray horn will lead to muscle weakness or paralysis (true or false)

true

the anterior ramus innervates the ventrolateral body surface, structures in the body wall, and the limbs

true

damage to the pyramidal cells of the cerebral cortex would directly affect

voluntary motor activity


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