Quiz 3 - (review document and quiz)
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