PGY 502 End term Exam Questions With 100%
Verified Answers!!
gray matter consists of
cell bodies
decussate
to cross over to the other side of the brain
occipital lobe contains which cortex
visual cortex
parietal lobe contains which cortex
somatosensory cortex
temporal lobe contains which cortex
auditory cortex
frontal lobe contains which cortex
motor cortex
area 17 contains which cortex
visual cortex
area 4 contains which cortex
motor cortex
the cortex ususally has how many layers?
6, except motor cortex has 5
Where are Betz cells found?
primary motor cortex
,the hippocampus function
memory
basal ganglia is made up of
- striatum (caudate nucleus, putamen)
- globus pallidus
the hypothalamus regulates
eating/drinking
temperature
3 structures making up brainstem
midbrain
pons
medulla
gray matter of spinal cord consists of
-sensory neurons (dorsal)
-mottoneurons (ventral)
-interneurons
which virus is known for laying dormant in the dorsal root ganglion until it becomes active
and travels down the sensory nerve fibers to the skin?
varicella virus -> shingles
where in the spinal cord do you find alpha-motoneurons?
ventral horn -> exits ventral root
touch sensation varies in both __________ and ____________
amplitude and frequency
crude touch
You know something has touched you, but can't determine its location, shape, size or texture.
, Abeta fibers
-fast
-myelinated
-discriminative touch
Adelta fibers
-fast
-myelinated
-pain, temperature
C fibers
-slow
-UNmyelinated, smaller diameter
-pain, temperature, itch, emotional touch
hair follicle receptors
-spiral nerve endings around each hair bulb
-mechanoreceptors simulated by bending a hair
temporal summation
^ stimulus strength -> ^ receptor potential -> ^ frequency of action potential -> ^ intensity of
sensation
rapidly adapting receptors
-AP only at onset & offset of stimulus
-sense rapidly changing stimuli
-phasic receptor
phasic receptor (rapidly adapting)
a receptor in which the frequency of action potentials drops rapidly as stimulation is maintained
slowly adapting receptors
Verified Answers!!
gray matter consists of
cell bodies
decussate
to cross over to the other side of the brain
occipital lobe contains which cortex
visual cortex
parietal lobe contains which cortex
somatosensory cortex
temporal lobe contains which cortex
auditory cortex
frontal lobe contains which cortex
motor cortex
area 17 contains which cortex
visual cortex
area 4 contains which cortex
motor cortex
the cortex ususally has how many layers?
6, except motor cortex has 5
Where are Betz cells found?
primary motor cortex
,the hippocampus function
memory
basal ganglia is made up of
- striatum (caudate nucleus, putamen)
- globus pallidus
the hypothalamus regulates
eating/drinking
temperature
3 structures making up brainstem
midbrain
pons
medulla
gray matter of spinal cord consists of
-sensory neurons (dorsal)
-mottoneurons (ventral)
-interneurons
which virus is known for laying dormant in the dorsal root ganglion until it becomes active
and travels down the sensory nerve fibers to the skin?
varicella virus -> shingles
where in the spinal cord do you find alpha-motoneurons?
ventral horn -> exits ventral root
touch sensation varies in both __________ and ____________
amplitude and frequency
crude touch
You know something has touched you, but can't determine its location, shape, size or texture.
, Abeta fibers
-fast
-myelinated
-discriminative touch
Adelta fibers
-fast
-myelinated
-pain, temperature
C fibers
-slow
-UNmyelinated, smaller diameter
-pain, temperature, itch, emotional touch
hair follicle receptors
-spiral nerve endings around each hair bulb
-mechanoreceptors simulated by bending a hair
temporal summation
^ stimulus strength -> ^ receptor potential -> ^ frequency of action potential -> ^ intensity of
sensation
rapidly adapting receptors
-AP only at onset & offset of stimulus
-sense rapidly changing stimuli
-phasic receptor
phasic receptor (rapidly adapting)
a receptor in which the frequency of action potentials drops rapidly as stimulation is maintained
slowly adapting receptors
