1|Pag e
BIOS 252 EXAM 2 WEEKS 3, 4 AND 5|| LATELY
UPDATED QUESTIONS AND 100% CORRECT
ANSWERS ALREADY GRADED A+|| LATEST AND
COMPLETE UPDATE 2025 WITH VERIFIED
SOLUTIONS|| ASSURED PASS!!
regions of the spinal cord - ANSWER: cervical, thoracic, lumbar, sacral
ulnar nerve - ANSWER: nerve to upper limbs
sacral plexus - ANSWER: nerve plexus associated with the lower lumbar and
pelvic region
conus medullaris - ANSWER: cord tapers to a point inferior to lumbosacral
enlargement
cauda equina - ANSWER: bundle of nerve roots that occupy the vertebral canal
from L2 to S5
dura mater - ANSWER: thick, outermost layer of the meninges surrounding and
protecting the brain and spinal cord
arachnoid mater - ANSWER: weblike middle layer of the three meninges
pia mater - ANSWER: the delicate innermost membrane enveloping the brain and
spinal cord.
Gray matter contains - ANSWER: cell bodies
, 2|Pag e
white matter contains - ANSWER: axons and myelin
gray matter function - ANSWER: Site of information processing, synaptic
integration
white matter function - ANSWER: carry signals from one part of the CNS to
another
ascending tracts - ANSWER: carry sensory information to the brain
desceding tracts - ANSWER: carry motor information down to effectors
types of neurons involved with ascending tracts - ANSWER: first order, second
order, third order
ascending tracts pathways - ANSWER: spinocerebellar, spinothalamic, dorsal
column
descending tracts - ANSWER: carry motor commands to spinal cord
types of neurons involved in descending tracts - ANSWER: upper motor and
lower motor neuron
descending tract pathways - ANSWER: direct to skeletal muscle, indirect to
cardiac/smooth muscle
BIOS 252 EXAM 2 WEEKS 3, 4 AND 5|| LATELY
UPDATED QUESTIONS AND 100% CORRECT
ANSWERS ALREADY GRADED A+|| LATEST AND
COMPLETE UPDATE 2025 WITH VERIFIED
SOLUTIONS|| ASSURED PASS!!
regions of the spinal cord - ANSWER: cervical, thoracic, lumbar, sacral
ulnar nerve - ANSWER: nerve to upper limbs
sacral plexus - ANSWER: nerve plexus associated with the lower lumbar and
pelvic region
conus medullaris - ANSWER: cord tapers to a point inferior to lumbosacral
enlargement
cauda equina - ANSWER: bundle of nerve roots that occupy the vertebral canal
from L2 to S5
dura mater - ANSWER: thick, outermost layer of the meninges surrounding and
protecting the brain and spinal cord
arachnoid mater - ANSWER: weblike middle layer of the three meninges
pia mater - ANSWER: the delicate innermost membrane enveloping the brain and
spinal cord.
Gray matter contains - ANSWER: cell bodies
, 2|Pag e
white matter contains - ANSWER: axons and myelin
gray matter function - ANSWER: Site of information processing, synaptic
integration
white matter function - ANSWER: carry signals from one part of the CNS to
another
ascending tracts - ANSWER: carry sensory information to the brain
desceding tracts - ANSWER: carry motor information down to effectors
types of neurons involved with ascending tracts - ANSWER: first order, second
order, third order
ascending tracts pathways - ANSWER: spinocerebellar, spinothalamic, dorsal
column
descending tracts - ANSWER: carry motor commands to spinal cord
types of neurons involved in descending tracts - ANSWER: upper motor and
lower motor neuron
descending tract pathways - ANSWER: direct to skeletal muscle, indirect to
cardiac/smooth muscle
