BIOL 251 Exam
(2026)
Comprehensive
Questions and
Verified Answers
(Detailed &
Elaborated) Actual
Exam 2026
What is the flow of CSF around the
CNS? - correct answer=✔✔Continually
flows through and around the CNS.
1
,CSF takes the following route through
the four ventricles of the brain: - correct
answer=✔✔1) CSF is produced in the
choroid plexus
2) CSF passes from the lateral
ventricles, through two holes called
the interventricular foramina, and into
the third ventricle
3) CSF passes through a connecting
structure called the cerebral aqueduct
and into the fourth ventricle
4) CSF exits the fourth ventricle and
drains into the subarachnoid space,
then the central canal
Where do the ascending and
descending tracts pass through? -
correct answer=✔✔All nerve fibers
passing through the brain to the spinal
2
,cord pass through the medulla
oblongata.
The medulla contains groups of
neurons that are associated with ____
functions. - correct answer=✔✔Sensory
and motor functions
True or false: the medulla does not
integrate sensory information or
regulate motor function on its own, but
it contributes to regulate the sensory
or motor functions. - correct
answer=✔✔True
What type of specific, important
centers (nuclei) does the medulla
have? - correct answer=✔✔Cardiac
center (regulates the rate and force of
heartbeats), vasomotor center
3
, (regulate blood pressure and flow),
respiratory centers (regulate rhythm
and depth of breathing).
Pons: do descending and ascending
tracts go through here? - correct
answer=✔✔Yes
Pons have nuclei: what are they
related to? - correct answer=✔✔Sleep,
respiration, and posture
What are the cerebral peduncles? -
correct answer=✔✔The midbrain is
made of these, which are two stalks
that anchor the cerebrum to the
brainstem.
4
(2026)
Comprehensive
Questions and
Verified Answers
(Detailed &
Elaborated) Actual
Exam 2026
What is the flow of CSF around the
CNS? - correct answer=✔✔Continually
flows through and around the CNS.
1
,CSF takes the following route through
the four ventricles of the brain: - correct
answer=✔✔1) CSF is produced in the
choroid plexus
2) CSF passes from the lateral
ventricles, through two holes called
the interventricular foramina, and into
the third ventricle
3) CSF passes through a connecting
structure called the cerebral aqueduct
and into the fourth ventricle
4) CSF exits the fourth ventricle and
drains into the subarachnoid space,
then the central canal
Where do the ascending and
descending tracts pass through? -
correct answer=✔✔All nerve fibers
passing through the brain to the spinal
2
,cord pass through the medulla
oblongata.
The medulla contains groups of
neurons that are associated with ____
functions. - correct answer=✔✔Sensory
and motor functions
True or false: the medulla does not
integrate sensory information or
regulate motor function on its own, but
it contributes to regulate the sensory
or motor functions. - correct
answer=✔✔True
What type of specific, important
centers (nuclei) does the medulla
have? - correct answer=✔✔Cardiac
center (regulates the rate and force of
heartbeats), vasomotor center
3
, (regulate blood pressure and flow),
respiratory centers (regulate rhythm
and depth of breathing).
Pons: do descending and ascending
tracts go through here? - correct
answer=✔✔Yes
Pons have nuclei: what are they
related to? - correct answer=✔✔Sleep,
respiration, and posture
What are the cerebral peduncles? -
correct answer=✔✔The midbrain is
made of these, which are two stalks
that anchor the cerebrum to the
brainstem.
4
