BIOD152 UPDATED ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE
●● This layer of the meninges is tightly attached to the brain.
Answer: Pia mater (Menix)
●● The _______ fissure separates the right and left cerebral
hemispheres.
Answer: median
●● The ______ fissure separates the cerebrum from the cerebellum.
Answer: Transverse
●● Describe the function of the brain ventricles.
Answer: There are four ventricles in the interior of the brain, chambers
filled with cerebrospinal fluid which is produced there. Once formed the
CSF circulates through the ventricles and into the subarachnoid space
bathing and floating the brain.
●● What is the purpose of the blood-brain barrier? Describe its
maintenance from a cellular level.
, Answer: The blood-brain barrier is a diffusion barrier which prevents
most particles from entering the central nervous system tissue, keeping
the brain and spinal cord separate from general blood circulation. The
blood-brain barrier is formed by the relatively impermeable brain
capillaries, due to the glial cells astrocytes. Maintenance of the blood-
brain-barrier is important to provide a stable chemical environment for
the nervous system.
●● All the following are functions of the hypothalamus except:
Answer: Relays sensory impulses to the cerebrum
●● This ventricle is located anterior to the cerebellum.
Answer: fourth
●● What is the largest portion of the brain?
Answer: Cerebrum
●● This region of the brain acts to coordinate multiple sources of
sensory information.
Answer: Association area
●● This region of the brain controls decision making skills
Answer: Frontal lobe
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE
●● This layer of the meninges is tightly attached to the brain.
Answer: Pia mater (Menix)
●● The _______ fissure separates the right and left cerebral
hemispheres.
Answer: median
●● The ______ fissure separates the cerebrum from the cerebellum.
Answer: Transverse
●● Describe the function of the brain ventricles.
Answer: There are four ventricles in the interior of the brain, chambers
filled with cerebrospinal fluid which is produced there. Once formed the
CSF circulates through the ventricles and into the subarachnoid space
bathing and floating the brain.
●● What is the purpose of the blood-brain barrier? Describe its
maintenance from a cellular level.
, Answer: The blood-brain barrier is a diffusion barrier which prevents
most particles from entering the central nervous system tissue, keeping
the brain and spinal cord separate from general blood circulation. The
blood-brain barrier is formed by the relatively impermeable brain
capillaries, due to the glial cells astrocytes. Maintenance of the blood-
brain-barrier is important to provide a stable chemical environment for
the nervous system.
●● All the following are functions of the hypothalamus except:
Answer: Relays sensory impulses to the cerebrum
●● This ventricle is located anterior to the cerebellum.
Answer: fourth
●● What is the largest portion of the brain?
Answer: Cerebrum
●● This region of the brain acts to coordinate multiple sources of
sensory information.
Answer: Association area
●● This region of the brain controls decision making skills
Answer: Frontal lobe
