BIOD 152 Module 2 EXAM QUESTIONS
AND ANSWERS6
The _______ fissure separates the right and left cerebral hemispheres. - ANSWERS median
The ______ fissure separates the cerebrum from the cerebellum. - ANSWERS Transverse
This is the most superficial layer of the brain meninges - ANSWERS Dura Mater (Menix)
This layer of the meninges is tightly attached to the brain. - ANSWERS Pia mater (Menix)
Describe the function of the brain ventricles. - ANSWERS 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. -
ANSWERS 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: - ANSWERS Relays sensory impulses
to the cerebrum
This ventricle is located anterior to the cerebellum. - ANSWERS fourth
, What is the largest portion of the brain? - ANSWERS Cerebrum
This region of the brain acts to coordinate multiple sources of sensory information. - ANSWERS
Association area
This region of the brain controls decision making skills - ANSWERS Frontal lobe
A patient is having difficulty understanding language but is sill able to speak fluently. The
patient's dermatomes are intact. Which area of the brain is most likely damaged? - ANSWERS
Wernicke's area
A patient is having difficulty producing speech sounds, but other motor movements are normal.
Which area of the brain is most likely damaged? - ANSWERS Broca's area
Describe how memories are stored and retrieved in the brain. Include a specific brain region. -
ANSWERS Memories are stored throughout the cerebral hemispheres. The hippocampus acts
as a memory center to help with memory storage and retrieval. The involvement of the limbic
system explains why emotionally charged events result in our most vivid memories.
What is muscle tone and how is it maintained? - ANSWERS Muscle tone is the degree at which
muscles remain partially contracted while at rest. Muscle tone is continuously monitored and
maintained by the cerebellum to keep bones and joints in place.
Which statement is false concerning the brainstem? - ANSWERS The midbrain helps regulate
breathing
Which of the following is true concerning the cerebellum? - ANSWERS The anterior lobe
receives information from the body trunk.
Which is most likely a symptom of ALS? - ANSWERS Impaired ability to swallow
AND ANSWERS6
The _______ fissure separates the right and left cerebral hemispheres. - ANSWERS median
The ______ fissure separates the cerebrum from the cerebellum. - ANSWERS Transverse
This is the most superficial layer of the brain meninges - ANSWERS Dura Mater (Menix)
This layer of the meninges is tightly attached to the brain. - ANSWERS Pia mater (Menix)
Describe the function of the brain ventricles. - ANSWERS 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. -
ANSWERS 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: - ANSWERS Relays sensory impulses
to the cerebrum
This ventricle is located anterior to the cerebellum. - ANSWERS fourth
, What is the largest portion of the brain? - ANSWERS Cerebrum
This region of the brain acts to coordinate multiple sources of sensory information. - ANSWERS
Association area
This region of the brain controls decision making skills - ANSWERS Frontal lobe
A patient is having difficulty understanding language but is sill able to speak fluently. The
patient's dermatomes are intact. Which area of the brain is most likely damaged? - ANSWERS
Wernicke's area
A patient is having difficulty producing speech sounds, but other motor movements are normal.
Which area of the brain is most likely damaged? - ANSWERS Broca's area
Describe how memories are stored and retrieved in the brain. Include a specific brain region. -
ANSWERS Memories are stored throughout the cerebral hemispheres. The hippocampus acts
as a memory center to help with memory storage and retrieval. The involvement of the limbic
system explains why emotionally charged events result in our most vivid memories.
What is muscle tone and how is it maintained? - ANSWERS Muscle tone is the degree at which
muscles remain partially contracted while at rest. Muscle tone is continuously monitored and
maintained by the cerebellum to keep bones and joints in place.
Which statement is false concerning the brainstem? - ANSWERS The midbrain helps regulate
breathing
Which of the following is true concerning the cerebellum? - ANSWERS The anterior lobe
receives information from the body trunk.
Which is most likely a symptom of ALS? - ANSWERS Impaired ability to swallow
