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
longitudinal
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 parti-
cles from entering the central nervous system tissue, keeping the brain and spinal cord sepa-
rate from general blood circulation. The blood-brain barrier is formed by the relatively im-
permeable 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.
What is the largest portion of the brain? - ANSWER A. Cerebellum
B. Correct! Cerebrum
C. Corpus collosum
D. Cingulate gyrus
All the following are functions of the hypothalamus except: - ANSWER A. Maintain home-
ostasis
B. Controls the pituitary gland
C. Links the nervous and endocrine systems
D. Correct! Relays sensory impulses to the cerebrum
This region of the brain acts to coordinate multiple sources of sensory information. - AN-
SWER A. Primary sensory cortex
B. Primary motor cortex
1
, C. Correct! Association area
D. Precentral gyrus
E. Postcentral gyrus
A patient is having difficulty understanding language but is still able to speak fluently. The
patient's dermatomes are intact. Which area of the brain is most likely damaged? - AN-
SWER A. Broca's area
B. Correct! Wernicke's area
C. Occipital lobe
D. Parietal lobe
E. Primary sensory cortex
Describe how memories are stored and retrieved in the brain. Include a specific brain region.
- ANSWER Memories are not stored in one specific area within the brain but instead 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.
Which statement is false concerning the brainstem? - ANSWER A. Correct! The midbrain
portion of the brainstem is continuous with the spinal cord.
B. The pons helps to regulate breathing.
C. The midbrain contains the superior and inferior colliculi.
D. The medulla contains reflex centers to regulate vasoconstriction.
Which of the following is false concerning the cerebellum? - ANSWER A. The gray matter
is external while the white mater is internal.
B. Correct! The cerebellar peduncles are located posteriorly.
C. The anterior lobe receives information from the body trunk.
D. The vermis coordinates arm movements.
2
The _______ fissure separates the right and left cerebral hemispheres. - ANSWER Median
longitudinal
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 parti-
cles from entering the central nervous system tissue, keeping the brain and spinal cord sepa-
rate from general blood circulation. The blood-brain barrier is formed by the relatively im-
permeable 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.
What is the largest portion of the brain? - ANSWER A. Cerebellum
B. Correct! Cerebrum
C. Corpus collosum
D. Cingulate gyrus
All the following are functions of the hypothalamus except: - ANSWER A. Maintain home-
ostasis
B. Controls the pituitary gland
C. Links the nervous and endocrine systems
D. Correct! Relays sensory impulses to the cerebrum
This region of the brain acts to coordinate multiple sources of sensory information. - AN-
SWER A. Primary sensory cortex
B. Primary motor cortex
1
, C. Correct! Association area
D. Precentral gyrus
E. Postcentral gyrus
A patient is having difficulty understanding language but is still able to speak fluently. The
patient's dermatomes are intact. Which area of the brain is most likely damaged? - AN-
SWER A. Broca's area
B. Correct! Wernicke's area
C. Occipital lobe
D. Parietal lobe
E. Primary sensory cortex
Describe how memories are stored and retrieved in the brain. Include a specific brain region.
- ANSWER Memories are not stored in one specific area within the brain but instead 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.
Which statement is false concerning the brainstem? - ANSWER A. Correct! The midbrain
portion of the brainstem is continuous with the spinal cord.
B. The pons helps to regulate breathing.
C. The midbrain contains the superior and inferior colliculi.
D. The medulla contains reflex centers to regulate vasoconstriction.
Which of the following is false concerning the cerebellum? - ANSWER A. The gray matter
is external while the white mater is internal.
B. Correct! The cerebellar peduncles are located posteriorly.
C. The anterior lobe receives information from the body trunk.
D. The vermis coordinates arm movements.
2
