The middle primary brain vesicle, the mesencephalon, gives rise to which adult brain structure?
ANSWER:
midbrain
diencephalon
cerebrum
medulla oblongata
question
The cerebral hemispheres account for about 83% of total brain mass.
answer
Which of the following is true of the cerebral hemispheres of the human brain?
ANSWER:
Nearly the entire surface of the cerebral hemispheres is marked by elevated ridges called sulci.
The longitudinal fissure separates the cerebral hemispheres from the cerebellum.
Nearly the entire surface of the cerebral hemispheres is marked by shallow grooves called gyri.
The cerebral hemispheres account for about 83% of total brain mass.
question
gray matter: myelinated axons
answer
Which of the following is NOT a correctly matched pair?
ANSWER:
gray matter: myelinated axons
gray matter: location of brain nuclei
superficial in the brain: gray matter
spinal cord: inner gray matter
question
primary motor cortex
answer
Which motor area both has a homunculus and has descending projection fibers?
ANSWER:
frontal eye fields
Broca's area
premotor cortex
primary motor cortex
question
limbic association area: sense of danger
answer
Which of the following is correctly matched?
ANSWER:
limbic association area: sense of danger
vestibular cortex; pattern recognition
posterior association area: understand balance
gustatory cortex; sense of hearing
question
projection fibers
answer
For our motor commands to travel toward our muscles, the signals must travel on __________.
ANSWER:
the primary visual cortex
commissural fibers
projection fibers
association fibers
question
True
answer
In general, a primary sensory cortex breaks down sensory input into component parts, while an association cortex makes sense of sensory inputs.
ANSWER:
True
False
question
True
answer
The term cerebral dominance designates the hemisphere that is dominant for language.
ANSWER:
True
False
question
superior colliculus
answer
Which of the following is NOT a diencephalon component?
ANSWER:
hypothalamus
thalamus
pineal gland
superior colliculus
question
False
answer
The hypothalamus is the area where afferent impulses from all senses and all parts of the body are sorted out and then relayed to the appropriate area of the sensory cortex.
ANSWER:
True
False
question
regulate the thalamus
answer
Which of the following is NOT a function of the hypothalamus?
ANSWER:
regulate the thalamus
regulate food intake
regulate emotional responses
regulate body temperature
question
pons
answer
Which of the following regions of the brain stem serves as a bridge between the brain stem and the cerebellum?
ANSWER:
pons
midbrain
medulla oblongata
thalamus
question
The cerebellum generates conscious motor commands.
answer
Which of the following statements about the cerebellum is NOT correct?
ANSWER:
The cerebellum plays a role maintaining your balance.
Damage to the cerebellum could affect posture.
The cerebellum has a cortex and homunculus, just like the motor cortex.
The cerebellum generates conscious motor commands.
question
Sights often create strong emotional responses.
answer
Which of these statements is NOT correct regarding our limbic system?
ANSWER:
Sights often create strong emotional responses.
The cingulate helps you express your emotional state.
Your amygdala judges facial expressions for danger.
Emotional states can alter our blood pressure.
question
True
answer
Emotional state, rehearsal, association, and automatic memory are all factors that affect the transfer of information from short-term memory (STM) to long-term memory (LTM).
ANSWER:
True
False
question
pia mater
answer
Which of the meninges is a delicate connective tissue membrane that clings tightly to the brain like cellophane wrap following its every convolution?
ANSWER:
pia mater
arachnoid mater
periosteal layer of the dura mater
meningeal layer of the dura mater
question
Spinal nerves have mixed motor and sensory function.
answer
Which of the following statements is correct concerning the spinal cord?
ANSWER:
The white matter contains cell bodies for spinal nuclei.
Damage to sensory tracts in the spinal cord leads to paralysis.
Just like the cerebrum, the gray matter is found on the superficial surfaces.
Spinal nerves have mixed motor and sensory function.
question
First-order neuron cell bodies reside in a ganglion.
answer
Select the true statement regarding first-order neurons.
ANSWER:
First-order neurons originate in the CNS.
First-order neurons usually ascend directly to the thalamus.
First-order neuron cell bodies reside in a ganglion.
First-order neurons descend with motor commands.
question
Parkinson's disease
answer
__________ is a progressive degenerative disease of the basal nuclei that affects the dopamine-secreting pathways.
ANSWER:
Huntington's disease
Alzheimer's disease
Parkinson's disease
mad cow disease
question
True
answer
In anencephaly, the cerebrum and part of the brain stem never develop.
ANSWER:
True
False
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