Exam 4 BIOL 212 SFSU Questions and
Verified Answers
Name some of the characteristics of a muscle fiber. - CORRECT ANSWERS --- multinucleated or
polynucleated
- large, long, and cylindrically shaped
- fibers extend entire length of muscle
- striated
- voluntary regulated by the somatic motor neuron
- neurogenic property
What makes up grey matter? - CORRECT ANSWERS -- Unmyelinated nerve cell bodies (Clusters
of cell bodies in the CNS are nuclei)
- Dendrites
- Axon terminals
What makes up white matter? - CORRECT ANSWERS -- Myelinated axons (Axon bundles
connecting CNS regions are tracts)
- Few cell bodies
What part of the brainstem regulates the autonomic nervous system and the motor responses
for breathing? - CORRECT ANSWERS -pons
What are the functions of the hypothalamus? - CORRECT ANSWERS -- homeostatic functions
(temp, thirst, urine, food)
- important link between nervous and endocrine system
- extensive involvement with emotion and basic behavioral patterns
- role in sleep/wake cycle
Functions of cerebellum - CORRECT ANSWERS -- regulation of muscle tone
- coordination of skilled voluntary movement
- planning and initiation of voluntary activity
- storage of procedural memories
,- maintenance of balance
- control of eye movement
Limbic System Functions - CORRECT ANSWERS -- learning
- emotion
- appetite (visceral function)
- sex
- endocrine integration
What part of the brain allows the communication to crossover between the right and left
hemisphere? - CORRECT ANSWERS -Corpus Callosum
What part of the brain is the center for short-term memory? - CORRECT ANSWERS -Limbic
system
part of brain associated with voluntary motor movement: - CORRECT ANSWERS -frontal
associated with language - CORRECT ANSWERS -frontal
associated with abstract thinking - CORRECT ANSWERS -frontal
pART OF BRAIN associated with processing sensory information - CORRECT ANSWERS -parietal
part of brain associated with two-point discrimination - CORRECT ANSWERS -parietal
associated with taste, balance, and smell - CORRECT ANSWERS -temporal
associated with auditory reception - CORRECT ANSWERS -temporal
associated with visual perception - CORRECT ANSWERS -occipital
Parietal Lobe - CORRECT ANSWERS -Associated with processing sensory information coming
into the primary sensory cortex:
body awareness and spatial orientation
interpretation of size and shape
consistency and texture relationship
between body parts and touch,
vibration,
pressure,
and two-point discrimination.
, Temporal Lobe - CORRECT ANSWERS -Associated with auditory reception,
interpretation, and association; short/long
term memory (the hippocampus is the center for short-term memory); behavior, taste,
balance, and smell.
Occipital Lobe - CORRECT ANSWERS -Interprets and recognizes images; is the site ofvisual
reception and visual association
(integration of movements in focusing the eye and correlation of visual images with previous
visual experiences and other sensory stimuli); has a component of spatial orientation.
Cerebral Cortex - CORRECT ANSWERS -Largest part of brain, located under forehead and
divided into two parts and four lobes, outer layer of cerebrum
Brainstem Components - CORRECT ANSWERS -Midbrain, pons, medulla oblongata
Forebrain Components - CORRECT ANSWERS -Thalamus
Hypothalamus
Limbic system
Frontal Lobe - CORRECT ANSWERS -Associated with voluntary motor movement;
motor speech (language); cognition and
memory; judgment; abstract thinking; ethics;
emotional responses; and the autonomic
function associated with emotions.
Action Potentials - CORRECT ANSWERS -- communicate over long distances
- All or none
-rapid and uniform electrical signal conducted down a cell membrane
Graded Potentials - CORRECT ANSWERS -- communicate over short distances
- a change in membrane potential whose magnitude is proportional to the stimulus and that
decreases with distance as it spreads through the cytoplasm.
threshold - CORRECT ANSWERS -the minimum membrane potential that will initiate an action
potential in the trigger zone; the minimum stimulus required to set a reflex response in motion.
dendrites - CORRECT ANSWERS -receive information, typically neurotransmitters, then undergo
graded potentials.
Verified Answers
Name some of the characteristics of a muscle fiber. - CORRECT ANSWERS --- multinucleated or
polynucleated
- large, long, and cylindrically shaped
- fibers extend entire length of muscle
- striated
- voluntary regulated by the somatic motor neuron
- neurogenic property
What makes up grey matter? - CORRECT ANSWERS -- Unmyelinated nerve cell bodies (Clusters
of cell bodies in the CNS are nuclei)
- Dendrites
- Axon terminals
What makes up white matter? - CORRECT ANSWERS -- Myelinated axons (Axon bundles
connecting CNS regions are tracts)
- Few cell bodies
What part of the brainstem regulates the autonomic nervous system and the motor responses
for breathing? - CORRECT ANSWERS -pons
What are the functions of the hypothalamus? - CORRECT ANSWERS -- homeostatic functions
(temp, thirst, urine, food)
- important link between nervous and endocrine system
- extensive involvement with emotion and basic behavioral patterns
- role in sleep/wake cycle
Functions of cerebellum - CORRECT ANSWERS -- regulation of muscle tone
- coordination of skilled voluntary movement
- planning and initiation of voluntary activity
- storage of procedural memories
,- maintenance of balance
- control of eye movement
Limbic System Functions - CORRECT ANSWERS -- learning
- emotion
- appetite (visceral function)
- sex
- endocrine integration
What part of the brain allows the communication to crossover between the right and left
hemisphere? - CORRECT ANSWERS -Corpus Callosum
What part of the brain is the center for short-term memory? - CORRECT ANSWERS -Limbic
system
part of brain associated with voluntary motor movement: - CORRECT ANSWERS -frontal
associated with language - CORRECT ANSWERS -frontal
associated with abstract thinking - CORRECT ANSWERS -frontal
pART OF BRAIN associated with processing sensory information - CORRECT ANSWERS -parietal
part of brain associated with two-point discrimination - CORRECT ANSWERS -parietal
associated with taste, balance, and smell - CORRECT ANSWERS -temporal
associated with auditory reception - CORRECT ANSWERS -temporal
associated with visual perception - CORRECT ANSWERS -occipital
Parietal Lobe - CORRECT ANSWERS -Associated with processing sensory information coming
into the primary sensory cortex:
body awareness and spatial orientation
interpretation of size and shape
consistency and texture relationship
between body parts and touch,
vibration,
pressure,
and two-point discrimination.
, Temporal Lobe - CORRECT ANSWERS -Associated with auditory reception,
interpretation, and association; short/long
term memory (the hippocampus is the center for short-term memory); behavior, taste,
balance, and smell.
Occipital Lobe - CORRECT ANSWERS -Interprets and recognizes images; is the site ofvisual
reception and visual association
(integration of movements in focusing the eye and correlation of visual images with previous
visual experiences and other sensory stimuli); has a component of spatial orientation.
Cerebral Cortex - CORRECT ANSWERS -Largest part of brain, located under forehead and
divided into two parts and four lobes, outer layer of cerebrum
Brainstem Components - CORRECT ANSWERS -Midbrain, pons, medulla oblongata
Forebrain Components - CORRECT ANSWERS -Thalamus
Hypothalamus
Limbic system
Frontal Lobe - CORRECT ANSWERS -Associated with voluntary motor movement;
motor speech (language); cognition and
memory; judgment; abstract thinking; ethics;
emotional responses; and the autonomic
function associated with emotions.
Action Potentials - CORRECT ANSWERS -- communicate over long distances
- All or none
-rapid and uniform electrical signal conducted down a cell membrane
Graded Potentials - CORRECT ANSWERS -- communicate over short distances
- a change in membrane potential whose magnitude is proportional to the stimulus and that
decreases with distance as it spreads through the cytoplasm.
threshold - CORRECT ANSWERS -the minimum membrane potential that will initiate an action
potential in the trigger zone; the minimum stimulus required to set a reflex response in motion.
dendrites - CORRECT ANSWERS -receive information, typically neurotransmitters, then undergo
graded potentials.
