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BIO
BIO 669 EXAM (NEW 2025-2026
UPDATE) QUESTIONS & VERIFIED
ANSWERS| GRADE A| 100% CORRECT
A stroke affecting the temporal lobe is most likely to show signs and
symptoms affecting the:
A. Patients vision
B. Autonomic nervous system
C. Facial nerve (Bell's Palsy)
D. Patients speech or hearing - ANS ✓D. Patients speech or hearing
The frontal lobe is responsible for conscious:
A. Control of voluntary motor area and limbic system
B. Awareness of sensation (somatic sensory area)
C. Primary visual cortex (not this because this occipital lobe)
D. Primary auditory cortex (Temporal lobe) - ANS ✓A. Control of voluntary
motor area and limbic system
The cerebellum is most responsible for:
A. Regulation of breathing and blood pressure
B. Control of fine motor control and balance/posture
C. Conscious awareness of sensation
D. Voluntary control of muscles - ANS ✓B. Control of fine motor control and
balance/posture
The beta-2 receptor, upon binding to its ligand, will result in which of the
following effects?
A. Vasoconstriction of arterioles serving the skin
B. Stimulation of GI tract motility and relaxation of sphincters
C. Excitation of somatic muscle cells
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D. Vascular smooth muscle relaxation and dilation in cardiac arterioles - ANS
✓D. Vascular smooth muscle relaxation and dilation in cardiac arterioles
The peripheral nervous system division that arises from the thoracic and
lumbar regions is the:
A. Central
B. Somatic
C. Parasympathetic
D. Sympathetic - ANS ✓D. Sympathetic
Ephedra is a sympathomimetic, meaning it has sympathetic nervous system
activating effects. As such, it may be assumed to have all of the following
side effects EXCEPT:
A. Increased heart rate
B. Increased blood pressure
C. Pale, clammy (moist) skin
D. Diarrhea and abdominal cramping - ANS ✓D. Diarrhea and abdominal
cramping
The ______ division of the autonomic nervous system helps conserve energy
and the body's resources (rest) and uses _______ as it neurotransmitter(s).
A. Sympathetic; acetylcholine and norepinephrine
B. Sympathetic; norepinephrine
C. Parasympathetic; acetylcholine and norepinephrine
D. Parasympathetic; acetylcholine - ANS ✓D. Parasympathetic; acetylcholine
Saltatory conduction:
A. Occurs across the entire axon and membrane
B. Occurs in both myelinated and unmyelinated axons
C. Occurs only at the Nodes of Ranvier
D. Does not affect axon conduction velocities - ANS ✓C. Occurs only at the
Nodes of Ranvier
Graded potentials are all of the following EXCEPT:
A. Impulses which travel without diminishing over distance
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B. Localized membrane potential changes as a result of ion channels opening
C. Graded potentials can be added to achieve a combined effect on
membrane potential
D. Can be either hyperpolarizing or depolarizing - ANS ✓A. Impulses which
travel without diminishing over distance
Calcium has an equilibrium potential of 123 mV. This mean that under
normal resting potential, if Ca++ became more permeable, the membrane
potential would:
A. Become more positive until the inside of the cell became positive
B. Become more negative to balance out the positive charge
C. Stabilize the membrane potential and remain unchanged
D. Have no effect on membrane potential - ANS ✓A. Become more positive
until the inside of the cell became positive
The basal ganglia (cerebral nuclei) are most involved in:
A. Interpreting sensation from the body
B. Executive functions (judgement and focus)
C. Emotional response to events
D. Inhibiting unwanted movement (coordinating movement) - ANS ✓D.
Inhibiting unwanted movement (coordinating movement)
The parasympathetic nervous system is associated with which of the
following:
A. Neuron axons exiting from the thoracic and lumbar regions of the spine
B. Ganglia that are close to the target organ
C. Use of norepinephrine as a neurotransmitter
D. An excitatory effect on GI sphincter muscles - ANS ✓B. Ganglia that are
close to the target organ
The receptive (incoming signal) portion of the neuron is called the:
A. Cell body
B. Axon
C. Dendrite
D. Lysosome - ANS ✓C. Dendrite
BIO 669
BIO
BIO 669 EXAM (NEW 2025-2026
UPDATE) QUESTIONS & VERIFIED
ANSWERS| GRADE A| 100% CORRECT
A stroke affecting the temporal lobe is most likely to show signs and
symptoms affecting the:
A. Patients vision
B. Autonomic nervous system
C. Facial nerve (Bell's Palsy)
D. Patients speech or hearing - ANS ✓D. Patients speech or hearing
The frontal lobe is responsible for conscious:
A. Control of voluntary motor area and limbic system
B. Awareness of sensation (somatic sensory area)
C. Primary visual cortex (not this because this occipital lobe)
D. Primary auditory cortex (Temporal lobe) - ANS ✓A. Control of voluntary
motor area and limbic system
The cerebellum is most responsible for:
A. Regulation of breathing and blood pressure
B. Control of fine motor control and balance/posture
C. Conscious awareness of sensation
D. Voluntary control of muscles - ANS ✓B. Control of fine motor control and
balance/posture
The beta-2 receptor, upon binding to its ligand, will result in which of the
following effects?
A. Vasoconstriction of arterioles serving the skin
B. Stimulation of GI tract motility and relaxation of sphincters
C. Excitation of somatic muscle cells
BIO 669
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BIO
D. Vascular smooth muscle relaxation and dilation in cardiac arterioles - ANS
✓D. Vascular smooth muscle relaxation and dilation in cardiac arterioles
The peripheral nervous system division that arises from the thoracic and
lumbar regions is the:
A. Central
B. Somatic
C. Parasympathetic
D. Sympathetic - ANS ✓D. Sympathetic
Ephedra is a sympathomimetic, meaning it has sympathetic nervous system
activating effects. As such, it may be assumed to have all of the following
side effects EXCEPT:
A. Increased heart rate
B. Increased blood pressure
C. Pale, clammy (moist) skin
D. Diarrhea and abdominal cramping - ANS ✓D. Diarrhea and abdominal
cramping
The ______ division of the autonomic nervous system helps conserve energy
and the body's resources (rest) and uses _______ as it neurotransmitter(s).
A. Sympathetic; acetylcholine and norepinephrine
B. Sympathetic; norepinephrine
C. Parasympathetic; acetylcholine and norepinephrine
D. Parasympathetic; acetylcholine - ANS ✓D. Parasympathetic; acetylcholine
Saltatory conduction:
A. Occurs across the entire axon and membrane
B. Occurs in both myelinated and unmyelinated axons
C. Occurs only at the Nodes of Ranvier
D. Does not affect axon conduction velocities - ANS ✓C. Occurs only at the
Nodes of Ranvier
Graded potentials are all of the following EXCEPT:
A. Impulses which travel without diminishing over distance
BIO 669
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BIO
B. Localized membrane potential changes as a result of ion channels opening
C. Graded potentials can be added to achieve a combined effect on
membrane potential
D. Can be either hyperpolarizing or depolarizing - ANS ✓A. Impulses which
travel without diminishing over distance
Calcium has an equilibrium potential of 123 mV. This mean that under
normal resting potential, if Ca++ became more permeable, the membrane
potential would:
A. Become more positive until the inside of the cell became positive
B. Become more negative to balance out the positive charge
C. Stabilize the membrane potential and remain unchanged
D. Have no effect on membrane potential - ANS ✓A. Become more positive
until the inside of the cell became positive
The basal ganglia (cerebral nuclei) are most involved in:
A. Interpreting sensation from the body
B. Executive functions (judgement and focus)
C. Emotional response to events
D. Inhibiting unwanted movement (coordinating movement) - ANS ✓D.
Inhibiting unwanted movement (coordinating movement)
The parasympathetic nervous system is associated with which of the
following:
A. Neuron axons exiting from the thoracic and lumbar regions of the spine
B. Ganglia that are close to the target organ
C. Use of norepinephrine as a neurotransmitter
D. An excitatory effect on GI sphincter muscles - ANS ✓B. Ganglia that are
close to the target organ
The receptive (incoming signal) portion of the neuron is called the:
A. Cell body
B. Axon
C. Dendrite
D. Lysosome - ANS ✓C. Dendrite
BIO 669
