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BIO669 EXAM QUESTIONS AND VERIFIED ANSWERS A+ GRADED
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A stroke affecting the temporal lobe is most likely to show signs and symptoms affectingthe:
A. Patients vision
B. Autonomic nervous system
C. Facial nerve Bell's Palsy
D. Patients speech or hearing - ANSWER D. Patients speech or hearing
BIO669 EXAM QUESTIONS AND VERIFIED ANSWERS
A+ GRADED
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) - ANSWER 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 - ANSWER 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
D. Vascular smooth muscle relaxation and dilation in cardiac arterioles - ANSWER D.
Vascular smooth muscle relaxation and dilation in cardiac arterioles
The division of the peripheral nervous system that arises from the thoracic and lumbar
regions is the:
A. Central
B. Somatic
C. Parasympathetic
D. Sympathetic - ANSWER D. Sympathetic
Ephedra is a sympathomimetic, which by definition means that 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 - ANSWER 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 - ANSWER 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 - ANSWER C. Occurs only at the Nodes of
Ranvier
Graded potentials are all of the following EXCEPT:
A. Impulses which travel without diminishing over distance
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 - ANSWER 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. Would have no effect on membrane potential - ANSWER A. Would become more
positive until the inside of the cell became positive
The basal ganglia (cerebral nuclei) are most involved in:
A. Interpretation of sensation from the body
B. Executive functions (judgement and focus)
C. Emotional response to events
D. Inhibiting unwanted movement (co-ordinating movement) - ANSWER D. Inhibiting
unwanted movement (co-ordinating 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
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