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BIO 669 EXAM REVIEW QUESTIONS WITH COMPLETE SOLUTIONS
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BIO 669 EXAM REVIEW QUESTIONS WITH COMPLETE SOLUTIONS
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BIO 669 EXAM REVIEW QUESTIONSWITH COMPLETE SOLUTIONS
When both Na+ and K+ are permeable at the same time, what will happen to the
membrane potential? - Answer-The cell membrane depolarized
Graded potentials are all of the following except: - Answer-Impulses which travel without
diminishing over distance
Movement of K+ down its electrochemical gradient will result in what effect on
membrane potential? - Answer-Hyperpoloarization
The reticular formation is responsible for? - Answer-Wakefulness and vital reflexes
Damage to Broca's area is mostly likely to cause: - Answer-inability/difficulty in forming
words (expressive aphasia)
A stroke affecting the temporal lobe would most likely affect: - Answer-Primary auditory
complex (language recognition)
Vascular smooth muscle is most impacted by what type of receptor? - Answer-Alpha 1
The alpha-1 receptor will, upon binding to its ligand, will result in which of the following
effects: - Answer-Excitation and vasoconstriction of vascular smooth muscles
A stroke affecting the temporal lobe is most likely to show signs and symptoms affecting
the: - Answer-Patient's speech or hearing
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 -
Answer-Diarrhea and abdominal cramping
The parasympathetic nervous system is associated with which of the following: -
Answer-Ganglia that are close to the target organ
The ______ division of the autonomic nervous system helps conserve energy and the
bodys resources (rest and digest) and uses _______ as its neurotransmitter(s) -
Answer-Parasympathetic; acetylcholine
Parasympathetic system stimulation causes all of the following except: - Answer-
Increasing vasodilation of vascular smooth muscle
The effect of sympathetic nervous system activation on metabolism includes all of the
following EXCEPT: - Answer-Storage of glucose as glycogen is enhanced
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