Bio 669 Quiz 2 Questions And Answers With 100%
Correct Answers Latest Update 2024/2025.
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
Which of the following is a correct statement regarding the comparison of the autonomic and somatic
nervous system? - ANSWER They both originate in the CNS and end in the PNS, so are part of
the peripheral nervous system
Correct Answers Latest Update 2024/2025.
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
Which of the following is a correct statement regarding the comparison of the autonomic and somatic
nervous system? - ANSWER They both originate in the CNS and end in the PNS, so are part of
the peripheral nervous system
