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Bio 669 Quiz 2- starred on quiz. Exam
Questions And Answers (Guaranteed A+)
When both Na+ and K+ are permeable at the same time (as in opening ion channels at the
neuromuscular junction allowing both to cross), 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 potassium down its electrochemical gradient will result in what effect on
membrane potential? - answer✔Hyperpolarization
The reticular formation is responsible for: - answer✔Wakefulness and vital reflexes
Damage to Broca's area is most likely to cause: - answer✔Inability/ difficulty in forming words
(expressive aphasia)
A stroke affecting the temporal lobe would most likely affect: - answer✔a. Primary auditory
complex (language recognition)
A stroke affecting the temporal lobe is most likely to show signs and symptoms affecting the -
answer✔Patient's speech or hearing
Vascular smooth muscle is most impacted by what type of receptor(what receptor is most
present - answer✔Alpha1
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 muscle
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 the target organ
1|Page
ALL RIGHTS RESERVED.
Bio 669 Quiz 2- starred on quiz. Exam
Questions And Answers (Guaranteed A+)
When both Na+ and K+ are permeable at the same time (as in opening ion channels at the
neuromuscular junction allowing both to cross), 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 potassium down its electrochemical gradient will result in what effect on
membrane potential? - answer✔Hyperpolarization
The reticular formation is responsible for: - answer✔Wakefulness and vital reflexes
Damage to Broca's area is most likely to cause: - answer✔Inability/ difficulty in forming words
(expressive aphasia)
A stroke affecting the temporal lobe would most likely affect: - answer✔a. Primary auditory
complex (language recognition)
A stroke affecting the temporal lobe is most likely to show signs and symptoms affecting the -
answer✔Patient's speech or hearing
Vascular smooth muscle is most impacted by what type of receptor(what receptor is most
present - answer✔Alpha1
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 muscle
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 the target organ
1|Page
