Physiology V01 - Introduction to Human Physiology » Fall 2021 » Lecture Quiz 6

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Question #1
Tonic receptors adapt slowly while phasic receptors adapt rapidly.
A.   TRUE
B.   FALSE
Question #2
Which of the following is not true?
A.   stimulus intensity is proportional to the frequency of the impulses
B.   adaptation refers to a decrease in the frequency of action potentials
C.   sensitivity is directly proportional to the threshold
D.   transduction is the conversion of a stimulus into an action potential
E.   receptors respond best, but not exclusively, to one type of stimulus
Question #3
Chemoreceptors detect changes in pH, CO2 and O2 levels in the blood and cerebrospinal fluid.
A.   TRUE
B.   FALSE
Question #4
Which cranial nerve carries motor impulses to the pharynx, larynx and visceral organs?
A.   Trigeminal (V)
B.   Abducens (VI)
C.   Trochlear (IV)
D.   Oculomotor (III)
E.   Vagus (X)
Question #5
The preganglionic neurons of both the sympathetic and parasympathetic nervous systems excite nicotinic acetylcholine receptors.
A.   FALSE
B.   TRUE
Question #6
What type of brain wave is generated by a person who is relaxed and unfocused?
A.   beta
B.   theta
C.   delta
D.   gamma
E.   alpha
Question #7
Sensory receptors convert a stimulus into an action potential and encode the stimulus intensity by varying the frequency of impulses.
A.   TRUE
B.   FALSE
Question #8
During the REM stage of sleep, the vital signs are at their lowest point.
A.   FALSE
B.   TRUE
Question #9
Which of the following is not true of long term memories (LTM)?
A.   are “stored” in reverberating neuronal circuits
B.   tertiary LTMs may last a life time
C.   may have an unlimited capacity
D.   they are transferred from short term memories
E.   explicit LTMs have conscious recall
Question #10
Which of the following serve the skeletal muscles and skin in the anterior, lateral, and medial thigh?
A.   lumbar plexus
B.   intercostal nerves
C.   sacral plexus
D.   brachial plexus
E.   cervical plexus

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