Airflow is ________ related to the pressure gradient and __________ related to resistance
A.
directly; directly
B.
directly; inversely
C.
inversely; inversely
D.
inversely; directly
B
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The lining of the heart and blood vessels is called ________.
Fill in the blank(s) with the appropriate word(s).
Twitch summation
a. is a means by which gradation of muscle contraction may be accomplished. b. results from increasing the number of motor units that are firing within a muscle. c. results from increasing the frequency at which motor units are firing within a muscle. d. both (a) and (b) above. e. both (a) and (c) above.
The fourth ventricle lies posterior to which structure?
What will be an ideal response?
How would an attack by a mugger affect blood pressure? What is the physiological basis for your answer?
Blood pressure would decrease due to sympathetic stimulation. Blood pressure would increase due to parasympathetic nervous system stimulation. Blood pressure would decrease due to parasympathetic nervous system stimulation. Blood pressure would increase due to sympathetic nervous system stimulation. Blood pressure would increase due to vagal nerve stimulation.