What is the role of surfactant in alveolar ventilation?
a. increases the surface area for gas exchange
b. attracts water to the alveolar surface
c. increases the surface tension between fluid and the alveoli
d. decreases the surface tension between water molecules on the lining of the alveoli
e. decreases thoracic compliance
Ans: d. decreases the surface tension between water molecules on the lining of the alveoli
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Muscles that assist an agonist are called ________.
Fill in the blank(s) with the appropriate word(s).
Which part of the nephron can be found in the medulla of the kidney?
a. Bowman’s capsule b. glomerulus c. loop of Henle d. distal convoluted tubule
The function of acetylcholinesterase is to
A. open voltage-gated sodium gates. B. breakdown acetylcholine in the synapse. C. produce an IPSP on the postsynaptic membrane. D. metabolize norepinephrine.
Assume in a laboratory you were able to isolate a neuron and remove the Acetylcholine receptors from the postsynaptic membrane. The substance ______ would no longer cause facilitation of this neuron
Fill in the blank(s) with the appropriate word(s).