The covering of the lungs is the ________, and they are located in the ________ cavities.
A. parietal pleura; peritoneal
B. visceral pleura; peritoneal
C. visceral pleura; pleural
D. parietal pleura; pleural
Answer: C
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The following list accurately represents levels of organization in the body from smallest to largest: nucleus ? chromosome ? liver cell? liver epithelial tissue ? liver? digestive system
Answer the following statement true (T) or false (F)
When a resting muscle contracts only enough to produce tension without movement, this is an example of
A) activation. B) atrophy. C) twitch. D) hypertrophy. E) muscle tone.
Class II MHC molecules are found _________.
A) only on granulocytes and macrophages. B) on all cells with a nucleus. C) only on liver cells and macrophages in the spleen. D) only on red blood cells. E) only on lymphocytes and macrophages.
Summation
A) is caused by combining two or more local potentials. B) occurs at the trigger zone of the postsynaptic neuron. C) results in an action potential if it reaches the threshold potential. D) can occur when two action potentials arrive in close succession at a single presynaptic terminal. E) all of the above.