The heart is confined within a double-walled serous membrane sac. The part of the membrane that is in contact with the heart is the _____ layer
A. serous
B. visceral
C. parietal
D. synovial
E. mesothelial
B
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Indicate whether the statement is true or false
The connective tissue wrapping that surrounds bundles (fascicles) of axons is the
A. endosteum. B. epineurium. C. periosteum. D. perineurium. E. endoneurium.
Which of the following is not a function of the respiratory system?
A. It allows exchange of oxygen and carbon dioxide between blood and air. B. It contributes to maintenance of pH balance. C. It helps to expel abdominal contents during defecation and childbirth. D. It helps to transport gases to tissues. E. It permits vocalizations.
If a cell doubled in diameter, it would have twice as much cytoplasm to maintain
Indicate whether the statement is true or false