Compared with skeletal muscle, which of the following is not true of smooth muscle?
A. There is one nucleus per cell.
B. There are no striations.
C. There are no Z discs.
D. It has an ability to regenerate through mitosis.
E. There are more T tubules.
E. There are more T tubules.
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Indicate whether the statement is true or false
The corpus luteum continues to secrete estrogens and progesterone in early pregnancy due to stimulation by ________.
A. LH B. FSH C. GnRH D. hCG
The pericardium is a two-layered serous membrane that
A. encloses a lung. B. covers the small intestine. C. encloses the kidney. D. encloses the heart. E. provides lubrication for the knee.
Name the type of membrane channel that opens in response to chemical binding and is found in dendrites of some sensory receptors like pain receptors, and in the dendrites and cell bodies of interneurons and motor neurons
a) leakage channel b) ligand-gated channels c) mechanically gated channels d) voltage-gated channels e) pressure-sensitive channel