In the figures, which one represents cardiac muscle?
a. A
b. B
c. C
d. All of the above
e. None of the above
Answer: b. B
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On a muscle fiber, the two terminal cisternae and the centrally placed T-tubule form a structure called a ________.
Fill in the blank(s) with the appropriate word(s).
What structure does "D" represent on the diagram of the plasma membrane?
A. Internal membrane surface B. Phospholipid bilayer C. Membrane channel protein D. Peripheral protein E. Integral protein
The parasympathetic nervous system will trigger the ________ phase of digestive secretion when food arrives in the duodenum.
A. pancreatic B. accessory C. gastric D. intestinal E. cephalic
Synthesized by the combined action of the skin, kidneys, and liver, ________ is important to the deposition of bone
A) estrogen B) calcitonin C) growth hormone D) calcitriol E) testosterone