The passageways between cardiac muscle cells that allow ions to pass freely are called __________.
a. gap junctions
b. trabeculae carneae
c. anastomoses
d. demosomes
Answer: a. gap junctions
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Cardiocytes are joined together by special junctions called __________ discs.
Fill in the blank(s) with the appropriate word(s).
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A. Regulate glucose levels in the blood B. Act as secondary sex hormones C. Stimulate metabolism of lipids D. Regulate electrolyte concentration in body fluids E. Stimulate metabolism of proteins
Which of the following is a function of erythrocytes?
A. To defend the body against pathogens B. To initiate blood clotting C. To regulate erythropoiesis D. To transport nutrients E. To transport carbon dioxide
What is a follicle composed of?
A) An oocyte B) An organ in the ovary C) An oocyte enclosed in follicular or granulosa cells D) A group of granulosa cells E) A group of follicular cells