A major difference between cardiac muscle cells and the cells in the cardiac conducting system is that the contractile cells do not undergo spontaneous depolarization.
Answer the following statement true (T) or false (F)
True
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Using Figure 26.3, match the following:
1) The stage called ovulation.
2) Vesicular (Graafian) follicle.
3) Primary follicles.
4) Primordial follicle.
5) Corpus luteum.
6) Mature follicle.
The slightly lower pH of venous blood compared to arterial blood is caused by:
a. the lower oxygen level of venous blood b. the influx of lactic acid in venous blood c. the influx of carbon dioxide in venous blood d. all of the above
Calcium homeostasis involves
a. immediate adjustments required to maintain a constant free Ca2+ concentration on a minute-to-minute basis b. slowly responding adjustments required to maintain a constant total amount of Ca2+ in the body c. actions of parathyroid hormone d. both a and c e. both b and c
Drinking, a behavioral effector of homeostatic control of body fluid levels, involves which of the following physiological systems?
a. nervous b. endocrine c. muscular d. skeletal e. all of these