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

Anatomy & Physiology

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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

Anatomy & Physiology

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.

Anatomy & Physiology

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

Anatomy & Physiology

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

Anatomy & Physiology