Dual innervation of organs by both branches of the autonomic nervous system allows a fine degree of control over these organs
Indicate whether the statement is true or false
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The hormone(s) responsible for preparing the breasts for lactation during pregnancy is/are ________.
A. estrogen B. prolactin C. oxytocin D. progesterone E. Both "estrogen" and "progesterone" are correct.
Microscopic folds that extend from the apical surface of certain epithelia to increase the surface area for absorption and secretion are called
A. microvilli. B. mucus. C. flagella. D. desmosomes. E. cilia.
Select the correct statement about the heart valves.
A) The mitral valve separates the right atrium from the right ventricle. B) The tricuspid valve divides the left atrium from the left ventricle. C) Aortic and pulmonary valves control the flow of blood into the heart. D) The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricular contraction does not occur.
The most important action of plasma albumin is
A) helping maintain colloid osmotic pressure. B) acting as antibodies of immunity. C) serving as energy sources. D) transporting lipids and fat-soluble vitamins.