• Gonadal hormones, particularly testosterone, stimulate red blood cell production (p. 370)
• The placenta permits exchanges of gases, nutrients, and waste products between the maternal and fetal blood (p. 672)
• Erection of the penis and clitoris results from vasodilation of blood vessels (p. 643)
Cardiac Output, Blood Flow, and Blood Pressure
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.