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Human Biology, 7/e
Dr. Sylvia S. Mader
Cardiovascular System

Chapter Outline


7.1 The Blood Vessels

  • A series of vessels delivers blood from the heart to the capillaries, where exchange of substances takes place, and then another series of vessels delivers blood from the capillaries back to the heart. 126

    7.2 The Heart

  • The human heart is a double pump; the right side pumps blood to the lungs, and the left side pumps blood to the rest of the body. 129
  • The heartbeat rate is under intrinsic and extrinsic control. 130-31

    7.3 Features of the Cardiovascular System

  • The pulse rate of a person indicates the heartbeat rate. 132
  • Blood pressure accounts for the flow of blood in the arteries, but skeletal muscular contraction, the presence of valves, and breathing movements account for the flow of blood in the veins. 132-33

    7.4 The Vascular Pathways

  • The pulmonary arteries transport O2-poor blood to the lungs, and the pulmonary veins return O2-rich blood to the heart. 134
  • The systemic circuit transports blood from the left ventricle of the heart to the body and then returns it to the right atrium of the heart. 134

    7.5 Cardiovascular Disorders

  • Although the cardiovascular system is very efficient, it is still subject to degenerative disorders. 136

    7.6 Homeostasis

  • The cardiovascular system works with the other systems of the body to maintain homeostasis. 139








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