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Comprehensive Overview of Blood Vessels and Circulation System

Explore the human anatomy's intricate blood vessel system, including pulmonary and systemic circuits, major arteries and veins, cerebral arterial circle, and hepatic portal system. Understand how the cardiovascular system distributes blood and exchanges substances with body cells.

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Comprehensive Overview of Blood Vessels and Circulation System

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  1. Marieb’s Human Anatomy and Physiology Marieb w Hoehn Chapter 19 Blood Vessels Lecture 5 Special Topics in Circulation

  2. Lecture Overview • Pulmonary Circuit • Systemic Circuit • Arterial system • Venous system • Special Topics • The Aorta and its branches • Arteries and veins serving the head • Cerebral Arterial Circle • Portal systems & the hepatic portal system

  3. Pulmonary Circuit • consists of vessels that carry blood from the heart to the lungs and back to the heart Figure from: Hole’s Human A&P, 12th edition, 2010

  4. Systemic Circuit • Composed of vessels that lead from the heart to all body parts (except the lungs) and back to the heart • Includes the aorta and its branches (know!) • Includes the system of veins that return blood to the right atrium • Includes the coronary circulation

  5. Major Vessels of Arterial System Figure from: Martini, Anatomy & Physiology, Prentice Hall, 2001

  6. Descending and Thoracic Aorta Diaphragm is the point at which the thoracic aorta becomes the abdominal aorta Figure from: Martini, Anatomy & Physiology, Prentice Hall, 2001

  7. Aorta and Its Principal Branches Table from: Hole’s Human A&P, 12th edition, 2010 **Need to know this table; if I give you an artery, you need to know which branch (part) of the aorta it arises from

  8. Arteries to Neck, Head, and Brain Figure from: Hole’s Human A&P, 12th edition, 2010 * * * * * *

  9. Cerebral Arterial Circle • Also called the Circle of Willis • Formed by anterior and posterior cerebral arteries, which join the internal carotid and basilar arteries Know all these Figure from: Hole’s Human A&P, 12th edition, 2010

  10. Major Veins of the Brain, Head, and Neck Figure from: Martini, Anatomy & Physiology, Prentice Hall, 2001

  11. Major Veins - Upper Limb and Shoulder * * Median cubital vein is often used to draw blood (venipuncture) * (deep) * (superficial) * (superficial) * * * * * Figure from: Hole’s Human A&P, 12th edition, 2010

  12. Hepatic Portal Vein Hepatic portal vein drains one set of capillaries and connects via veins to another set of capillaries before it becomes a vein again Note that veins in the abdominal cavity drain into the hepatic portal vein Figure from: Hole’s Human A&P, 12th edition, 2010

  13. Veins That Drain the Abdominal Viscera * * * Figure from: Martini, Anatomy & Physiology, Prentice Hall, 2001

  14. Review • The blood vessels form a closed circuit for distribution of the blood from the heart to the tissues and back again. • The vessels of the CVS include • Arteries - carry blood away from ventricles of heart; this walled; elastic • Arterioles - receive blood from arteries/carry blood to capillaries; major flow regulators • Capillaries - sites of exchange of substances between blood and body cells • Venules - receive blood from capillaries • Veins - carry blood toward atria of heart

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