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Understanding Circulation and Blood Vessels

Learn about the anatomy and function of various blood vessels in the body, including the heart, arteries, veins, and capillary beds. Explore the importance of maintaining homeostasis through circulation.

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Understanding Circulation and Blood Vessels

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  1. Review Heart Test Notes – blood vessels Atherosclerosis article "Learning is not attained by chance, it must be sought for with ardor and attended to with diligence." Abigail Adams, 1780 (in a letter to son, John Quincy Adams) . Title: Anat & Phys 4/17/07 Class Topics Objectives: Sunday, January 5, 20203:07 PM

  2. Class Assignments What By When • How does circulation vary… 4/17/07 • Read Atherosclerosis article 4/19/07 • Due this class period • Due next class period • Due in the future

  3. From: http://www.people.virginia.edu/~dp5m/phys_304/figures/capillary_bed.jpg Capillary bedsFig 13-14 • What purpose do these serve in maintaining homeostasis?

  4. From: http://www.people.virginia.edu/~dp5m/phys_304/figures/19-17a_pulmnrycirc.jpg

  5. From: http://www.people.virginia.edu/~dp5m/phys_304/figures/19-18_systemcirc.jpg

  6. Branches of the Aorta • Ascending aorta • Coronary arteries • supply blood to the heart • blockage can lead to myocardial infarction • Arch of the Aorta • Brachiocephalic artery • left common carotid artery • Left subclavian artery

  7. Branches of the Aorta • Descending Aorta • intercostal arteries • celiac artery • superior mesenteric artery • suprarenal arteries • renal arteries • gonadal arteries • inferior mesenteric artery • common iliac arteries

  8. Celiac Artery • Branches into • Gastric artery • Hepatic artery • Splenic artery • Pancreatic artery

  9. From: http://www.personal.psu.edu/ faculty/s/x/sxd5/Arteries.gif

  10. Common Iliac Arteries • Internal iliac artery • External iliac artery • Deep femoral artery • Femoral artery • Popliteal artery • Anterior tibial artery • Posterior tibial artery

  11. Brachiocephalic • Right common carotid artery • External carotid artery - scalp, face, jaw • internal carotid artery - brain • Right subclavian artery • Vertebral artery (branch) • Axillary artery • Brachial artery • Radial artery • Ulnar artery

  12. Left Common Carotid and Left Subclavian • Same branching as right side • No brachiocephalic

  13. Systemic Veins • Superior vena cava drains the body superior to the heart • Inferior vena cava drains the body inferior to the heart • Coronary sinus drains the heart wall (myocardium)

  14. Superior vena cava • Right and left brachiocephalic veins • subclavian veins • Axillary veins • Brachial veins • Ulnar veins • Radial veins • jugular veins • interior jugular vein • exterior jugular vein

  15. Inferior vena cava • Hepatic vein • Renal veins • Common Iliac veins • Gonadal veins (rt enters the CI, but left enters the renal vein) • Internal iliac veins

  16. Inferior Vena Cava • External iliac veins • Femoral veins • Great saphenous vein - longest in body • Popliteal • Posterior tibial vein • Anterior tibial vein

  17. Hepatic Portal System • Blood from the small intestines, large intestines, stomach all enter the portal system • inferior mesenteric vein and superior mesenteric vein enter the hepatic portal vein to the liver

  18. Blood movement • Trace the blood from the heart to the left arm and back to the heart. • Trace the blood from the heart to the right leg and back to the heart. • Trace the blood from the heart to the small intestine and back to the heart. • Trace the blood from the heart to the left gonad (this of course depends upon your gender) and back to the heart.

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