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Arteries & Veins To Know For Practical

Arteries & Veins To Know For Practical. Parts of Intrinsic Conduction System. Sinoatrial Node (SA node) - the pacemaker; where the action potential originates, starting each heartbeat As action potential moves, contraction of atria is stimulated

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Arteries & Veins To Know For Practical

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  1. Arteries & VeinsTo Know For Practical

  2. Parts of Intrinsic Conduction System • Sinoatrial Node (SA node) - the pacemaker; where the action potential originates, starting each heartbeat • As action potential moves, contraction of atria is stimulated • Atrioventricular Node (AV node) - receives action potential from SA node and sends along to…

  3. Parts of Intrinsic Conduction System • Atrioventricular Bundle (Bundle of His) – branches off into right and left bundle branches, and then sends action potential along to… • Purkinje Fibers – action potential received begins ventricular contraction at apex and continues contraction back up toward atria, helping to eject blood into pulmonary trunk or aortic arch

  4. Labeling The Heart • AD: (Left) Pulmonary Artery • AE: Left Atrium • BC: Bicuspid (Mitral) Valve • BD: Aortic Semilunar Valve • BE: Left Ventricle • CD: Aorta

  5. Labeling The Heart • Let’s Also Label… • Pulmonary Trunk • Pulmonary Semilunar Valve • Septum • Apex

  6. Artery Circulation • Aorta: largest artery in body; exits left ventricle and is divided into three parts • Ascending aorta • Aortic arch • Descending aorta

  7. Artery Circulation • Ascending aorta: Where aorta first comes up; right and left coronary arteries branch from here

  8. Artery Circulation • Aortic arch: arching posteriorly and to the left and has three branches • Brachiocephalic artery • Left common carotid • Left subclavian artery

  9. Aortic Arch • Brachiocephalic • Right Common Carotid: head • Internal Carotid: brain • External Carotid: face

  10. Aortic Arch • Brachiocephalic • Right Subclavian: right upper limb • Turns into axillary at armpit • Turns into brachial • Branches into radial and ulnar • Joins back & forms deep palmar arch, superficial palmar arch, and digital arteries

  11. Aortic Arch • Left Common Carotid: head • Internal Carotid: brain • External Carotid: face

  12. Aortic Arch • Left Subclavian: left upper limb • Branches in the same way that Right Subclavian does

  13. Aorta • Descending Aorta • Thoracic Aorta: portion in thorax, above diaphragm. • Abdominal Aorta: below diaphragm; ends as two common iliac arteries

  14. Abdominal Aorta • Celiac Trunk: spleen, stomach, and liver • Renal: Kidneys • Splits into Right & Left Common Iliac Arteries

  15. Right & Left Common Iliac • Splits into… • Internal Iliac Artery: bladder, rectum, genitalia • External Iliac Artery: • turns into Femoral Artery: thigh • Turns into Popliteal Artery: knee area • Branches into Anterior & Posterior Tibial Arteries and Fibial Artery: lower leg & foot

  16. Vein Circulation • Three Major Sections emptying back into right atrium… • Coronary Sinus: Great, Anterior, Small, and Middle Cardiac Veins • Superior Vena Cava • Inferior Vena Cava

  17. Upper Body • Superior Vena Cava: receive blood from head, neck, and upper extremities; splits into… • Right and Left Brachiocephalic • Internal Jugular: Brain • External Jugular: Face • Turns into Subclavian…

  18. Subclavian • Turns into axillary at armpit, which breaks into… • Cephalic • Brachial • Radial • Ulnar • Digital • Basilic • Median Cubital joins it back up with Cephalic; often, a site of drawing blood • Deep palmar arch, superficial palmar arch, and digital veins

  19. Lower Body • Inferior Vena Cava • Hepatic Veins: liver • Hepatic Portal: Takes blood from the digestive tract, spleen, pancreas to the liver • Renal: Kidneys • Splits into Right & Left Common Iliac Veins

  20. Right & Left Common Iliac • Internal Iliac Vein • bladder, rectum, genitalia • External Iliac Vein • Great Saphenous: branches off, runs along femur, longest vein in body • EIV turns into Femoral Vein: thigh • Turns into Popliteal Vein: knee area • Branches into Anterior & Posterior Tibial Veins and Fibular Vein: lower leg & foot

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