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Lab # 3 Blood Vessels Anatomy. Arteries Veins Capillaries They carry blood away from the heart (they are efferent vessels) They carry blood back to (toward)

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Presentation on theme: "Lab # 3 Blood Vessels Anatomy. Arteries Veins Capillaries They carry blood away from the heart (they are efferent vessels) They carry blood back to (toward)"— Presentation transcript:

1 Lab # 3 Blood Vessels Anatomy

2 Arteries Veins Capillaries They carry blood away from the heart (they are efferent vessels) They carry blood back to (toward) the heart (they are afferent vessels They connect the arteries with the veins Blood Vessels Pulmonary veins Pulmonary arteries

3 Lumen Endothelium Tunica media Tunica externa It lines the blood vessel and is exposed to blood. It is simple squamous epithelium overlying. a basement membrane Basement membrane It consists of smooth muscle, collagen, and elastic tissue. It consists of loose connective tissue that often merges with that of neighboring blood vessels, nerves, or other organs. They are small vessels that supply blood to at least the outer half of the larger vessels. Vasa vasorum Nerve Tunica interna The Vessel Wall

4 Veins have a greater capacity for blood containment than arteries. Veins have thinner and flaccid walls and contain less muscular and elastic tissue than the arteries, that is why they can expand easily. In large arteries, blood pressure averages 90 to 100 mm Hg, whereas in veins it averages about 10 mm Hg. Veins, therefore, do not require thick, pressure resistant walls.

5 Pulmonary trunk Left pulmonary arteryRight pulmonary artery Right pulmonary veins Left pulmonary veins Pulmonary Arteries and Veins

6 Diaphragm Aortic hiatus R. common carotid a. Brachiocephalic trunk Ascending aorta Aortic arch Thoracic (descending) aorta (posterior to heart) Abdominal aorta L. subclavian a. L. common carotid a. R. subclavian a. Anterior view Superior vena cava Inferior vena cava Arteries of the Trunk (thorax)

7 Lateral view Arteries of the Head and Neck Internal carotid a. Carotid sinus External carotid a. Vertebral a. Axillary a. Subclavian a. Common carotid a. Brachiocephalic trunk Temporal a. (c) Superficial veins of the head and neck Subclavian v. Thyroid gland Brachiocephalic v. Vertebral v. External jugular v. Internal jugular v. Axillary v. Superficial Veins of the Head and Neck

8 R. and L. posterior communicating arteries Anterior communicating artery Cerebral Arterial Circle or Circle of Willis

9 L. Vertebral a. R. Posterior cerebral a. L. Anterior cerebral a. Anterior communicating a. R. Posterior communicating a. Basilar a. L. Middle cerebral a. L. Posterior cerebral a. L. Posterior communicating a. R. Vertebral a. R. Middle cerebral a. R. Anterior cerebral a. Pituitary gland Optic nerves L. Internal carotid a. R. Internal carotid a.

10 Right brachial artery Right radial artery Right ulnar artery Right axillary artery Right subclavian artery Arteries of the Upper Limb

11 Left subclavian vein Brachial Cephalic Basilic Left Brachio- cephalic vein Left axillary vein Veins of the Upper Limb

12 Radial Ulnar Median cubital Brachial Cephalic Basilic

13 Cephalic vein Axillary vein Axillary artery Basilic vein Brachial vein Brachial artery Median cubital vein Radial artery Basilic vein Median antebrachial vein Ulnar artery Deep palmar arch Superficial palmar arch

14 Spleen Liver Pancreas Arteries of the Trunk (abdomen and pelvis) Celiac trunk Superior mesenteric a. Common iliac a. Inferior mesenteric a. Internal iliac a. Renal a. Gonadal a. Celiac trunk Common hepatic a. Splenic a. L. gastric a. Pancreatic aa. Celiac trunk: 1- Common hepatic artery 2- Splenic artery 3- Left gastric artery

15 Anterior view External iliac Posterior view Femoral artery Popliteal artery Anterior tibial artery Posterior tibial artery Arteries of the Lower Limb

16 Popliteal vein Posterior tibial vein Lesser saphenous Anterior tibial vein Femoral vein Great saphenous Veins of the Lower Limb External iliac vein Posterior view

17 Inferior mesenteric v. Superior mesenteric v. Splenic v. Hepatic portal v. Gastric vv. The hepatic portal system all the blood draining from the abdominal digestive tract, as well as from the pancreas, gallbladder and spleen The hepatic portal system gives the liver first claim to the nutrients before the blood is distributed to the rest of the body It also allows the blood to be cleansed of bacteria and toxins picked up from the intestine The Hepatic Portal System Hepatic veins

18 R. common carotid a. L. common carotid a. L. subclavian a. Aortic arch Ascending aorta R. subclavian a. Brachiocephalic trunk L. axillary a. L. brachial a. Pulmonary trunk Principal Arteries

19 R. brachial a. R. radial a. R. ulnar a. Abdominal aorta a. R. common iliac a. R. external iliac a. R. internal iliac a. L. femoral a. Principal Arteries

20 L. femoral a. L. posterior tibial a. R. anterior tibial a. Principal Arteries

21 R. internal jugular v. L. internal jugular v. L. subclavian v. L. brachiocephalic v. R. subclavian v. Inferior vena cava R. cephalic v. R. brachial v. (cut) R. basilic v. Principal Veins

22 R. cephalic v. R. Radial v. R. Ulnar v. L. common iliac v. Inferior vena cava L. internal iliac v. Principal Veins R. basilic v. R. Median cubital v. L. external iliac v. R. brachial v. (cut)

23 L. great saphenous v. Principal Veins L. femoral v.


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