Anat and Physio 2: Lab 6 Blood vessels

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Last updated 4:23 PM on 10/14/26
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5 Terms

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Types of Blood vessels

Arteries: blood vessels that carry oxygenated blood away from the heart

  • thick elastic walls made of smooth muscle and connective tissue, thick tunica media, smaller lumen

  • lots of pressure

  • branch into smaller vessels called arterioles

Capillaries: smallest and thinnest bv’s that connect arteries and veins

  • walls made of single layer of endothelial cells

  • facilitate exhange of gases, nutrients and waste products btwn blood and surrounding tissues

Veins: bv’s that carry blood back to the heart

  • thinner walls, thinner tunica media, have valves, larger lumen

  • less pressure

  • branch into larger vessels and become the vena cava’s


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Celiac Trunk (artery)

Superior branch off of the abdominal aorta

  • branches into the left gastric artery, left splenic, and left common hepatic artery

  • organs that it supplies: stomach, spleen, liver, parts of pancreas, and duodenum


<p>Superior branch off of the abdominal aorta</p><ul><li><p>branches into the left gastric artery, left splenic, and left common hepatic artery</p></li><li><p>organs that it supplies: stomach, spleen, liver, parts of pancreas, and duodenum</p></li></ul><p></p>
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Mesenteric Arteries (artery)

Superior:

  • arises from abominal aorta, inch inferior to celiac trunk

  • supplies pancreas, duodenum, small intestine, and large portion of large intestine

Inferior:

  • arises from inferior portion of abdominal aorta

  • supplies sections of colon and rectum


<p>Superior: </p><ul><li><p>arises from abominal aorta, inch inferior to celiac trunk</p></li><li><p>supplies pancreas, duodenum, small intestine, and large portion of large intestine</p></li></ul><p>Inferior:</p><ul><li><p>arises from inferior portion of abdominal aorta</p></li><li><p>supplies sections of colon and rectum</p></li></ul><p></p>
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Hepatic Portal (vein)

  • collects blood from digestive viscera, spleen and pancreas===delivers to liver

  • receives blood from splenic vein, superior mesenteric vein, gastric vein, and inferior mesenteric


<ul><li><p>collects blood from digestive viscera, spleen and pancreas===delivers to liver</p></li><li><p>receives blood from splenic vein, superior mesenteric vein, gastric vein, and inferior mesenteric</p></li></ul><p></p>
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Medial cubital (vein)

Where blood is drawn

branches into: cephalic and basilic vein