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Circulation
Anatomy II, EXCI 254
| Question | Answer |
|---|---|
| What are characteristics of distributing arteries? | 1) high elastin content 2) "dampen" blood pressure |
| What are capillaries made of? | Tunica interna / simple squamous epithelium |
| Capillaries form what vessels? | venules |
| What is the muscular part of the vein | vasa vasorum |
| Name 3 arterial layers | 1) Tunica Interna 2) Tunica media 3) Tunica Externa |
| What is a name given to arterioles? | Resistance vessels |
| What is a particularity of arterioles? | They change diameter/ affect blood pressure |
| Between which vessels are capillaries? | arterioles and venules |
| Which tissues don't contain capillaries? | lining epithelia / cornea / lens /cartilage |
| How many vessels does a metarteriole supply? | 10-100 capillaries |
| From what layer are venules composed? | Tunica interna/ tunica media |
| What structures help blood make its way back to the heart? | pumping of heart / skeletal muscle contraction / valves |
| What are venous valved made of? | 2+ layers of tunica interna |
| How much blood is in the veins at rest? | 60% |
| How much blood is in the arteries at rest? | 15% |
| How much blood is in the capillaries at rest? | 5% |
| What are the celiac trunk arteries? | left gastric artery / splenic artery / common hepatic artery |
| branches of gastroduodenal artery: | greater curvature of stomach duodenum pancreas right gastroepiploic |
| Where is the Superior Mesenteric artery? | L1 inferior to Celiac trunk |
| What does the Superior Mesenteric artery supply? | small/ large intestine head of pancreas |
| What does the Inferior Mesenteric Artery supply? | lower large intestines |
| What are the origins of the suprarenals arteries? | abdominal aorta (L1) inferior phrenic a. renal a. |
| location of gonadal arteries? | L2 |
| location of inferior phrenic artery? | aorta, above celiac trunk |
| What do the external illiac arteries supply? | lower extremities |
| What do the internal illiac arteries supply? | pelvis/perineum |
| What forms the Vena Cava? | Common illiac veins |
| Where is Vena Cava formed? | L5 |
| What does Superior Vena Cava drain? | head, neck, upper limbs |
| What organs does the portal system drain? | GI tract, gall bladder, pancreas |
| What vein drains the spleen? | Splenic vein |
| What are the Hepatic veins between? | the liver and the Inferior vena cava |
| What forms the portal vein? | Superior mesenteric vein Splenic Vein |
| What is the portal vein between? | GI organs + spleen, liver Inferior Vena Cava |
Created by:
Schnee
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