Term
| In the fetus, what is the site of getting nutrients and getting rid of waste? |
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Definition
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Term
| The placenta is connected to the fetus via the what? |
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Definition
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Term
| If you cut open the umbilical cord what 3 vessels would you see? |
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Definition
| 2 umbilical artieries and 1 umbilical vein |
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Term
| The umbilical arteries go where? |
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Definition
| From the fetal heart to capillaries in the placenta |
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Term
| The umbilcal vein goes where? |
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Definition
| From the placenta to the fetus, thru the umbilicus towards the liver |
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Term
| Umbilical arteries give rise to what? |
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Definition
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Term
| Where are the fetal capillaries located? |
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Definition
| inside the finger-like projections, Chorionic Villi |
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Term
| Chorionic cilli "invade" what organ? |
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Definition
| The uterus, becoming maternal blood sinuses |
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Term
| Where do substances such as O2 cross the placenta? |
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Definition
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Term
| After blood is fully oxygenated by the mother where does it go? |
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Definition
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Term
| There is a branch off of the umbilical vein, where does it empty? And what is the main vessel now called? |
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Definition
Into the fetal hepatic portal vein.
the ductus venosus |
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Term
| Where does the ductus venosus empty? |
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Definition
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Term
| After mixing the high oxygenated with low oxygenated blood this means the fetus exist in what kind of enviroment? |
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Definition
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Term
| What is the foramen ovale? |
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Definition
| A hole in the interatrial septum |
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Term
| Of the blood entering the right atrium (fetus) it may bypass the pulmonary circulation and go where? |
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Definition
| Through the foramen ovale into the left atrium |
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Term
| What is the ductus arteriosus? |
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Definition
| A special fetal structure that goes from the pulmonary trunk to the aorta. |
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Term
| What keeps the foramen ovale open? |
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Definition
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Term
| What happens to the foramen ovale after childbirth? |
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Definition
| Lungs become inflated, there is less resistence for blood flow to lungs. Flap in the foramen ovale closes and within days seals shut |
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Term
| What is the foramen ovale called after it is sealed? |
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Definition
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Term
| What happens to the ductus arteriosus after childbirth? |
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Definition
| There is a decreased blood flow and slowly fills with connective tissue and become a band of tissue |
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Term
| What is the ductus arteriosus called after childbirth? |
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Definition
| The ligamentum arteriosum |
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Term
| What does the ductus venosus become after childbirth? |
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Definition
| ligamentum teres, round ligament of liver |
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Term
| Where do the coronary arteries originate? |
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Definition
| at the base of the aortic semilunar valve |
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Term
| Cardiac veins converge where? |
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Definition
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Term
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Definition
| the weakening of a tissue due to reduced O2 supply (any tissue) |
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Term
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Definition
| ischemia of the myocardium(not heart attack) |
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Term
| An angina pectoris is a warning sign for what? |
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Definition
| problems caused by build up of fatty plaque in the coronary vessels |
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Term
| How is angina pectoris treated? |
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Definition
| with nitroglycerine, which dilates vessels |
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Term
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Definition
| death of tissue due to lack of O2 |
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Term
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Definition
| heart attack caused by thrombus or embolus |
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Term
| The brain gets blood from what 4 arteries? |
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Definition
| 2 internal carotids and 2 vertebrals |
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Term
| All 4 of the arteries that supply blood to the brain feed into what anastomosis? |
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Definition
| Circle of Willis (inferior cerebral circle) |
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Term
| Entire blood supply to the brain starts by branching off where? |
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Definition
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Term
| What is the common site of blood blockage in the brain? |
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Definition
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Term
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Definition
| Cerebral vascular accident |
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Term
| cerberal vascular accident |
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Definition
| stroke, brain attack. any interuption in the cerebral circulation |
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Term
| What are common ways of a CVA occuring |
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Definition
1. embolic: thrombus or embolus (80% of CVA)
2. hemorrhagic |
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Term
| The liver recieves blood from what 2 sources? |
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Definition
1. hepatic artery
2. hepatic portal vein |
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Term
| The hepatic artery carries____. |
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Definition
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Term
| The hepatic portal vein carries _____. |
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Definition
| all the blood returning from capillaries of the digestice tract, liver and spleen |
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Term
| The hepatic artery and hepatic portal vein branch repeatedly into what? |
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Definition
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Term
| Hepatic sinusoids drain into what? |
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Definition
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Term
| The hepatic portal vein is formed by the union of what 2 veins? |
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Definition
| splenic and superior mesenteric |
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Term
| What vein empties into the splenic vein? |
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Definition
| The inferior mesenteric vein |
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