Term
| What are the 2 special vessels through umbilical cord? |
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Definition
Umbilical Vein
Umbilical Arteries (2) |
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Term
| What direction does the blood flow through the Umbilical Vein? |
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Definition
From placenta to fetus
(Relatively oxygen and nutrient rich blood) |
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Term
| What direction does the blood flow through the Umbilical Arteries? |
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Definition
From fetus to placenta
(Relatively oxygen and nutrient poor blood) |
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Term
| What does the Umbilical Vein become after birth? |
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Definition
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Term
| What three shunts are in fetal circulation? |
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Definition
Ductus Venosus
Foramen Ovale
Ductus Arteriosus |
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Term
| Where is the Ductus Venosus located? |
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Definition
| Umbilical vein to caudal vena cava |
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Term
| What is the purpose of the Ductus Venosus? |
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Definition
| Bypasses liver since fetus is not eating |
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Term
| Where is the Foramen Ovale located? |
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Definition
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Term
| What is the purpose of the Foramen Ovale? |
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Definition
| Bypasses the lungs since fetus is not breathing |
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Term
| Where is the Ductus Arteriosus located? |
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Definition
| Pulmonary artery to aorta |
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Term
| What is the purpose of the Ductus Arteriosus? |
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Definition
| Bypasses the lungs since fetus is not breathing |
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Term
| After it closes, what is the remnant of the Ductus Venosus known as? |
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Definition
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Term
| After it closes, what is the remnant of the Foramen Ovale known as? |
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Definition
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Term
| After it closes, what is the remnant of the Ductus Arteriosus known as? |
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Definition
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Term
| Definition of Portal Systems |
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Definition
| Blood system from one area (organ) of body to another before general circulation |
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Term
| What does the Hepatic portal vein do? |
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Definition
Collects blood from GIT to liver
Nutrients processed
“Filters” blood – wastes, drugs, part of MPS |
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Term
| Where does the Renal portal vein go? |
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Definition
Hind limbs to renal portal system to kidneys
Lower vertebrates |
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Term
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Definition
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Term
| How many chambers do fish hearts have? |
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Definition
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Term
| How many chambers do amphibian hearts have? |
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Definition
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Term
| How many chambers do most reptile hearts have? |
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Definition
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Term
| What special thing do reptiles have in their ventricles? |
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Definition
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Term
| What special circuit do amphibians have? |
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Definition
| Pulmocutaneous because they also breathe through their skin |
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