Anatomy of Circulatory System Lab Terms Flashcards Preview

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Flashcards in Anatomy of Circulatory System Lab Terms Deck (12)
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1
Q

Pulmonary Circulation

A

Composed of the blood vessels that carry blood to and from the lungs; serves gas exchange
Right side of the heart is the pulmonary circuit pump. Blood returning from the body is relatively oxygen-poor and carbon dioxide-rich. It enters the right atrium and passes into the right ventricle, which pumps it to the lungs via the pulmonary trunk. In the lungs, the blood unloads carbon dioxide and picks up oxygen. The freshly oxygenated blood is carried by the pulmonary veins back to the left side of the heart.

Important note: veins in this system carry oxygen-rich blood to the heart and the arteries carry oxygen-poor blood away from the heart to the lungs

**served by the right ventricle, a short & low-pressure circulation

pulmo = lungs

2
Q

Systemic Circulation

A

Occurs on the left side of the heart. Freshly oxygenated blood leaving the lungs is returned to the left atrium and passes into the left ventricle, which pumps it into the aorta. From there the blood is transported via smaller systemic arteries to the body tissues, where gases and nutrients are exchanged across the capillary walls. Then the oxygen-depleted/carbon dioxide-rich returns through the systemic veins to the right side of the heart, where it enters the right atrium through the superior and inferior venae cavae

associated with the left ventricle, takes a longer pathway throughout the entire body and encounters about 5xs as much friction, or resistance to blood flow

3
Q

Oxygenated Blood

A

Oxygen-rich blood

4
Q

Deoxygenated Blood

A

Oxygen-depleted blood

5
Q

Venous Blood

A

in the systemic circuit is deoxygenated and runs blood from the outskirts of the body towards the heart so the blood can then be pumped towards the lungs

6
Q

Arterial Blood

A

typically oxygen rich blood in the systemic circuit which moves from the heart to the organs

7
Q

Ductus Arteriosus

A

Shunt between right ventricle and aorta

8
Q

Foramen Ovale

A

an opening in the interatrial septum loosely closed by a flap of tissue. Allows the flow of blood that enters the right atrium directly into the left atrium; bypasses pulmonary circuit

9
Q

Umbilical Arteries

A

low oxygenation blood towards the placenta

10
Q

Umbilical Vein

A

large umbilical vein carries freshly oxygenated blood returning from the placenta into the embryonic body, where it is conveyed to the liver. There, some of the returning blood percolates through the liver sinusoids and out the hepatic veins. Most of the blood coursing through the umbilical vein, however, enters the ductus venosus

11
Q

Transfers most blood from right ventricle to the aorta

A

Ductus Arteriosus

12
Q

Associated with the interatrial septum and allows blood to move from the right atrium to the left atrium

A

Foremen Ovale