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34 Cards in this Set

  • Front
  • Back
Pulmonary circuit
consists of all blood vessels w/in the lungs and those connecting the lungs w/the heart.
Systemic circuit
encompasses the rest of the blood vessels in the body.
Both the pulm and sys circuits are supplied w/blood by different sides of the ______.
r. side
The _______ side of the heart supplies blood to pulmonary circuit.
l. side
The _______ side of the heart supplies blood to systemic circuit.
Blood on one side of the heart _______ mixes w/blood on the other side.
The ______ is two separate pumps housed w/in the same organ.
Capillary beds
Pulm and sys circuits both possess dense network of capillaries.
This is where exchange nutrients and gases (O2 and CO2) take place.
pulmonary circuit
In the __________ _________, O2 moves into blood from air in the lungs while CO2 leaves the blood.
Oxygenated blood
When the blood leaves pulmonary capillaries, it is rich in O2 and is called ____________ ________.
systemic circuits
Capillary beds in __________ ________ are located in all organs in the body except the lungs.
systemic circuit
In organs of the __________ ________, cells consume oxygen & generate CO2, so O2 leaves the blood and CO2 enters. This is deoxygenated blood.
Deoxygenated blood
____________ _______ is relatively low in oxygen.
the color
When oxygenated blood becomes deoxygenated, or visa versa, what changes?
Oxygenated is ________ red, and deoxygenated is _______ red.
Deoxygenated blood
____________ ______ is called blue because it imparts a bluish color to veins visible beneath the skin.
L. vent.
vena cavae
The ______ __________ pumps oxygenated blood into the AORTA. The blood becomes deoxygenated in the ___________ tissues and travels back to the heart via the _______ ________.
sup. vena cava
inf. vena cava
The ___________ ______ ______ carries blood from parts of the body above the diaphram, and ____________ _______ _______ carries blood from body below the diaphram.
r. atrium.
From the _______ _______, blood passes through the tricuspid valve into the right ventricle.
r. ventricle
pulmonary arteries.
In the ________ ___________, blood is pumped into the pulmonary trunk, which branch into ____________ _________.
L. atrium
pulmonary veins
Blood becomes oxygenated in the lungs and then travels to the ______ _______ in the ____________ ______.
a major artery whose branches carry blood to capillary beds of all organs and tissues in the systemic circuits.
vena cavae
2 large veins that carry blood into the r. atrium.
pulmonary arteries
carry ONLY deoxygenated blood away from the heart and toward the lungs.
Pulmonary veins
Carry ONLY oxygenated blood from the lungs to the heart.
L. atrium
From the ______ _______, blood passes through the bicuspid valve into the L. vent. The whole cycle repeats.
parallel flow
In __________ _____, blood does NOT flow from one organ directly to the next. Blood travels through the ______ & the _________ that branches off it to reach only 1 organ at a time before flowing through veins that converge to either the sup. or inf. vena cava.
Parallel flow
Happens in both sys and pulm circuits.
The _______ is in parallel w/the other organs in the systemic circuit. This organ doesn't get the oxygen or nutrients that are pumped in the chambers. It gets its nutrients and oxygen from the ____________ arteries.
Coronary arteries
branch off the aorta near its base & run through the heart muscle.
The parallel arrangement of organs in the __________ circuit confers 2 distinct advantages.
1. It has its own fully oxygenated blood supply.
2. Blood reaches the organs via parallel paths, blood flow to the organs can be independently regulated, enabling blood flow to be adjusted to match the constantly changing metabolic needs of organs. In other words, blood flow can be increased to more active organs and decreased to less active organs.
What are the 2 advantages of parallel flow in the systemic circuit?
capillary beds
Although parallel flow is the norm for the systemic circuit, in some exceptions to the rule, blood flow in series btwn 2 __________ _____.
portal circulation
A ________ ___________ is one in which blood flows from one cap bed in another before returning to the heart. Examples are btwn the intestines and liver & also within the kidneys.