Circuitry of Cardiovascular System Flashcards

1
Q

Contains STRESSED VOLUME

High Pressure

A

Arteries

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2
Q

Control conduits
May rapidly dilate or constricts
site of GREATEST RESISTANCE

a1 - vasoconstricts
B2 - vasodilates

A

Arterioles

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3
Q

LARGEST TOTAL CROSS-SECTIONAL AREA
SLOWEST blood flow velocity
Has endothelial cells only

METARTERIOLES and PRE-CAPILLARY SPHINCTERS - control blood flow

A

Capillaries

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4
Q
CAPACITANCE VESSELS
Under LOW PRESSURE
HIGHEST PROPORTION OF BLOOD
UNSTRESSED VOLUME
64% of blood found here
A

Veins

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5
Q

Drains proteins and fluids from interstitium carries chylomicrons and involved in immunity and cancer

A

Lymphatic Vessels

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6
Q

Blood flow per 100 g of tissue is GREATEST in

A

Kidneys

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7
Q

Site of HIGHEST OXYGENATION

A

pulmonary artery (100%)

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8
Q

Only arteries that contain DEOXYGENATED BLOOD

A

pulmonary artery and umbilical artery

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9
Q

Only veins that contain OXYGENATED BLOOD

A

pulmonary vein and umbilical vein

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