Soc 16 Flashcards

1
Q

Vasodilation

A

When veins swell up or dilate; widening of the internal diameter (lumen) of the blood vessel to allow increased blood flow.

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2
Q

Vasocontriction

A

When veins shrink down; narrowing the internal diameter (lumen) of the blood vessel to decrease blood flow.

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3
Q

Cardio- Respiratory

A

The interaction of the heartandlungs to supply oxygen to the muscles during exercise.

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4
Q

What happens when your body has to work harder?

A

Muscles require oxygen and nutrients, such as glycoge, carried by the blood.

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