If the Flow Through an Artery Obeys Poiseuille’s Law, Decreasing

question 2

Multiple Choice

If the flow through an artery obeys Poiseuille’s law, decreasing the radius of an artery by a factor of 2 should

• A) Increase the resistance by a factor of 2
• B) Increase the resistance by a factor of 4
• C) Increase the resistance by a factor of 8
• D) Increase the resistance by a factor of 16
• E) Decrease the resistance by a factor of 8

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Definitions:

Phalanges

The bones of the fingers and toes in humans and other vertebrates.

Proximal End

The part of a limb or structure that is closest to the center of the body.

Radius

The radius is one of the two large bones of the forearm, located on the thumb side when the palm is facing up.

Ulna

The longer of the two bones in the forearm, running parallel to the radius and forming the elbow joint at its larger end.