What Blood Type Is Considered to Be the Universal Donor

question 25

Essay

What blood type is considered to be the universal donor? Which is the universal recipient? What do these terms mean?

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Definitions:

Pepsinogen

The inactive precursor of pepsin, an enzyme that breaks down proteins in the stomach.

Ileocecal Valve

A valve located between the ileum (last portion of the small intestine) and the cecum (first part of the large intestine) that controls the flow of digested food.

Pyloric Sphincter

A muscular valve regulating the flow of food from the stomach to the duodenum of the small intestine.

Anal Sphincter

A circular muscle that surrounds the anus, controlling the passage of feces out of the body through the anal opening.