Relaxation of the Internal Anal Sphincter Is Caused by

question 27

Multiple Choice

Relaxation of the internal anal sphincter is caused by

• A) Nutrients in the ileum
• B) Stretch of the ascending colon
• C) Stretch of the ileum
• D) Stretch of the stomach
• E) Stretch of the sigmoid colon and rectum

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Definitions:

Skeletal Muscle

A type of muscle that is attached to bones and is involved in the mechanics of movement in the body.

Striated

Having stripes or lines, often referring to a type of muscle tissue that appears striped under a microscope.

Actin

A protein that is essential for the contraction of muscle cells and plays a role in various types of cell movement and structure.

Blood

A vital bodily fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away.