As a Muscle Contracts

question 41

Multiple Choice

As a muscle contracts,

• A) it creates energy.
• B) the myofibrils break down.
• C) the sarcomeres extend.
• D) the Z discs move closer together.

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Definitions:

Pepsin

An enzyme in the stomach that breaks down proteins into smaller peptides.

Jejunum

The part of the small intestine between the duodenum and ileum.

Ileum

The final and longest segment of the small intestine, playing a key role in absorbing nutrients and vitamins.

Large Intestine

The final section of the digestive system, responsible for water absorption and feces formation.