Exam 9: The Muscular System

In an isotonic contraction,the muscle itself actually shortens.

MATCHING Match each term with its corresponding definition or description. -functional unit of contraction of a skeletal muscle

MATCHING Match each term with its corresponding definition or description. -usually the moving attachment point of a muscle

In the anatomical position,the hands are in the supinated position.

Which type of contraction can be seen in an isolated muscle but plays a minimal role in normal muscle activity?

Explain muscle fatigue,the oxygen debt,and how the oxygen debt is "paid."

Match each muscle to its corresponding location or description. -muscle located on the front surface of the lower leg

MATCHING Match each term with its corresponding definition or description. -structures that separate one sarcomere from another

Almost all of the ATP energy used in muscle contraction is released in the form of heat.

When the elbow is bent,the biceps brachii is the prime mover.

Which type of muscle is characterized by cells with tapered ends and a single nucleus?

Match each muscle to its corresponding location or description. -strap-shaped muscle that runs down the center of the abdomen

Match each muscle with its corresponding description or location. -one of the muscles used to close the jaw

Match each muscle to its corresponding location or description. -muscle group made up of the rectus femoris and the three vastus muscles

The thin myofilaments in a skeletal muscle are composed of actin.

A severe muscle injury can have a negative effect on functioning of the kidneys.

Which substance is stored in the muscle's endoplasmic reticulum and then released when a nerve signal stimulates a muscle fiber?

Myasthenia gravis is an autoimmune disease.

Match each muscle to its corresponding location or description. -muscles that are located between the ribs

The model that is used to explain how a muscle contracts is called the sliding filament model.