Exam 9: Muscular System

ATP is produced by muscle contraction.

Abduction moves a body part toward the midline of the body.

When a person picks up a 5-pound weight, muscle cells contract less forcefully than when a person picks up a 20-pound weight.

Explain how intercalated disks allow the heart to contract more efficiently.

What type of muscle contraction occurs when someone lifts a book off a desk?

A muscle can be a prime mover or an antagonist, depending on the movement of the joint.

In an isotonic contraction, the bone of origin moves toward the bone of insertion.

Match each muscle with its corresponding description or location. -Muscle on the back of the upper arm that is responsible for elbow extension

Match each muscle to its corresponding location or description. -Muscle that makes up much of the substance of the buttock

Match each term with its corresponding definition or description. -Protein that makes up the thick myofilament

What type of muscle contraction occurs when someone tries to lift a 500-pound weight?

Muscular dystrophy is a muscle disorder caused by a viral infection.

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

Intercalated disks are found in _____ muscle.

The result of endurance training is an increase in the number of blood vessels in a muscle.

The prime mover for bending the elbow is the biceps brachii.

Explain the cause of myasthenia gravis.

Match each muscle to its corresponding location or description. -Group of muscles that includes the biceps femoris

Define isotonic and isometric contractions and give an example of each.

Match each term with its corresponding definition or description. -Movement that points the toes