Exam 8: Muscular System

Which of the following muscles is not a muscle of the head and neck?

Tonic contractions provide rapid movement for skeletal muscles.

The thick myofilament of the skeletal muscles is made of

Describe a movement that would be an example of each of the following: flexion,extension,abduction,rotation,and plantar flexion.

The point of contact between the nerve and the muscle fibers it stimulates is called a

The movement that is opposite dorsiflexion is

In an isometric contraction,no movement occurs but the muscle tension increases.

Prolonged inactivity in a muscle can result in disuse hypertrophy.

Twitch contractions play an important role in normal muscle activity.

Endurance training leads to

In order for movement to take place,when the prime mover contracts,the synergist must relax.

The muscle contracts and shortens and the insertion end moves toward the point of origin.This sentence describes

Match each of the terms with its definition or explanation. -Protein that makes up the thick myofilament

Match the body movement term with its definition. -Turns the ankle so the bottom of the foot faces toward the lateral side of the body

If you weigh 120 pounds,your skeletal muscles weigh about

The thick myofilament in a muscle fiber is made of actin.

Energy for muscle contraction is provided when ATP is broken down.

If an injury caused damage to the insertion of the biceps brachii muscle (the anterior muscle of the upper arm),the injury would be nearest

Match the muscles that move the upper extremities and the muscles of the trunk with their function. -Flexes trunk

Trying to lift a car (and failing)is an example of an isotonic muscle contraction.