Exam 8: The Muscular System

Fibromyalgia is a painful disorder affecting the fibrous connective tissue components of muscles, ligaments and tendons commonly appearing in individuals between the ages of 25 and 50.

Which of the following muscles is not part of the quadriceps femoris group?

A skeletal muscle must be stimulated by a motor neuron in order to contract.

Each skeletal muscle fiber is directly controlled by two or more motor neurons.

The immediate direct source of energy for skeletal muscle contraction is

Which of the following events occurs during the latent period of a twitch contraction in a skeletal muscle?

Antagonists are the prime movers of bones during a movement, while synergists oppose the desired movement.

All of the following are muscles of the lower limb EXCEPT the

Calcium binds to a protein found in the thick filaments to start the muscle contraction process.

The muscle that presses the cheeks against the teeth and lips during whistling, blowing or sucking is the

Which of the following muscles adducts the thigh and flexes the leg at the knee joint?

A condition in which an individual becomes abnormally preoccupied with the appearance of their musculature is called

Tunnel-like extensions of the sarcolemma into a skeletal muscle fiber are called

The pigmented protein in skeletal muscle fibers that stores oxygen is called

All of the following are common proteins found in skeletal muscle filaments EXCEPT

The plasma membrane of a skeletal muscle fiber is called the

All of the following are characteristics of fast glycolytic (FG)skeletal muscle fibers EXCEPT

The infraspinatus muscle is a muscle that moves the

Which of the following is a cranial muscle that produces facial expressions?

Muscle tissue plays a major role in maintaining body position during activities such as standing and sitting.