Exam 15: Axial Muscles

Which of the following is not a component of a lever system?

Which of the following muscles has fibers on a transverse plane?

Match each term with its corresponding description. -Tough connective tissue cord connecting muscle to the periosteum of a bone

There are more than ____ skeletal muscles in the body.

Match each muscle with the corresponding description of its action. -Close(s) the eye

The trapezius muscle functions primarily to move the shoulders. However, when the occipital bone acts as the insertion, the trapezius can:

The muscles of facial expression are unique in that at least one of their points of attachment is to the deep layers of skin over the face or neck.

The difference between a tendon and an aponeurosis is that a tendon is composed of connective tissue and an aponeurosis is composed of muscle tissue.

Match each muscle with the corresponding description of its action. -Create(s) smile expression

The type of lever arrangement in which the pull is exerted between the fulcrum and resistance or weight to be moved is a _____-class lever.

Another name for a skeletal muscle cell is a(n):

Groups of skeletal muscle fibers are bound together by a connective tissue envelope called the:

The origin of a muscle is on the femur, and the insertion is on the tibia. When it contracts, it bends the knee. Which of the following is true?

The muscle that draws the eyebrows together, producing vertical wrinkles above the nose (frowning), is called the:

The internal oblique muscle is the deepest muscle in the abdominal wall.

Name four features that are used in the naming of muscles. Give an example of each.

When a muscle contracts, the part of the body that moves is directly under the belly of the muscle.

Tendon sheaths that surround certain tendons have a lining of slick epithelial membrane that reduces friction.

If a muscle causes the knee to bend, the origin point is above the knee and the insertion point is below the knee.

During inspiration, the diaphragm contracts and flattens, which increases the size of the thoracic cavity allowing air to enter the lungs.