Exam 11: A: Anatomy of the Muscular System

Just as individual bones are the organs of the skeletal system,individual muscles are the organs of the muscular system.

Movement is one of the most distinctive and easily observed "characteristics of life."

Contraction of the internal intercostal muscles elevates the ribs.

Muscles usually originate distal to the point of insertion.

The deltoid muscle is an example of a multipennate muscle.

The deltoid is an example of a muscle named by its shape.

To give stability to the shoulder,both the clavicle and scapula have very limited movement.

Circular muscles are sometimes called sphincter muscles.

A fixator muscle can be seen as another type of synergist muscle.

The gluteus muscles are examples of muscles that are named by location.

Fixator muscles would most likely be found at the origin points of muscles rather than at the insertion points of muscles.

Tendons are continuous with the layer of connective tissue called the epimysium.

Lumbrical muscles are examples of intrinsic muscles of the hand.

The rectus abdominis is an example of a bipennate muscle.

Extrinsic muscles of the hand originate in the wrist.

The masseter and temporalis muscle are muscles of mastication that have opposite functions.

Groups of muscle cells held together by the perimysium are called fascia.

The maintenance of body posture depends only on skeletal muscles and bones.

That which is considered the origin and insertion of a muscle may change under certain circumstances.

The deltoid is an example of a multifunction muscle.