Exam 11: A: Anatomy of the Muscular System

Muscle cells and muscle fibers are interchangeable terms.

Tendons are often continuous with the endosteum of bone tissue.

The sternocleidomastoid muscle is an example of a muscle named by the number of heads.

The two levator ani and coccygeus muscles form most of the pelvic floor.

Muscles are sometimes named to reflect their function.

The gastrocnemius and soleus muscles act as antagonists.

The soleus muscle is responsible for plantar flexion.

Muscles that move the thigh and lower leg can be divided into two groups,muscles that come from the hips and those that come from the gluteal muscles.

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

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

In a first-class lever,the fulcrum lies between the pull and the load.

The two parts of the epicranium are connected by an aponeurosis.

Tendons and aponeuroses are both fibrous tissue extending from a muscle.

Muscle can have only one origin attachment and one insertion attachment.

Both the pectoralis minor and the serratus anterior help hold or "fix" the scapula in place.

Muscles usually act singly as a prime mover.

In a second-class lever,the pull is exerted between the fulcrum and the load.

The two muscle layers of the anterior and lateral abdominal wall have fibers running in different directions.

The Achilles tendon is common to both the gastrocnemius and the soleus.

The respiratory,digestive,circulatory,excretory,and endocrine systems all contribute to the ability of muscles to maintain posture.