Muscle Origin, Insertion, and Function

Front

What is the origin of the latissimus dorsi muscle?

Back

The latissimus dorsi originates from the lower six thoracic vertebrae, lumbar vertebrae, sacrum, and iliac crest.

Front

What is the insertion point of the latissimus dorsi muscle?

Back

The latissimus dorsi inserts on the humerus.

Front

What is the primary function of the sartorius muscle?

Back

The sartorius muscle flexes, abducts, and laterally rotates the hip, and also flexes the knee.

Front

What muscle is primarily responsible for extending the arm at the elbow?

Back

The triceps muscle is the primary mover for extending the arm at the elbow.

Front

Where does the brachialis muscle originate?

Back

The brachialis muscle originates from the distal half of the humerus.

Front

Where does the deltoid muscle originate?

Back

The deltoid muscle originates from the end of the clavicle and the scapula.

Front

What is the function of the deltoid muscle?

Back

The deltoid muscle is responsible for shoulder abduction, flexion, and extension.

Front

What is the role of the triceps muscle during arm extension?

Back

The triceps muscle acts as the prime mover during arm extension.

Front

What is the anatomical term for the point where a muscle attaches to a stationary bone?

Back

The origin is the point where a muscle attaches to a stationary bone.

Front

What is the anatomical term for the point where a muscle attaches to a moving bone?

Back

The insertion is the point where a muscle attaches to a moving bone.