Unit 5 EXAM: Muscular System - 24-25

Front

Muscle that closes the jaw (chewing muscle)

Back

Masseter: The primary muscle responsible for the elevation of the mandible (jawbone) during chewing.

Front

What muscle is responsible for shoulder abduction?

Back

Deltoids: A large triangular muscle covering the shoulder joint, responsible for lifting the arm away from the body.

Front

What type of movement is characterized by increasing the angle between body parts?

Back

Extension: A movement that increases the angle between two body parts, such as straightening the arm.

Front

What muscle is located at the back of the upper arm?

Back

Triceps Brachii: A muscle with three heads that extends the elbow joint.

Front

What muscle is responsible for turning the head from side to side?

Back

Sternocleidomastoid: A muscle that helps in the rotation and flexion of the neck.

Front

What is the primary function of the biceps brachii?

Back

Flexion of the elbow: The biceps brachii muscle is responsible for bending the elbow.

Front

What muscle group is primarily involved in knee extension?

Back

Quadriceps Group: A group of four muscles located at the front of the thigh that extends the knee.

Front

What is the role of the orbicularis oculi muscle?

Back

Facial expression: This muscle surrounds the eye and is responsible for closing the eyelids.

Front

What is the function of the external obliques?

Back

Trunk rotation: These muscles are located on the sides of the abdomen and help in rotating the torso.

Front

What muscle is involved in the movement of the shoulder joint?

Back

Rotator Cuff: A group of muscles and their tendons that act to stabilize the shoulder.