Muscular System Test REVIEW

Front

What is the orbicularis oris?

Back

The orbicularis oris is a circular muscle around the mouth that controls movements of the lips.

Front

What is the pectoralis major?

Back

The pectoralis major is a large muscle in the chest that is responsible for the movement of the shoulder joint.

Front

What is the gastrocnemius?

Back

The gastrocnemius is a major calf muscle that helps in walking, running, and jumping.

Front

What is the rectus femoris?

Back

The rectus femoris is one of the four quadriceps muscles located in the front of the thigh, involved in knee extension.

Front

What are the hamstrings?

Back

The hamstrings are a group of muscles located at the back of the upper leg, responsible for bending the knee and extending the hip.

Front

What is the function of the masseter muscle?

Back

The masseter is a jaw muscle that plays a key role in chewing by elevating the mandible.

Front

What is the role of the zygomaticus muscle?

Back

The zygomaticus muscle is involved in smiling, as it raises the corners of the mouth.

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 biceps brachii?

Back

The biceps brachii is a muscle located in the upper arm that is responsible for flexing the elbow and rotating the forearm.

Front

What is the function of the triceps brachii?

Back

The triceps brachii is located at the back of the upper arm and is responsible for extending the elbow.