Muscular System Basics

Front

What is the muscle group located on the front of the thighs?

Back

Quadriceps

Front

Identify the muscle that is responsible for shoulder abduction and is shaped like a triangle.

Back

Deltoid

Front

What happens to a muscle when it contracts?

Back

The muscle gets shorter.

Front

What is the term for increasing the angle at a joint?

Back

Extensor

Front

Identify the muscle that is located in the upper back and helps in moving the shoulder blades.

Back

Trapezius

Front

What is the primary function of the hamstrings?

Back

To flex the knee and extend the hip.

Front

Which muscle is known as the 'six-pack' muscle?

Back

Rectus Abdominis

Front

What is the role of the biceps brachii?

Back

To flex the elbow and supinate the forearm.

Front

What type of muscle is responsible for involuntary movements in the body?

Back

Smooth muscle.

Front

What is the main function of the pectoralis major?

Back

To adduct and medially rotate the arm.