Muscles of the Trunk and neck

This muscle (K) flexes your neck. It can also rotate the head toward the shoulder and tilt the head to the side.

• Platysma

• Sternocleidomastoid

• Trapezius

This triangle-shaped muscle (A) forms the rounded shape of your shoulders, abducts the arm, and is a favorite injection site.

• Trapezius

• Deltoid

• Pectoralis major

This large fan-shaped muscle (B) covers the upper part of the chest. It adducts and flexes the arm.

• Trapezius

• Deltoid

• Pectoralis major

The deepest muscles (B) of the abdomen run horizontally across the abdomen.

• External oblique

• Rectus abdominis

• Transversus abdominis

These muscles (C) run diagonally and are the deeper of two similar muscles.

• External oblique

• Internal oblique

• Rectus abdominis

These muscles (D) are the most superficial of the diagonal muscles.

• External oblique

• Internal oblique

• Rectus abdominis

These diamond-shaped muscles (A) of the upper back extend the head, elevate, adduct, and stabilize the scapula.

• Deltoid

• Trapezius

• Latissimus dorsi

The two large, flat muscles (D) that cover the lower back, extend and adduct the humerus.

• Deltoid

• Trapezius

• Latissimus dorsi

This muscle has fibers that runs parallel to the midline over the abdominal girdle. It is known as the "six pack" muscle

• External Oblique
• Transverse Abdominis
• Rectus Abdominis

What is the name of this muscle that elevates the scapula?

• Supraspinatus

• Levator Scapulae

• Rhomboids