Muscles of the Shoulder and Back

What muscle is this?

• Deltoid
• Biceps brachii
• Trapezius
• Buccinator

The muscle that lies over the head of the humerus and abducts, flexes and extendsnd the shoulder is the

• pectoralis major.
• deltoid.
• triceps brachii.
• biceps brachii.

Shrugging your shoulders uses your

• trapezius.
• triceps brachii.
• latissimus dorsi.
• serratus anterior.

What is the primary job of the rotator cuff muscles?

• Medially rotate the shoulder

• Stabilize the head of the humerus in the glenoid cavity of the scapula

• STHOTHITGC

• Laterally rotate the shoulder

This muscle originates below the spine of the scapula in the infraspinous fossa.

• Infraspinatus 
• Supraspinatus
• Teres major
• Teres minor

Originates above the spine of the scapula in the supraspinous fossa.

• Supraspinatus 
• Infraspinatus
• Teres minor
• Teres major

Which two muscles lie deep to the trapezius and inserts on the medial border of the scapula, inferior to the levator scapula between the spine and inferior angle, has a skewed rectangular shape

• Trapezius

• Rhomboids

• Serratus

• Latissimus dorsi

A large superficial muscle appears diamond-shaped when visualizing both right and left sides.

• Trapezius 
• Latissimus dorsi
• Deltoid
• Rhomboid major

What is the name of this muscle group?

• Rotator Cuff

• Trapezius

• Rhomboids

• Deltoids

What is the name of this muscle group?

• Deltoids

• Trapezius

• Rhomboids

• Rotator Cuff