Understanding Shoulder Anatomy

What is the primary function of the thorax?

• To support the shoulder joints

• To protect the lungs and heart

• To attach muscles for arm movements

• To articulate with the acromion process

How many joints make up the shoulder?

• Two

• Three

• Four

• Five

Which of the following is NOT a joint in the shoulder?

• SC-joint

• AC-joint

• GH-joint

• TM-joint

What shape is the scapula?

• Circular

• Square

• Triangle

• Oval

How many muscles attach to the scapula to perform arm movements?

• 10

• 15

• 17

• 20

What is the function of the clavicle in relation to the shoulders?

• To protect the heart

• To brace the shoulders and prevent excess forward motion

• To attach to the acromion process

• To maintain the alignment of the ball-and-socket joint

What is the shape of the clavicle?

• Straight

• Circular

• Soft-S Shape

• Triangular

Which joint is formed by the articulation of the clavicle with the acromion process?

• SC Joint

• AC Joint

• GH Joint

• ST Joint

Where is the acromion process located?

• On the top outer edge of the scapula

• At the base of the spine

• On the sternum

• At the center of the clavicle

What does the acromion process help stabilize?

• The thorax

• The shoulder joint

• The spine

• The clavicle