Introduction to the Shoulder

Why is the shoulder region susceptible to injury?

• It has a low degree of mobility.

• It is not involved in overhead activities.

• It compromises stability for mobility.

• It is the least used joint in the body.

What type of injuries are common in the shoulder due to its involvement in overhead activities?

• Injuries related to repetitive, overuse-type activities.

• Injuries due to underuse of the shoulder joint.

• Injuries related to high stability activities.

• Injuries that occur due to immobility.

Where is the scapula located?

• On the ventral aspect of the thorax

• On the dorsal aspect of the abdomen

• On the dorsal aspect of the thorax

• On the lateral aspect of the thorax

Which part of the clavicle is known for being a structural weakness and having the largest number of fractures?

• The middle third

• The lateral third

• The medial third

• The point where the clavicle changes shape

What bone serves as a site of attachment for many muscles that act on the shoulder complex?

• Humerus

• Clavicle

• Scapula

• Sternum

Where does the head of the humerus articulate?

• In the deep glenoid fossa

• In the shallow glenoid fossa

• In the fibrocartilaginous glenoid labrum

• In the scapula's acromion

What increases the depth of the articulation of the glenoid cavity?

• The scapula's acromion

• The humerus head

• The fibrocartilaginous glenoid labrum

• The clavicle's lateral end

Which bone is referred to as the "collarbone" in the diagram?

• Sternum

• Clavicle

• Scapula

• Humerus

What is the anatomical term for the shoulder socket shown in the diagram?

• Acromion

• Glenoid

• Coracoid process

• Acromioclavicular joint

Which part is labeled as the "upper arm bone" in the diagram?

• Clavicle

• Scapula

• Humerus

• Sternum