Shoulder Joint (Right side, anterior view)

Question 1

Shoulder Joint

Answer 1

Example of a synovial, ball and ocket type of joint
The joint is very unstable, because the head of the humerus is much larger than the glenoid cavity of the scapula (More than three times the size of the socket)
= dislocation of the humerus

Question 2

Shoulder

Answer 2

Protected from above by the acromion and coracoid processes of the scapula, the clavicle and by various ligaments.

Question 3

Articular capsule of the shoulder Joint

Answer 3

consists of a dense outer fibrous capsule with an inner delicate synovial membrane

Question 4

Long head of the biceps brachii muscle (location)

Answer 4

Location: Originates at the supraglenoid tuberosity of the scapula, with the tendon passing through the articular capsule and it emerges from the capsule to lie in the intertubercular groove of the humerus

Question 5

Long head of the biceps brachii muscle (Function)

Answer 5

Function: Passage of a tendon through a joint capsule is quite unusual, provides strong support over the anterior surface of the head of the humerus and helps to strengthen the should joint

Question 6

Three ligaments of the shoulder

Answer 6

Unite the clavicle, to the acromion and coracoid processes of the scaupula

Question 7

Coracoacromial Ligament

Answer 7

Location: extends from the lateral edge of the coracoid process to the medial border of the acromion
Function: strong, flta, triangular ligament that helps to support the head of the humerus

Question 8

Coracoclavicular Ligament

Answer 8

Location: Passes btwn the coracoid process and the conoid process of the clavicle
Function: extremely strong double ligament that helps to provide great stability of the shoulder joint

Question 9

Acromioclavicular Ligament

Answer 9

Location: extends btwn the acromion process and the clavicle, located over the synovial acromioclavicular joint.

Question 10

Scapular Notch

Answer 10

Location: Btwn the coracoid process and the superior border of the scapula, bridged by the superior transverse scaupular ligament
Function: converting this notch to a foramen for the passage of the suprascapular nerve

Question 11

Shoulder Ligaments

Answer 11

Function: display remarkable strength, muscle tissue will tear, and the bones will fracture before these ligaments are injured.