lecture 2 pg 44-54

Question 1

the articulations of the acromioclavicular joint?

Answer 1

acromion process of the scapula

lateral (acromial) end of the clavicle

Question 2

joint movement classification of the acromioclavicular joint?

Answer 2

plane gliding

Question 3

the capsular ligament of the acromioclavicular joint is ____ and _____ so it cant maintain the intergrity of the joint without reinforcing ligaments.

Answer 3

thin and weak

Question 4

what are the three ligaments of the acromioclavicular joint?

Answer 4

superior acromioclavicular
inferior acromioclavicular
coracoclavicular

Question 5

the main 3 characteristics of the superior and inferior acromioclavicular ligaments?

Answer 5

• reinforce the capsular ligament
• prevent the clavicle from losing contact with the acromion process
• extrinsic and acts like a rope

Question 6

what is the ligament that connects the clavicle to the coracoid process of the scapula, and is divided into a conoid and trapezoid portion that attach respectively to the conoid tubercle and the trapezoid line?

Answer 6

coracoclavicular ligament

• it is largely responsible for holding the weight of the scapula from the clavicle and limits protraction, elevation, and rotation of the scapula.
• extrinsic and acts like a rope

Question 7

what is the nerve supply to the acromioclavicular joint?

Answer 7

suprascapular and axillary nerve

Question 8

injuries from a severe blow to the shoulder are known as?

Answer 8

shoulder pointers

Question 9

when both the acromioclavicular and coracoclavicular ligaments are ruptured and the clavicle separates from the scapula, its what grade dislocation?

Answer 9

grade 3 dislocation

-lateral end of clavicle is displaced and easily palpable.

Question 10

articulations of the shoulder or glenohumeral joint?

Answer 10

head of the humerus with the glenoid cavity of the scapula

Question 11

the glenoid cavity is deepened by the presence of fibrocartilage rim known as the?

Answer 11

glenoid labrum

Question 12

articular classification of the shoulder joint?

Answer 12

Ball and Socket

Question 13

the shoulder joint is surrounded by a thin and lax capsular ligament, that has an inferior opening allowing what to exit?

Answer 13

the long head of the biceps brachii

Question 14

what are the 5 ligaments of the shoulder joint?

Answer 14

1. glenohumeral
2. transverse humeral
3. Coracohumeral
4. Coracoacromial
5. Suprascapular

Question 15

which ligament is found in the shoulder joint cavity and strengthens the anterior aspect of the capsule, while helping prevent lateral rotation of the humerus and is intrinsic?

Answer 15

Glenohumeral ligament

Question 16

which ligament spans the intertubercular groove, coverting it into a canal and keeps the long head of the biceps brachii in place?

Answer 16

Transverse Humeral ligament

Question 17

which ligament strengthens the capsule from above, limits lateral rotation of humerus, and extrinsic?

Answer 17

Coracohumeral ligament

Question 18

which ligament attaches to the coracoid process and acromion process of scapula, prevents upwards displacement of head of humerus, and is extrinsic?

Answer 18

Coracoacromial ligament

Question 19

which ligament is small and spans the scapular notch?

Answer 19

suprascapular ligament

Question 20

what is the nerve supply of the shoulder/ glenohumeral joint?

Answer 20

axillary and suprascapular

Question 21

due to the general weakness of the shoulder joint ligaments it is primarily _________ that keep the joint in place.

Answer 21

muscles that primarily stabilize this joint

direct and indirect injuries can cause dislocation

Question 22

what type of dislocation is most common to the shoulder joint?

Answer 22

anterior dislocations

Question 23

the type of dislocation that is usually caused by excessive extension and lateral rotation of the humerus

Answer 23

anterior dislocation