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Flashcards in articulations and ligaments Deck (14)
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1

What are articulations of the pectoral girdle?

Sternoclavicular joint
Acromioclavicular joint
Glenohumeral joint

2

What are the bones of the pectoral girdle?

Clavicle
scapula
humerus

3

What is the sternoclavicular joint?

proximal attachment Where the clavicle is connected to to the manubrium

4

How are the sternum and clavicle connected?

ligaments anteriomedially and posterior medially
with and articular disk in between

5

What are the ligaments of the sterniclavicular joint?

anterior and posterior sternoclavicular ligaments
interclavicular ligament
costoclavicullar ligament

6

What aid the acromioclavicular joint?

joint that is connecting the clavicle to the acromion process of the scapula

7

What are the ligaments that hold the acromioclavicular joint together?

Acromioclavicular ligament
coracoacromial ligament
coracoclavicular ligament (trapezoid and conoid parts)
these are most common in shoulder separations in sports injuries

8

What is the glenohumeral joint?

the round humerus fitting into a flattened glenoid fossa

9

What enlarges the surface area of the glenohumeral joint?

glenoid labrum - fibrocartaligenous that extends around the entire joint and reinforced anteriorly by glenohumeral ligaments

10

How are the glenohumeral joints named?

from superior to inferior

11

What enhances the stability of the glenohumeral joint?

tendon of long head o biceps - superior
muscels and tendons of the rotator cuff - anterior, posterior and superior
acromion - superior

12

Where does most of the dislocations in the shoulder occur?

anteriorly
inferiorly
this has little protection

13

What arteries and nerve can be injured in shoulder dislocations?

Axillary artery and nerve
the glenohumeral joint cant dislocate inferiorly because it weak in that area. once it breaks i is pull inferior to subscapularis

14

Where does breaks most commonly occur at the clavicle?

breaks occur at the lateral end before dislocations happen because the proximal and distal ends are firmly secured