GROSS ANATOMY

GROSS ANATOMY

PECTORAL REGION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
AC Joint stands for:
A
Sternoclavicular
B
Acromioclavicular
C
Glenohumeral
D
None of the above
Explanation: 

Detailed explanation-1: -The acromioclavicular (AC) joint is formed by the cap of the shoulder (acromion ) and the collar bone (clavicle). It is held together by strong ligaments (figure 1). The outer end of the clavicle is held in alignment with the acromion by the acromioclavicular ligaments and the coracoclavicular (CC) ligaments.

Detailed explanation-2: -What is the AC joint? The acromioclavicular, or AC, joint is a joint in the shoulder where two bones meet. One of these bones is the collarbone, or clavicle. The second bone is actually part of the shoulder blade (scapula), which is the big bone behind the shoulder that also forms part of the shoulder joint.

Detailed explanation-3: -The AC joint is a plane type synovial joint, which under normal physiological conditions allows only gliding movement. As it attaches the scapula to the thorax, it allows an additional range of motion to the scapula and assists in arm movement such as shoulder abduction and flexion.

Detailed explanation-4: -The acromioclavicular joint facilitates raising the arm up over the head and the glenohumeral joint allows for circular movement of the arm. The acromioclavicular joint (AC Joint) is located where the clavicle glides along the acromion, which is at the highest point of the scapula.

Detailed explanation-5: -The AC Joint is formed by the junction of the lateral clavicle and the acromion process of the scapula and is a gliding, or plane style synovial joint. The AC Joint attaches the scapula to the clavicle and serves as the main articulation that suspends the upper extremity from the trunk.

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