The muscle whose insertion is found on the clavicle and acromion process of the scapula is the trapezius. This large muscle plays a key role in moving, rotating, and stabilizing the shoulder blade, as well as supporting the arm. It is divided into upper, middle, and lower fibers, each contributing to different movements of the shoulder girdle.
The coracoid process and acromion are parts of the scapula bone, which is commonly known as the shoulder blade. The coracoid process is a hook-like structure located on the anterior surface of the scapula, while the acromion is a bony projection that forms the highest point of the shoulder, forming a joint with the clavicle (collarbone).
Originexternal occipital protuberance, nuchal ligament, medial superior nuchal line, spinous processes of vertebrae C7-T12Insertionposterior border of the lateral third of the clavicle, acromion process, and spine of scapula
The acromion process of the scapula articulates with the distal end of the clavicle at the acromioclavicular joint. The clavicle provides attachment points for muscles of the arms and chest, such as the deltoid and pectoralis major muscles.
The acromion process is located at the top portion of the scapula (shoulder blade), specifically at the highest point of the shoulder where it joins with the clavicle (collarbone). It forms the point of the shoulder and provides a bony attachment site for muscles and ligaments that stabilize the shoulder joint.
The glenoid cavity is a shallow depression on the scapula where the head of the humerus articulates to form the shoulder joint. The acromion is a bony process of the scapula that forms the point of the shoulder and articulates with the clavicle to stabilize the shoulder joint.
The acromion process articulates with the clavicle to form the acromioclavicular joint at the top of the shoulder.
The acromion process of the scapula articulates with the lateral end of the clavicle. This joint is called the acromioclavicular joint.
The bones that articulate with the clavicle are the manubrium of the sternal end, and the acromion of the scapula.
The acromial end of the clavicle articulates with acromion of the scapula to form the acromioclavicular joint.Acromion process, in acromioclavicular joint
The joint between the lateral end of the clavicle and the acromion process of the scapula is the acromioclavicular joint. This joint is sometimes abbreviated "AC joint."
The distal aspect of the right clavicle is the part of the right collarbone farthest from the breastbone. The distal clavicle articulates with the acromion process of the scapula.
The lateral end of the clavicle is the one closest to the arm and farthest from the breastbone. It articulates with the acromion process of the scapula.
Acromion process and sternum
The Acromion Process of the Scapula meets the clavicle to form the Acromioclavicular Joint.
The acromion process of the scapula articulates with the distal clavicle. This joint is called the acromioclavicular joint.
The term "acromial" is derived from the Latin word "acromion," which refers to the bony process on the scapula. "Extremity" simply means the outermost or farthest point. So, the "acromial extremity of the clavicle" refers to the end of the clavicle bone that articulates with the acromion process of the scapula.
The lateral third has two surfaces, an upper and a lower; and two borders, an anterior and a posterior.