What are the movements of the scapular?
The scapula is an important bone in the function of the shoulder joint. It engages in 6 types of motion, which allow for full-functional upper extremity movement including protraction, retraction, elevation, depression, upward rotation, and downward rotation.
What type of joint is the clavicle and scapula?
synovial joint
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.
What movement is possible at the joint formed by the clavicle and scapula?
The scapulothoracic joint permits gliding movements of the scapula around the fulcrum of the acromioclavicular joint. The scapula moves by gliding against the chest wall. The movements in this joint include elevation, depression, retraction, protraction and superior and inferior rotation of the scapula.
What is the movement of the clavicle?
Axial rotation describes the clavicle rolling anteriorly or posteriorly around its longitudinal axis. This passive movement happens indirectly, whereby the scapular rotation motion is transmitted to the sternoclavicular joint via the coracoclavicular ligament.
What is the scapular joint?
Anatomy. Your shoulder joint is a ball-and-socket joint. The head of the humerus (upper arm bone) is the ball and the scapula (shoulder blade) forms the socket. The scapula and arm are connected to the body by multiple muscle and ligament attachments.
What are the 3 processes of the scapula?
The scapula has three processes: the acromion, the spine, and the coracoid process. Muscle attachments to these landmarks are covered in the “Muscles” section. The ventral surface of the scapula abuts the thoracic rib cage and has a large concavity called the subscapular fossa where the subscapularis attaches.
What type of joint is the clavicle?
The sternoclavicular (SC) joint is a saddle-shaped, synovial joint that serves as the primary skeletal connection between the axial skeleton and the upper limb.
What are the joints formed by the clavicle and their types?
The Sternoclavicular Joint (SC joint) is formed from the articulation of the medial aspect of the clavicle and the manubrium of the sternum. The SC joint is the only true articulation connecting the upper limb to the axial skeleton, and that it’s the least constricted joint in the human body.
What are the movements of acromioclavicular joint?
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.
What type of special movement occurs in your clavicles at your acromioclavicular?
The acromioclavicular (AC) joint is the articulation between the two bones of pectoral girdle; the clavicle and scapula.
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Acromioclavicular (AC) joint.
| Type | Synovial plane joint; multiaxial |
|---|---|
| Movements | Protraction – retraction Elevation – depression Axial rotation |
What are the joints formed by clavicle?
Clavicle, Anterior surface. Articular capsule, Costal tuberosity, Subclavian groove, Articulating cartilage of First Rib, Articulation with Sternum, Deltoid, Tuberosity for Conoid Ligament, Acromion of Scapula, Trapezoid Ligament.
What is the function of clavicle?
clavicle, also called collarbone, curved anterior bone of the shoulder (pectoral) girdle in vertebrates; it functions as a strut to support the shoulder. The clavicle is present in mammals with prehensile forelimbs and in bats, and it is absent in sea mammals and those adapted for running.
What are the 5 joints of the shoulder?
The shoulder girdle is composed of the clavicle and the scapula, which articulates with the proximal humerus of the upper limb. Four joints are present in the shoulder: the sternoclavicular (SC), acromioclavicular (AC), and scapulothoracic joints, and glenohumeral joint.
Is the clavicle connected to the scapula?
The acromioclavicular joint connects the clavicle to the acromion, which is part of the shoulder blade or scapula.
What is the scapula commonly known as?
Introduction. The scapula is a flat, triangular-shaped bone (colloquially as the “shoulder blade”). It is located in the upper thoracic region on the dorsal surface of the rib cage. It connects with the humerus at the glenohumeral joint as well as the clavicle at the acromioclavicular joint to form the shoulder joint.
How many joints does the clavicle have?
two joints
Structure. The clavicle joins the scapula, or shoulder blade, and sternum to form two joints on either end of the bone, which are: Acromioclavicular (AC) joint: The acromioclavicular joint forms between the acromion of the scapula and clavicle at the top of the shoulder, held together by the acromioclavicular ligament.
What is the main function of the clavicle?
The clavicle is a sigmoid-shaped long bone with a convex surface along its medial end when observed from cephalad position. It serves as a connection between the axial and appendicular skeleton in conjunction with the scapula, and each of these structures forms the pectoral girdle.
What type of bone is a scapula?
The scapula is a flat, triangular-shaped bone (colloquially as the “shoulder blade”). It is located in the upper thoracic region on the dorsal surface of the rib cage. It connects with the humerus at the glenohumeral joint as well as the clavicle at the acromioclavicular joint to form the shoulder joint.
What movements normally occur at the acromioclavicular and sternoclavicular joints?
What type of joint is the acromioclavicular joint give two names?
The acromioclavicular joint, or AC joint, is a joint at the top of the shoulder. It is the junction between the acromion (part of the scapula that forms the highest point of the shoulder) and the clavicle. It is a plane synovial joint.
| Acromioclavicular joint | |
|---|---|
| TA2 | 1744 |
| FMA | 25898 |
| Anatomical terminology |
Which are clavicular joints?
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.
What type of bone is scapula?
What is another word for clavicle?
the collarbone
The clavicle, more commonly known as the collarbone, connects your shoulder blade to you sternum.
What are the 8 movements of the shoulder?
This mobility provides the upper extremity with tremendous range of motion such as adduction, abduction, flexion, extension, internal rotation, external rotation, and 360° circumduction in the sagittal plane. Furthermore, the shoulder allows for scapular protraction, retraction, elevation, and depression.
What is the shoulder joint called?
glenohumeral joint
The glenohumeral joint is the one most people think of as the shoulder joint. It is formed where a ball (head) at the top of the humerus fits into a shallow cuplike socket (glenoid) in the scapula, allowing a wide range of movement.