What are the names of the shoulder girdle?
The shoulder is made up of three bones: the scapula (shoulder blade), clavicle (collarbone) and humerus (upper arm bone).
What are the 4 main bones of the shoulder?
The bones of the shoulder consist of the humerus (the upper arm bone), the scapula (the shoulder blade), and the clavicle (the collar bone).
What are the 4 joints of the shoulder girdle?
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.
What are the shoulder girdle muscles?
Three main groups of muscles in the shoulder participate in the control of arm movement: (a) trapezius, levator scapula, rhomboid, serratus anterior, which arise from the main skeleton and insert on the scapula, moving and stabilizing this structure; (b) the rotator cuff muscles: teres minor, infraspinatus.
What is shoulder girdle pain?
Shoulder girdle pain can be acute or chronic and be due to a number of causes. Inflammation or injury of associated tendons, bone, muscles, nerves, ligaments, and cartilage can all cause pain. Also, past injury compensation, and stress can result in complicated shoulder pain.
What are the parts of your shoulder?
Your shoulder is made up of three bones: your upper arm bone (humerus), your shoulder blade (scapula), and your collarbone (clavicle). The head of your upper arm bone fits into a rounded socket in your shoulder blade.
How many bones are found in the shoulder girdle?
The shoulder girdle is four bones, two collar bones (clavicle) and two shoulder blades (scapula). These four bones make up the shoulder girdle as well as the shoulder socket. The shoulder girdle ideally hangs from the head suspended over the rib cage without either the collar bones or scapula touching the ribs.
What are the bones found in the shoulder?
The bones of the shoulder consist of the humerus (the upper arm bone), the scapula (the shoulder blade), and the clavicle (the collar bone) .
What is clavicle bone name the bones in shoulder?
the clavicle extends across the front of the shoulder from the sternum to the scapula.
What is the bone in your shoulders called?
The bones of the shoulder are the humerus (the upper arm bone), the scapula (the shoulder blade), and the clavicle (the collar bone). The roof of the shoulder is formed by a part of the scapula called the acromion . There are actually four joints that make up the shoulder.
What are the three joints of the shoulder girdle?
The shoulder girdle consists of three bones (clavicle, scapula, and humerus) and three joints (sternoclavicular, acromioclavicular, and glenohumeral) as shown in Fig.
What type of joint is the shoulder joint?
socket synovial joint
The glenohumeral joint is the main articulation of the shoulder joint. It is the multiaxial ball-and-socket synovial joint formed by the articular surfaces of the glenoid cavity and the head of the humerus. The glenoid cavity depth is increased by a rim of fibrocartilage that surrounds it.
What are the girdles name them?
There are two types of girdles in human body. They are pectoral girdle and pelvic girdle. Pectoral girdle is shoulder girdle and is made up of collar bones and shoulder blades. Pelvic girdle is the hip girdle.
What are the 5 joints of the shoulder?
- 3.1 Glenohumeral Joint.
- 3.2 Acromioclavicular joint.
- 3.3 Sternoclavicular Joint.
- 3.4 Scapulothoracic Joint.
- 3.5 Bursae.
- 3.6 Soft Tissue (Static & Dynamic)
What are the 4 joints of the shoulder?
Four joints are present in the shoulder: the sternoclavicular (SC), acromioclavicular (AC), and scapulothoracic joints, and glenohumeral joint.
What is the difference between shoulder girdle and shoulder joint?
Both are a part of the shoulder girdle. The acromion is an extension of the shoulder blade (scapula). The shoulder joint (also called the glenohumeral joint) is formed between the upper arm bone (humerus) and its socket (the glenoid fossa), which is also an extension of the shoulder blade.
What is a shoulder girdle?
A pectoral girdle, also referred to as the shoulder girdle, connects your upper limbs to the bones along the axis of your body. The pectoral girdle consists of the two bones that make up your shoulder: clavicle, or collarbone. scapula, or shoulder blade.
Which joint of the shoulder complex is the weakest?
The weakest area of the shoulder joint capsule is just anterior to the attachment of the long head of the triceps at the infraglenoid tubercle, and disloca- tions are most frequent in this inferior anterior region.
What is the front of the shoulder called?
The clavicle is the only bony attachment between the trunk and the upper limb. It forms the front portion of the shoulder girdle and is palpable along its entire length with a gentle S-shaped contour. The clavicle articulates at one end with the sternum (chest bone) and with the acromion of the scapula at the other.
Is the shoulder considered a major joint?
The glenohumeral joint is what most people think of as the shoulder joint. It’s the major joint in the shoulder, where the rounded top, or head, of the humerus, nestles into a rounded socket of the scapula, called the glenoid. This ball-and-socket construction allows for circular movement of the arm.
Are there three joints in the shoulder girdle?
Clinical Anatomy For Dummies. The shoulder and arm bone are joined together by ligaments. The joints allow the shoulder to move your arm up and down, in circles, in front, and toward the back. You may think of the shoulder as one joint, but there are three in the pectoral girdle: sternoclavicular, acromioclavicular, and glenohumeral.
Which is the superior border of the shoulder girdle?
The superior border is the thinnest and shortest of the three borders. As highlighted in the introduction, the true joints or anatomical joints of the shoulder girdle are the sternoclavicular joint, acromioclavicular joint and the glenohumeral (shoulder) joint. The acromioclavicular joint (AC joint) is a plane type of synovial joint.
Where are the ligaments located in the shoulder girdle?
There are three joints in the shoulder girdle. One joint is where the head of the humerus articulates inside the glenoid cavity of the scapula, called the glenohumeral joint which includes the ligaments, tendons and muscles attached to these two bones.
How many bones are in the pectoral girdle?
The shoulder girdle or pectoral girdle is the set of bones in the appendicular skeleton which connects to the arm on each side. In humans it consists of the clavicle and scapula; in those species with three bones in the shoulder, it consists of the clavicle, scapula, and coracoid.