Glenoid cavity
Glenoid Cavity
The Glenoid Cavity (pronounced: /ˈɡliː.nɔɪd ˈkæv.ɪ.ti/), also known as the Glenoid Fossa or Glenoid Labrum, is a part of the Scapula or shoulder blade in the human body. The term "Glenoid" is derived from the Greek word "glenoeides", meaning socket-like.
Etymology
The term "Glenoid" comes from the Greek word "glenoeides", which means socket-like. The term "Cavity" is derived from the Latin word "cavitas", which means a hollow or hole.
Description
The Glenoid Cavity is a shallow, pear-shaped socket located on the lateral angle of the Scapula. It is where the head of the Humerus (the upper arm bone) fits in to form the Glenohumeral joint or shoulder joint. This cavity is covered with a layer of cartilage and is surrounded by a fibrocartilaginous rim known as the Glenoid Labrum, which deepens the socket and provides stability to the joint.
Related Terms
- Scapula: Also known as the shoulder blade, it is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone).
- Humerus: The bone of the upper arm or forelimb, forming joints at the shoulder and the elbow.
- Glenohumeral joint: Also known as the shoulder joint, it is a ball and socket joint between the glenoid cavity of the scapula and the head of the humerus.
- Glenoid Labrum: A fibrocartilaginous rim attached around the margin of the glenoid cavity in the shoulder blade.
External links
- Medical encyclopedia article on Glenoid cavity
- Wikipedia's article - Glenoid cavity
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