Humerus
Humerus
Humerus (pronounced: /ˈhjuːmərəs/) is the long bone in the upper arm or forelimb that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections, the upper end, shaft and the lower end.
Etymology
The term "humerus" is derived from the Latin humerus, meaning upper arm, shoulder, and is related to the Greek ὦμος (ômos), meaning upper arm, shoulder.
Anatomy of the Humerus
The humerus is divided into three main sections:
1. Proximal end: The upper end of the humerus consists of the head, neck, and two tubercles (the greater and lesser tubercle). The head of the humerus connects with the scapula to form the shoulder joint.
2. Shaft: The shaft of the humerus is the long, cylindrical, main part of the bone. It has a roughened area, the deltoid tuberosity, where the deltoid muscle attaches.
3. Distal end: The lower end of the humerus consists of the capitulum, trochlea, olecranon fossa, coronoid fossa, and radial fossa. The capitulum and trochlea are part of the elbow joint, connecting the humerus with the radius and ulna.
Related Terms
- Scapula: The shoulder blade, a flat, triangular bone located at the back of the shoulder.
- Radius: One of the two bones of the forearm, located on the thumb side.
- Ulna: The other bone of the forearm, located on the side of the little finger.
- Deltoid muscle: A large, triangular muscle covering the shoulder joint.
See Also
External links
- Medical encyclopedia article on Humerus
- Wikipedia's article - Humerus
This WikiMD article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski