Deep triangular depression on the posterior end of the humerus
Olecranon fossa
Left humerus. Posterior view (olecranon fossa visible at bottom center)
Left humerus. Posterior view (olecranon fossa visible at bottom center)
Details
Identifiers
Latin
fossa olecrani
TA98
A02.4.04.024
TA2
1204
FMA
23450
Anatomical terms of bone
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The olecranon fossa is a deep triangular depression on the posterior side of the humerus, superior to the trochlea. It provides space for the olecranon of the ulna during extension of the forearm.
olecranonfossa is a deep triangular depression on the posterior side of the humerus, superior to the trochlea. It provides space for the olecranon of...
cubital fossa or elbow pit (trochlear notch). The olecranon serves as a lever for the extensor muscles that straighten the elbow joint. The olecranon is situated...
processes (trochlea and capitulum), and 3 fossae (radial fossa, coronoid fossa, and olecranonfossa). As well as its true anatomical neck, the constriction...
elbow joint. The elbow includes prominent landmarks such as the olecranon, the cubital fossa (also called the chelidon, or the elbow pit), and the lateral...
elbow, the ulna has a bony process, the olecranon process, a hook-like structure that fits into the olecranonfossa of the humerus. This prevents hyperextension...
its medial. It is directly inferior to the coronoid fossa anteriorly and to the olecranonfossa posteriorly. In humans, these two fossae, the most prominent...
inferior to the medial supracondylar ridge. It is also proximal to the olecranonfossa. The medial epicondyle protects the ulnar nerve, which runs in a groove...
parts of the humerus that articulate with the ulna and radius. The olecranonfossa (depression that articulates with the radius) is located proximal to...
close to the medial margin of the trochlea, to the margins of the olecranonfossa, and to the back of the lateral epicondyle some little distance from...
orthopaedic input. The posterior fat pad is normally pressed in the olecranonfossa by the triceps tendon, and hence invisible on lateral radiograph of...
(trochlea and capitulum; radial and olecranonfossa). For the ulna and radius, the muscles were from the olecranon process, trochlear notch, anconeal process...
extension. It also prevents the elbow joint capsule being pinched in the olecranonfossa during extension of the elbow. Anconeus also abducts the ulna and stabilizes...
by the presence of a trochlear-form ulnar articulation and a distal olecranonfossa. Pridmore et al find these features sufficient to distinguish it from...
supports strong attachment for the flexor carpi ulnaris muscle. The olecranonfossa is large and deep and there is a prominent trochlear keel, which are...
Epitrochlear fossa is well developed Zona conoidea is broad and shallow Trochlear articular surface exhibits minimal spooling Olecranonfossa is shallow...
medial epicondyle which forms an angle with the condyle, and shallower olecranonfossa, would have given Arctodus a higher degree of forelimb dexterity. Originally...
capitular articular surfaces are the coronoid fossa and radial fossa respectively. A deep olecranonfossa with a thin wall is seen. The trochlea is narrow...
forming, by its junction with the profunda brachii, an arch above the olecranonfossa. As the vessel lies on the brachialis, it gives off branches which...
side of the bone. The olecranonfossa (a depression on the back side of the humerus) was quite shallow, unlike the deeper fossa seen in multituberculates...
beyi while the medial epicondyle is not as prominent in size. The olecranonfossa is small and more circular compared to S. beyi. E. omoensis is represented...
passes to the elbow joint while the ulnar nerve is passing between the olecranon and medial epicondyle of the humerus In the forearm, via the muscular...
therefore is analogous with the acromion of mammals. adductor fossa The adductor fossa or Meckelian orifice in reptiles and dinosaurs is the major opening...
and into the lateral & caudal side of the olecranon, from the humerus and into the lateral side of the olecranon, and from the medial side of the humerus...
the limbs of Kambara is an additional point of consideration. The olecranonfossa and the articular surface of the humerus both suggest a wider range...
than in Trachytherus, and had a characteristic perforation in the olecranonfossa. The entepicondyle, ectepicondyle and supracondylar crest were well...
entire arm length including the hand, and features a poorly developed olecranon (which also forms the elbow joint). The radius is slightly shorter and...