by Mayra Crona
Published 2 years ago
Updated 2 years ago
The radial fossa is a slight depression found on the humerus above the front part of the capitulum
capitulum
In human anatomy of the arm, the capitulum of the humerus is a smooth, rounded eminence on the lateral portion of the distal articular surface of the humerus. It articulates with the cupshaped depression on the head of the radius, and is limited to the front and lower part of the bone.
https://en.wikipedia.org › wiki › Capitulum_of_the_humerus
. It receives the anterior border of the head of the radius when the forearm is flexed.
What inserts into radial fossa?
The insertion is a long crest of bone on the lateral ulna known as the crista supinatorum.
What sits in the radial fossa?
Just above the capitulum (which articulates with head of radius) at bottom of humerus laterally. When the arm is bent (ie elbow hinge joint flexed), the front part of radial head sits in it (limiting further flexion).
What structure does the radial fossa receive?
Anatomical Parts Above the front part of the capitulum is a slight depression, the radial fossa, which receives the anterior border of the head of the radius, when the forearm is flexed.
What does the radial fossa of the humerus articulate with?
part of ulna …of the trochlear notch, the coronoid process, enters the coronoid fossa of the humerus when the elbow is flexed. On the outer side is the radial notch, which articulates with the head of the radius.
What muscles are supplied by the radial nerve?
Along its course in the arm region, the radial nerve provides muscular branches that innervate the triceps brachii, anconeus, and brachioradialis muscles.
What does radial nerve supply?
The radial nerve is a nerve in the human body that supplies the posterior portion of the upper limb. It innervates the medial and lateral heads of the triceps brachii muscle of the arm, as well as all 12 muscles in the posterior osteofascial compartment of the forearm and the associated joints and overlying skin.
What passes through the cubital fossa?
As stated above, the brachial artery passes through the cubital fossa, bifurcating into the radial and ulnar arteries at the distal apex of the fossa.
Which portion of the humerus articulates with the radial head?
Anatomy. The radial head articulates with the capitellum of the distal humerus and the ulna (proximal radial ulnar joint). The radial head is a secondary stabilizer of the elbow joint along with the radial and lateral ulnar collateral ligaments and the annular ligament.
What fits into coronoid fossa of humerus?
The coronoid fossa is located superior to the trochlea and accommodates the coronoid process of the ulna and superior to the capitulum on the anterior surface of the condyle, which is the radial fossa which receives with the head of the radius, both upon flexion of the elbow joint.
Which fossa on the humerus articulates with the head of the radius quizlet?
Glenoid fossa/cavity articulates with the head of the humerus to form the glenohumeral joint.
What fits into coronoid fossa of humerus?
The coronoid fossa is located superior to the trochlea and accommodates the coronoid process of the ulna and superior to the capitulum on the anterior surface of the condyle, which is the radial fossa which receives with the head of the radius, both upon flexion of the elbow joint.
What parts of the radius and ulna fit into which Fossae depressions of the humerus?
The capitulum laterally articulates with the radius; the trochlea, a spool-shaped surface, articulates with the ulna. The two depressions—the olecranon fossa, behind and above the trochlea, and the coronoid fossa, in front and above—receive projections of the ulna as the elbow is alternately straightened and flexed.
Where does Brachioradialis attach?
styloid process of radiusBrachioradialis muscleOriginLateral supracondylar ridge of humerus, lateral intermuscular septum of armInsertion(Proximal to) styloid process of radiusActionElbow joint: Forearm flexion (when semi pronated)InnervationRadial nerve (C5-C6)Blood supplyRadial artery, radial recurrent arteries, radial collateral artery1 more row•May 11, 2020
Where is the radial notch located?
the ulnaThe radial notch of the ulna (lesser sigmoid cavity) is a narrow, oblong, articular depression on the lateral side of the coronoid process; it receives the circumferential articular surface of the head of the radius. Upper extremity of left ulna.
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