Anatomy of the Shoulder Joint

<p>150° (C)</p> Signup and view all the answers

<p>Annular ligament (D)</p> Signup and view all the answers

<p>Trochlea (C)</p> Signup and view all the answers

<p>Olecranon comes out of the olecranon fossa, coronoid process enters the coronoid fossa (B)</p> Signup and view all the answers

<p>They articulate through the radial collateral ligament and capitulum (D)</p> Signup and view all the answers

<p>Radial tuberosity (D)</p> Signup and view all the answers

<p>Coracobrachialis (A)</p> Signup and view all the answers

<p>Distal epiphysis (D)</p> Signup and view all the answers

<p>Stability of the glenohumeral joint (C)</p> Signup and view all the answers

<p>Brachialis (A)</p> Signup and view all the answers

<p>Ball and socket joint (B)</p> Signup and view all the answers

<p>Medial and lateral heads (A)</p> Signup and view all the answers

<p>Posterior surface of the humerus, inferior to the radial groove (A)</p> Signup and view all the answers

<p>Enables supination and pronation of the forearm (D)</p> Signup and view all the answers

<p>Biceps brachii, brachialis, and brachioradialis (B)</p> Signup and view all the answers

<p>Anterior, intermediate, and posterior fibers (B)</p> Signup and view all the answers

<p>They limit adduction and abduction movements (D)</p> Signup and view all the answers

<p>Just below the deltoid tuberosity of the humerus (B)</p> Signup and view all the answers

<p>Adds stability to the radioulnar joint (A)</p> Signup and view all the answers

<p>Palmar radiocarpal ligament and palmar ulnocarpal ligament (B)</p> Signup and view all the answers

<p>Collateral ligaments along with anterior and posterior ligaments (B)</p> Signup and view all the answers

The connection between the humerus and radius bones in the elbow joint, specifically occurring at the capitulum (humerus) and the head of the radius.

The articulation between the humerus and ulna, primarily through the trochlea (humerus) and the trochlear notch (ulna).

Bending of the forearm at the elbow joint, where the trochlear notch moves relative to the trochlea.

Straightening of the forearm at the elbow joint, with the olecranon moving into the olecranon fossa and the coronoid process exiting the coronoid fossa.

Supporting structures of the elbow joint, including the medial collateral ligament (ulnar), lateral collateral ligament (radial), and annular ligament.

The three bones comprising the true elbow joint: the humerus, radius, and ulna.

Projections of the humerus, acting as origins for many forearm muscles.

A part of the distal humerus, serving as an articular surface for the ulna during elbow movement.

Allows supination and pronation of the forearm by rotating the radius around the ulna.

The elbow joint can only flex and extend.

The radiocarpal joint has ligaments (collateral, anterior, posterior) to limit excess movement during flexion and extension.

The triangular fibrocartilage complex (TFCC) connects the ulna to the wrist joint, increasing wrist stability.

Radial and ulnar collateral ligaments stabilize the wrist by limiting adduction and abduction, preventing excessive movement.

Palmar radiocarpal and palmar ulnocarpal ligaments form the anterior ligamentous complex, further stabilizing wrist flexion and extension.

The biceps brachii, brachialis, and brachioradialis are the three key muscles responsible for elbow flexion.

The medial collateral ligament (MCL) has anterior, posterior, and intermediate fibers.

The upper end of the humerus, forming the glenohumeral joint and having attachment sites for muscles (greater & lesser tubercles).

A bony bump on the radius where the biceps brachii tendon attaches.

Originates from the coracoid process of the scapula, a bony part of the shoulder.

Attaches to the ulna tuberosity.

Has three heads (long, lateral, medial) with different scapular and humeral origins that converge at a single tendon.

Inserts into the olecranon process of the ulna.

The lower end of the humerus, articulating with the ulna and radius to form the elbow joint.

Where a muscle ends and attaches to a bone.