What does the anterior and posterior circumflex humeral artery supply?

It winds around the surgical neck of the humerus and is distributed to the deltoid muscle and shoulder-joint, anastomosing with the anterior humeral circumflex and deep artery of the arm. It supplies the teres major, teres minor, deltoid, and (long head only) triceps muscles.

What is posterior circumflex humeral artery?

The posterior circumflex humeral artery is one of two circumflex humeral arteries that surround the surgical neck of the humerus. It arises from the third part of the axillary artery and supplies the shoulder joint and a number of its associated muscles.

What travels around the surgical neck of the humerus?

The axillary nerve leaves the axilla winding round the surgical neck of the humerus, passing below the shoulder joint. It is accompanied by the posterior circumflex humeral branch of the axillary artery (see Fig. 2.21).

What does the profunda brachii artery supply?

While upper extremity muscles receive vascular supply from more than one artery, the profunda brachii artery assists in supplying blood to the deltoid muscle, triceps brachii muscle, and anconeus muscle.

What muscles does the anterior circumflex humeral artery supply?

Supply. The anterior circumflex humeral artery provides part of the blood supply to the glenohumeral joint, teres major and minor, and deltoid muscles. The ascending branch provides supply to the head of the humerus 1.

What is anterior humeral circumflex artery?

The anterior humeral circumflex artery runs horizontally, beneath the coracobrachialis and short head of the biceps brachii muscle, in front of the neck of the humerus. On reaching the intertubercular sulcus, it gives off a branch which ascends in the sulcus to supply the head of the humerus and the shoulder-joint.

Which nerve is related to surgical neck of humerus?

axillary nerve
The axillary nerve, formed from the posterior cord of the brachial plexus, wraps around the surgical neck of the humerus, and provides innervation to the deltoid and rotator cuff muscles, specifically the teres minor.

What is the function of the surgical neck of the humerus?

It is a clinically important anatomical feature of the humerus as it is the most frequently fractured site of the proximal humerus, putting the axillary nerve and posterior circumflex humeral branch of the axillary artery at risk.

What is a profunda brachii?

The profunda brachii artery is a large posteromedial branch of the brachial artery, distal to the teres major muscle. It accompanies the radial nerve in its course. Distally, it runs posterior to the brachioradialis and anterior to the lateral head of the triceps brachii.