Where is the circumflex humeral artery located?

Gross anatomy The anterior circumflex humeral artery arises laterally from the axillary artery at the proximal part of the arm and travels deep to the short head of the biceps brachii muscle and the coracobrachialis muscle 1.

Which accompanies posterior humeral circumflex artery?

The posterior circumflex humeral artery gives rise to a posterior branch which travels distally to anastamose with the ascending branch of the deep artery of the arm (profunda brachii artery). The main branch anastamoses with the anterior circumflex humeral artery 1.

What does the posterior circumflex humeral artery pass through?

The axillary nerve and the posterior humeral circumflex artery pass through this space from anterior to posterior. The triangular space is an anatomic interval medial to the quadrangular space. Its borders are formed by the long head of the triceps laterally, the teres minor superiorly, and the teres major inferiorly.

What artery wraps around the humerus?

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.

What muscles does the Subscapular artery supply?

Supply

• subscapularis, supraspinatus and infraspinatus muscles.
• latissimus dorsi muscle.
• serratus anterior muscle.

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 the posterior humeral circumflex?

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.

How serious is a blocked circumflex artery?

In less than half of people, it may also supply blood to the sinoatrial nodal artery. With anomalous coronary arteries, the circumflex artery or others may be deformed at birth. Such a defect can present a great danger to the child (especially if taking part in aerobic sports) as it can increase risk for heart failure.

Can you live without a circumflex artery?

Absent left circumflex artery is a benign condition, but patients can present with chest pain and may have myocardial ischaemia or other life-threatening conditions.