What does the thoracoacromial artery innervate?

Supply. Through its four main branches, the thoracoacromial artery contributes arterial supply to the pectoralis major and minor muscles, the anterior part of the deltoid muscle, and dermal sensation overlying the clavipectoral fascia 2.

What does lateral thoracic artery supply?

The lateral thoracic artery supplies the axillary lymph nodes, serratus anterior, pectoralis major, pectoralis minor and subscapularis muscles. Additionally, it can provide blood supply to the breast in females.

Where is the axillary artery?

The axillary artery enters the axilla by passing behind the midpoint of the clavicle on the outer edge of the first rib. The axillary artery is divided into three parts by its relation to pectoralis minor muscle: the first part is proximal to pectoralis minor. the second part is posterior to pectoralis minor.

What muscles does the thoracoacromial artery supply?

The thoracoacromial artery supplies the pectoralis major and minor muscles, a part of the deltoid muscle and the skin overlying the clavipectoral fascia.

What nerve runs with lateral thoracic artery?

The long thoracic nerve (respiratory nerve of Bell) originates from roots C5, C6, and C7 of the brachial plexus and provides motor stimulation to the serratus anterior muscle. It usually can be found adjacent to the lateral thoracic artery’s origin and runs along the serratus anterior.

What major artery is under the arm?

Brachial Artery
Brachial Artery: This artery begins under the pectoralis muscle and travels down the arm. It eventually splits into two arteries (the radial artery and the ulnar artery) at the elbow.

At what point does the axillary artery become brachial?

Axillary artery changes its name to the brachial artery at the level of the inferior border of the teres major muscle.

Which branch of thoracoacromial artery supply the mammaries?

pectoral branch
The Pectoralis Major Myocutaneous Flap The pectoral branch of the thoracoacromial artery provides the main vascular supply to the PM muscle once elevated (see Fig. 68-1). The pectoral branch of the artery courses obliquely and parallel to a line between the acromion process and xiphoid process.

What does the acromial branch of the thoracoacromial artery supply?

Acromial branch: courses over the coracoid process of scapula and pierces and supplies the deltoid muscle, emerging at the superior surface of the acromion. Here, it anastomoses with branches of the suprascapular artery, the deltoid branch of the thoracoacromial artery and the posterior circumflex humeral arteries.

What comes off subscapular artery?

The thoracodorsal branch of the subscapular artery forms an anastomosis with the pectoral branch of the thoracoacromial artery, the internal intercostal and the internal mammary arteries.

What does the subscapular artery split into?

Gross anatomy The subscapular artery originates from the medial surface of the third part of the axillary artery. Circumflex scapular artery (scapular circumflex artery or dorsalis scapulae artery but not to be confused with the dorsal scapular artery): divides into three branches to supply the pectoral girdle.

Where does the thoracoacromial artery originate in the body?

Gross anatomy. Origin. The thoracoacromial artery arises from the second part of the axillary artery located posterior to the pectoralis minor muscle 2. It is the first of two arterial branches which arise from the second part of the axillary artery 1.

Where does the thoracoacromial artery bleed during dissection?

Branches of the thoracoacromial artery that run in the vicinity of the distal clavicle can bleed during the dissection and exposure of the base of the coracoid.

Where does the acromial artery begin and end?

The acromial branch runs lateralward over the coracoid process and under the Deltoideus, to which it gives branches; it then pierces that muscle and ends on the acromion in an arterial network formed by branches from the transverse scapular, thoracoacromial, and posterior humeral circumflex arteries.

Where does the pectoral branch supply the thoracic artery?

Pectoral branch: courses downward between the pectoralis major and minor muscles. After giving off a branch to supply the pectoralis minor, it pierces the posterior surface of the pectoralis major and emerges onto its anterior surface. Here, it anastomoses with the intercostal branches of the internal thoracic and lateral thoracic arteries.