What is the thoracodorsal artery?
The thoracodorsal artery is a terminal branch of the subscapular artery that originates in the axillary region. It runs inferomedially along the lateral border of the scapula, then courses posteriorly passing deep to the latissimus dorsi muscle.
What is the function of the thoracoacromial artery?
The thoracoacromial artery supplies the pectoralis major and minor muscles, a part of the deltoid muscle and the skin overlying the clavipectoral fascia. This article will discuss the anatomy and function of the thoracoacromial artery.
How many branches does the thoracoacromial artery have?
Here, the thoracoacromial artery divides into its terminal branches. The thoracoacromial artery gives off four branches to supply the muscles and skin of the pectoral region; the pectoral, deltoid, clavicular and acromial branches. Pectoral branch: courses downward between the pectoralis major and minor muscles.
Where is the lateral thoracic artery located?
In females, this branch is prominently developed to supply the lateral portions of the breast. The additional accessory lateral thoracic artery is present as a direct branch in 70% from the axillary artery between the origin of the lateral thoracic artery and the subscapular artery.
What does thoracodorsal artery innervate?
The thoracodorsal artery is one of the two terminal branches of the subscapular artery....Thoracodorsal artery.OriginSubscapular arteryBranchesLateral and medial branches, cutaneous branchesSupplyLatissimus dorsi muscle, serratus anterior muscle, subscapularis muscle, teres major muscle, axillary skin
Does thoracodorsal artery supply the breast?
In the female, the highest thoracic artery has an external mammary artery branch that supplies the breast [1]. The thoracoacromial artery is a branch of the axillary artery and it has a pectoral branch that is distributed to the breast.
What artery supplies blood to latissimus dorsi?
thoracodorsal arteryThe latissimus muscle is supplied by the thoracodorsal artery, and branch of the subscapular artery. A nerve, the thoracodorsal, and vein accompany the artery. The latissimus muscle blood supply is via the subscapular artery, a branch of the axillary artery.
What artery supplies the subscapularis?
The subscapularis muscle was supplied by the subscapular, suprascapular and circumflex scapular arteries. The supraspinatus and infraspinatus muscles were supplied by the suprascapular artery. The infraspinatus and teres minor muscles were found to be supplied by the circumflex scapular artery.
What arteries supply breasts?
Breast blood supply comes from three sources: Branches of the axillary artery supply the lateral part of the breast. These are the superior thoracic, thoracoacromial, lateral thoracic and subscapular arteries. Branches of the internal thoracic artery, supply the medial part of the breast as the medial mammary arteries.
What happens if the thoracodorsal nerve is damaged?
An intact thoracodorsal nerve may also cause atrophy of the muscle, which can lead to shoulder and arm weakness that hampers numerous common movements, including standing up from a chair.
What is the latissimus dorsi responsible for?
Functionally, the latissimus dorsi muscle belongs to the muscles of the scapular motion. This muscle is able to pull the inferior angle of the scapula in various directions, producing movements on the shoulder joint (internal rotation, adduction and extension of the arm).
What are the 3 main functions of the latissimus dorsi?
The latissimus dorsi assists in depression of the arm with the teres major and pectoralis major. It adducts, extends, and internally rotates the shoulder.
What is the action and innervation of the latissimus dorsi?
Functionally, the latissimus dorsi muscle belongs to the muscles of the scapular motion. This muscle is able to pull the inferior angle of the scapula in various directions, producing movements on the shoulder joint; internal rotation, adduction and extension of the arm.
What artery supplies the rotator cuff?
The vascular supply to the rotator cuff muscles is mainly via the suprascapular artery, the subscapular artery, and the posterior circumflex humeral artery. The suprascapular artery is a branch of the thyrocervical trunk (a major branch of the subclavian artery) and originates at the base of the neck.
What artery supplies the infraspinatus?
The infraspinatus is supplied arterially by the suprascapular and circumflex scapular arteries. The suprascapular artery either originates from the thyrocervical trunk or the subclavian artery.
Reconstructive surgery : Lower extremity coverage
David H. Song MD, MBA, FACS, in Plastic Surgery: Volume 4: Lower Extremity, Trunk, and Burns, 2018
CONVENTIONAL WORKHORSE FLAPS
The thoracodorsal artery courses from the axilla along the anterior border of the latissimus dorsi muscle, enters the muscle from underneath, and spreads into two or three major branches at the undersurface of the muscle.
Flap classification and applications
Geoffrey C. Gurtner MD, FACS, in Plastic Surgery: Volume 1: Principles, 2018
PRINCIPLES OF RECONSTRUCTIVE SURGERY
Jonathan M. Winograd, Lifei Guo, in Flaps and Reconstructive Surgery, 2009
Oral cavity, tongue, and mandibular reconstructions
Eduardo D. Rodriguez MD, DDS, in Plastic Surgery: Volume 3: Craniofacial, Head and Neck Surgery and Pediatric Plastic Surgery, 2018
Complications of Free-Tissue Transfer
Steven J. Wang, ... Douglas B. Chepeha, in Complications in Head and Neck Surgery (Second Edition), 2009
PRINCIPLES OF RECONSTRUCTIVE SURGERY
The common recipient artery in back reconstruction is the thoracodorsal artery (see Figure 5.1 ). The scapular circumflex artery and a regional intercostal artery are less commonly used (see Figure 5.1; Figures 5.10, 5.11; see also Figures 22.1, Figures 22.2 ).
What is the thoracodorsal artery?
Anatomical terminology. The thoracodorsal artery is a branch of the subscapular artery. It travels inferiorly with the thoracodorsal nerve and supplies the latissimus dorsi .
Which artery travels inferiorly with the thoracodorsal nerve?
Axillary artery and its branches - anterior view of right upper limb and thorax. The thoracodorsal artery is a branch of the subscapular artery. It travels inferiorly with the thoracodorsal nerve and supplies the latissimus dorsi .
Which nerve supplies the teres muscle?
Additionally, the thoracodorsal nerve supplies the teres major muscle in about 13% of people. 1 . The lats have a rare but important anatomical variation called Langer’s arch, which is an extra part that connects to muscles or connective tissue of the upper arm beneath its typical connection point.
What nerve is known to branch off from the posterior cord of the brachial plexus?
Knowing about variants of anatomy is of utmost importance for surgeons so they don’t inadvertently damage a nerve during a procedure. The thoracodorsal nerve is known to branch off from the posterior cord of the brachial plexus from three different points. Additionally, the thoracodorsal nerve supplies the teres major muscle in about 13% of people.
What are the three cords of the plexus?
Along its course through your neck and chest, nerves of the plexus eventually join together and form three cords, the: Lateral cord. Medial cord. Posterior cord.
What nerve is responsible for the motor function of the latissimus dorsi muscle?
Associated Conditions. Rehabilitation. The thoracodorsal nerve, also known as the middle subscapular nerve or the long subscapular nerve, provides motor function to a large triangular muscle in your back called the latissimus dorsi muscle. The thoracodorsal nerve branches out from a part of the brachial plexus. It’s a purely motor nerve.
Which branch of the thoracoacromial artery supplies the deltoid muscle?
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 .
Which artery gives off four branches to supply the muscles and skin of the pectoral region?
The thoracoacromial artery gives off four branches to supply the muscles and skin of the pectoral region; the pectoral, deltoid, clavicular and acromial branches. 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 ...
How long does it take to read a thoracoacromial artery?
Reading time: 3 minutes. Thoracoacromial artery (Arteria thoracoacromialis) The thoracoacromial artery, also referred to as the thoracoacromial trunk, is a short artery that arises from the axillary artery. It is initially found in the axillary region coursing posterior to the pectoralis minor muscle. After piercing the clavipectoral fascia, it ...
Which artery supplies the pectoralis major and minor muscles?
The thoracoacromial artery supplies the pectoralis major and minor muscles, a part of the deltoid muscle and the skin overlying the clavipectoral fascia. This article will discuss the anatomy and function of the thoracoacromial artery.
What is the deltoid branch?
Deltoid branch: courses over the pectoralis minor muscle, being accompanied by the cephalic vein. It runs between the pectoralis major and deltoid muscles, supplying them along the way. The deltoid branch may occasionally arise from the acromial branch of the thoracoacromial artery.
Where is the thoracoacromial artery located?
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. With the second part being the lateral thoracic artery 1 .
Which artery supplies the pectoralis?
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 .
Which artery travels through the medial border of the pectoralis minor muscle?
The thoracoacromial artery travels a short course deep to the medial border of the pectoralis minor muscle and then passes through the clavipectoral fascia. It then divides into four branches including the clavicular, acromial, pectoral, and deltoid branches 2.
