What is the blood supply to the pectoralis major?
What is the blood supply to the pectoralis major?
The lateral thoracic artery, in addition to the pectoral branch, contributed significantly to the vascularity of the pectoralis major muscle and was the main blood supply to the female breast. The skin overlying the muscle was abundantly supplied from the muscle vasculature.
What is a pectoralis flap?
The pectoralis major flap comprises the pectoralis major muscle, with or without overlying skin, and may include the under- lying ribs. It has an axial blood supply and is based superiorly on the pectoral branch of the thoracoacromial artery. Rib may be included to bridge mandibular defects.
What does the pectoral 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….Thoracoacromial artery.
| Origin | Thoracoacromial artery |
|---|---|
| Branches | Pectoral, acromial, clavicular and deltoid branches |
What is a myofascial flap?
The myofascial flap variation carries no skin paddle and is utilized primarily to close small mucosal defects, to protect major vascular structures, and to support primary mucosal closure in a patient at increased risk of wound breakdown (prior radiation, diabetic, weight loss).
How does pectoralis major Extend arm?
The main function of this chest muscle as a whole is the adduction and internal rotation of the arm on the shoulder joint. Acting independently, the clavicular part helps to flex the extended arm up to 90°, while the sternocostal part facilitates the extension of the flexed arm by pulling it downwards.
What are the actions of pectoralis major?
The pectoralis major’s primary functions are flexion, adduction, and internal rotation of the humerus. The pectoral major may colloquially be referred to as “pecs”, “pectoral muscle” or “chest muscle” due to it being the largest and most superficial muscle in the chest area.
How long does a pectoral flap take to heal?
You will need to follow the following guidelines until your incisions completely heal. This is usually 6 weeks after your surgery. Your doctor will tell you how long to follow these guidelines for. Keep your surgical sites out of the sun.
What is pectoralis major muscle?
The pectoralis major is the most superficial muscle in the pectoral region. It is large and fan shaped, and is composed of a sternal head and a clavicular head: Attachments: The distal attachment of both heads is into the intertubercular sulcus of the humerus.
What is the origin of pectoralis major?
Pectoralis major muscle
| Origin | Clavicular part: anterior surface of medial half of clavicle Sternocostal part: anterior surface of sternum, Costal cartilages of ribs 1-6 Abdominal part: Anterior layer of rectus sheath |
|---|---|
| Innervation | Lateral and medial pectoral nerves (C5-T1) |
What is an alt flap?
The anterolateral thigh (ALT) flap (Fig. 22-4) is a very popular flap for lower limb reconstruction for several reasons. It is based on an area of skin and fascia on the anterolateral aspect of the thigh supplied by perforators of the descending branch of the lateral circumflex femoral artery.
Where is the blood supply from the pectoralis major flap?
Blood supply of pectoralis major flap (Figures 2, 3) The pectoralis major flap is an axial flap and is based primarily on the pectoral branch of the thoracoacromial artery and The thoracoacro- mial artery is a branch of the axillary arte- ry, itself a continuation of the subclavian artery.
Is there a flap for the pectoralis muscle?
A technique for developing a standard pectoralis major myocutaneous island flap is described. Our studies show that a hemichest flap incorporating all the skin of the chest over the muscle is feasible. Arteries / anatomy & histology
Is the pectoral major flap a thoracoacromial artery?
The pectoralis major flap is an axial flap and is based primarily on the pectoral branch of the thoracoacromial artery and The thoracoacro- mial artery is a branch of the axillary arte- ry, itself a continuation of the subclavian artery. The pectoral branch of the thoraco- Deltoid Pectoralis major: clavicular head
How is the vascular supply of the pectoralis major muscle?
The vascular supply of the pectoralis major muscle is in general very constant. It is covered by small amount of soft tissue and is situated clearly among definite tissue planes, making its isolation relatively easy. The pectoralis major muscle as a pedicled flap is well vascularized and has abundant perforators to supply its overlying skin.