What is the clavipectoral fascia?
What is the clavipectoral fascia?
The clavipectoral fascia is a sheet of loose connective tissue which is the deep layer of fascia in the pectoral region. It acts to suspend the floor of the axilla.
Where is the clavipectoral fascia located?
The clavipectoral fascia lies below the clavicular head of the pectoralis major. It fills in the space between the clavicle and the pectoralis minor. Between the 1st rib and the coracoid process of the scapula, the fascia is thickened to form the costocoracoid ligament.
What is the pectoral fascia?
The pectoral fascia is attached to the clavicle and sternum and covers the pectoralis major muscle. It is continuous inferiorly with the fascia of the abdominal wall. Perforating branches of vessels and nerves emerging from the pectoral fascia are located mainly at the medial lateral and lower fascias.
What is the axillary fascia?
The axillary fascia is relatively dense, especially in the central third of the shoulder and below the deltoid muscle. It divides at the lateral margin of the latissimus dorsi muscle into two layers, which ensheaths the muscle and are attached posteriorly to the spinous processes of the thoracic vertebrae.
What passes through the Clavipectoral fascia?
The arterial pedicles used for rotation of the pectoralis major muscle are the pectoral branch of the thoracoacromial artery, the lateral thoracic artery, and the superior thoracic artery. These vessels pass through the clavipectoral fascia to enter the muscle on its deep surface.
What is in the Clavipectoral triangle?
It contains the cephalic vein, and deltopectoral fascia, which is a layer of deep fascia that invests the three structures that make up the border of the triangle. The subclavian vein and the subclavian artery may be accessed via this triangle, as they are deep to it.
Is the pectoral fascia a deep fascia?
At the lower part of the thoracic region the deep fascia is well-developed, and is continuous with the fibrous sheaths of the rectus abdominis….
| Pectoral fascia | |
|---|---|
| TA2 | 2317 |
| FMA | 37803 |
| Anatomical terminology |
Is pectoral fascia deep or superficial?
The fasciae occur in two layers: (1) a superficial layer investing the pectoralis major muscle, called the pectoral fascia, and (2) a deep layer that extends from the clavicle to the axillary fascia in the floor of the axilla, called the clavipectoral (or costocoracoid) fascia.
What is a deep fascia?
Deep fascia is a dense connective tissue that is commonly arranged in sheets that form a stocking around the muscles and tendons beneath the superficial fascia (1). The superficial fascia has two layers: the external fatty layer and the deep membranous layer (2,3).
Is axillary anterior or posterior?
The axillary apex is the interval between the superior border of the scapula, the posterior border of the clavicle, and the external border of the first rib. The pectoralis major and the latissimus dorsi form the major anterior and posterior folds, respectively, of the axilla.
What pierces the Costocoracoid membrane?
The upper portion of the clavipectoral fascia, the costocoracoid membrane, is pierced by the cephalic vein, the lateral pectoral nerve, and branches of the thoracoacromial artery.
What makes up the deltopectoral triangle?
The deltopectoral triangle is a triangular depression formed between the clavicle above, lateral border of the pectoralis major medially and the medial border of the deltoid laterally. This narrow triangular area contains investing layers of the clavipectoral fascia and the cephalic vein on its roof which it pierces.
What is the definition of the clavipectoral fascia?
cla·vi·pec·to·ral fas·ci·a. [TA] a fascia that extends between the coracoid process, the clavicle, and the thoracic wall. It includes the muscular fascia that envelops the subclavius and pectoralis minor muscles and the strong membrane (costocoracoid membrane) formed in the interval between them, and the suspensory ligament of the axilla.
Where is the fascia of the pectoralis minor located?
The clavipectoral fascia lies below the clavicular head of the pectoralis major. It fills in the space between the clavicle and the pectoralis minor . Between the 1st rib and the coracoid process of the scapula, the fascia is thickened to form the costocoracoid ligament.
Where are the fasciae located in the axilla?
The fasciae occur in two layers: (1) a superficial layer investing the pectoralis major muscle, called the pectoral fascia, and (2) a deep layer that extends from the clavicle to the axillary fascia in the floor of the axilla, called the clavipectoral (or costocoracoid) fascia.
Where is the axillary nerve located in the clavipectoral fascia?
The clavipectoral fascia is incised lateral to the conjoined tendon. The axillary nerve is identified and potential high penetration of the musculocutaneous nerve through the conjoined tendon is determined.
