What is the thoracoacromial artery?
The thoracoacromial artery is the first branch of the axillary artery. It arises from the axillary artery deep to the clavicle. The pectoral branch of the thoracoacromial artery is one of four main branches (the others include the deltoid, acromial, and clavicular branches) (Fig.
Where is the thoracoacromial artery?
axilla
The thoracoacromial artery arises near the axilla at the level of the suprascapular notch from the second part of the axillary artery. It courses downwards, deep to the medial border of the pectoralis minor muscle, after which it pierces the clavipectoral fascia.
What are the 4 branches of thoracoacromial artery?
Its origin being generally overlapped by the upper edge of the Pectoralis minor Projecting forward to the upper border of this muscle, it pierces the coracoclavicular fascia and divides into four branches—pectoral, acromial, clavicular, and deltoid.
What nerve travels with the pectoral branch of thoracoacromial artery?
the lateral pectoral nerve
Similarly, the lateral pectoral nerve runs along the upper border (medial aspect) of the pectoralis minor muscle (98%) and then runs under surface of the pectoralis major muscle along with the pectoral branch of thoracoacromial artery, supplying the upper portion or most of the proximal 2/3rd of the pectoralis major …
What does circumflex scapular artery supply?
This artery gives off several muscular, cutaneous and articular branches. They contribute to the blood supply of three muscles (deltoid, teres minor, triceps brachii), glenohumeral joint and two small cutaneous areas partially overlying the scapula. Key facts about the circumflex scapular artery.
What does the circumflex scapular artery supply?
This artery gives off several muscular, cutaneous and articular branches. They contribute to the blood supply of three muscles (deltoid, teres minor, triceps brachii), glenohumeral joint and two small cutaneous areas partially overlying the scapula.
Why is the axillary artery important?
The axillary artery is a large muscular vessel that travels through the axilla. It is responsible for carrying oxygen-rich blood to the upper limb, as well as to parts of the musculocutaneous system of the scapula and upper lateral thorax.
Is axillary artery palpable?
The axillary artery is most superficial within this depression and can be easily palpated.
What muscles are supplied by the thoracoacromial artery?
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 the clavipectoral fascia 2.
How many branches come off of the Thoracoacromial trunk?
four branches
Structure. Projecting forward to the upper border of the Pectoralis minor, it pierces the coracoclavicular fascia and divides into four branches—pectoral, acromial, clavicular, and deltoid.
What is the posterior circumflex humeral artery?
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.