The suprascapular artery is a branch of the thyrocervical trunk, which emerges from the first part of the subclavian artery. It runs across the front of your neck and behind the clavicle (collarbone) to supply blood to the muscles, skin, and bones in your chest and shoulder.
What does the Subscapular artery supply?
The main function of the subscapular artery is to provide blood supply for the muscles and skin of the shoulder, upper extremity and thoracic wall. The supplied muscles include the deltoid, latissimus dorsi, long head of triceps brachii, subscapularis, supraspinatus, infraspinatus and serratus anterior muscles.
What does the dorsal scapular artery supply?
The dorsal scapular artery (DSA) supplies the levator scapulae and rhomboid muscles, and contributes to the arterial anastomosis around the scapula.
Does Subscapular artery supply to breast?
The lateral thoracic, acromiothoracic, and subscapular arteries are all branches or sub-branches of the axillary artery and may all contribute to the arterial supply of the breast.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.
What does the circumflex artery supply?
The circumflex artery branches off the left coronary artery and encircles the heart muscle. This artery supplies blood to the outer side and back of the heart.
Where is the main artery in your heart?
Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet. These arteries and their branches supply all parts of the heart muscle with blood.
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.What is scapular anastomosis?
The scapular anastomosis is a system connecting certain subclavian artery and their corresponding axillary artery, forming a circulatory anastomosis around the scapula. It allows blood to flow past the joint in case of occlusion, damage, or pinching of the following scapular arteries: Transverse cervical artery.
What artery supplies deltoid?The posterior circumflex humeral artery was the most important artery. It supplied the posterior and middle parts of the deltoid muscle. The anterior circumflex humeral artery supplied the anterior part of the deltoid muscle in 63%.
Article first time published onWhat artery supplies trapezius?
It was found that there are two main patterns of vascular supply to the trapezius, and that the muscle is principally supplied by three vascular sources: the transverse cervical artery, the dorsal scapular artery, and the posterior intercostal arterial branches.
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 gives rise to the dorsal scapular artery?
The dorsal scapular artery (or descending scapular artery) is a blood vessel which supplies the levator scapulae, rhomboids, and trapezius. It most frequently arises from the subclavian artery (the second or third part), but a quarter of the time it arises from the transverse cervical artery.
What does the dorsal scapular nerve innervate?
The DSN is a motor nerve that innervates the levator scapulae, rhomboid major, and rhomboid minor muscles. These muscles work dynamically and collectively are considered periscapular stabilizing muscles. Individually they can retract and elevate the scapula.
What Innervates serratus anterior?
The serratus anterior muscle, known as the “boxer’s muscle,” receives its innervation solely from the long thoracic nerve, which when damaged results in paralysis of the muscle, a phenomenon known as a winged scapula.
Does infraspinatus adduct or abduct the arm?
Infraspinatus is the main external rotator of the shoulder joint. It assists in producing shoulder extension. With the arm fixed, it abducts the inferior angle of the scapula.
Does infraspinatus adduct the arm?
The infraspinatus is the main external rotator of the shoulder. When the arm is fixed, it adducts the inferior angle of the scapula. Its synergists are teres minor and the deltoid.
What artery supplies the teres minor?
The teres minor is supplied by the subscapular artery and one of its branches, the circumflex scapular artery, as well as the posterior circumflex humeral artery. The subscapular artery and the posterior circumflex humeral artery arise from the third, most distal portion of the axillary artery.
What are the 5 major arteries?
- The aorta.
- The arteries of the head and neck. The common carotid artery. The external carotid artery. …
- The arteries of the upper extremity. The subclavian artery. The axilla. …
- The arteries of the trunk. The descending aorta. …
- The arteries of the lower extremity. The femoral artery.
What are the 4 major arteries?
By definition, an artery is a vessel that conducts blood from the heart to the periphery. All arteries carry oxygenated blood–except for the pulmonary artery. The largest artery in the body is the aorta and it is divided into four parts: ascending aorta, aortic arch, thoracic aorta, and abdominal aorta.
What do arteries do?
Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
How important is the circumflex artery?
The circumflex artery branches off the left coronary artery and encircles the heart muscle. This artery supplies blood to the lateral side and back of the heart.
What artery is behind the heart?
Circumflex artery, which passes behind the heart between the left atrium and left ventricle and supplies blood to the side (lateral wall) of the left ventricle. In a small number of people, the circumflex artery supplies the lower and back portions of the left ventricle.
What does the right marginal artery supply?
The marginal branch of the right coronary artery provides blood supply to the lateral portion of the right ventricle. The posterior descending artery branch supplies blood to the inferior aspect of the heart. The LMCA supplies blood to the left side of the heart.
Which artery avoids anastomosis around the elbow joint?
The inferior ulnar collateral artery (anastomotica magna artery) is an artery in the arm. It arises about 5 cm. above the elbow from the brachial artery.
What is the Costocervical trunk?
The costocervical trunk is a branch of the subclavian artery which supplies the upper extremities and contributes partly to the blood supply of the head and neck. The subclavian artery has a different origin on each side.
Where is superior thoracic artery?
The superior thoracic artery (highest thoracic artery) is a small artery located near the armpit in humans. It normally arises from the first division of the axillary artery, but may arise from the thoracoacromial artery, itself a branch of the second division of the axillary artery.
What does superior thoracic artery supply?
The main function of this artery is to provide blood supply for the pectoralis major, pectoralis minor, subclavius and serratus anterior muscles. … Additionally, it supplies the muscles and adjacent skin of the first two intercostal spaces.
What does superior epigastric artery supply?
The superior epigastric artery is a terminal branch of the internal thoracic artery that contributes to the blood supply of the anterior abdominal wall. … Along its course, it gives several collateral branches that supply the muscles and the skin of the anterior abdominal wall.
What does the Thoracodorsal artery supply?
The thoracodorsal artery supplies predominantly the latissimus dorsi muscle but also gives branches to the serratus anterior muscle, the axillary skin, the subscapular and teres major muscles.
Do deltoids veins?
The vascular supply of the deltoid is largely derived from the posterior circumflex humeral artery, which travels with the axillary nerve through the quadrilateral space (Fig. 26.4). … The venous branches accompany the arterial branches, except the cephalic vein , which runs in the deltopectoral groove.
