What are the branches of subclavian artery?

Branches. The subclavian arteries give off five major arteries each: the vertebral artery, the internal thoracic artery, the thyrocervical trunk, the costocervical trunk, and the dorsal scapular artery.

Where is the Thyrocervical artery?

The thyrocervical trunk is a branch of the subclavian artery arising from the first portion of this vessel, i.e. between the origin of the subclavian artery and the inner border of the scalenus anterior muscle. It is located distally to the vertebral artery and proximally to the costocervical trunk.

What is internal thoracic artery?

The internal thoracic artery, aka the internal mammary artery, supplies the breast and the anterior chest wall. The internal thoracic artery travels along the inner surface of the anterior chest wall on both sides. The internal thoracic artery runs under the fascia and deep to the intercostal muscles.

What are intercostal arteries?

Intercostal arteries are posterior branches along the length of the descending thoracic aorta and provide segmental arterial blood supply to the spinal cord.

What are the 3 parts of subclavian artery?

Relations

first part. anterior. common carotid artery. internal jugular and vertebral vein.
second part. anterior: scalenus anterior. phrenic nerve (right side only)
third part. anterior: suprascapular and transverse cervical vessels. subclavian and anterior jugular vein.

What is the brachiocephalic trunk?

The brachiocephalic artery, brachiocephalic trunk, or more commonly referred to clinically as the innominate artery, is one of the three great vessels of the aortic arch that supplies blood to the head, neck and upper extremities.

What is the thyrocervical trunk?

The thyrocervical trunk is one of the 3 branches of the first part of the subclavian artery and gives off numerous branches to supply viscera of the neck, the brachial plexus, neck muscles and the scapular anastomosis.

Is costocervical trunk the same as thyrocervical trunk?

The costocervical trunk is a short artery that usually stems from the upper portion of the distal segment of the subclavian artery, distal to the thyrocervical trunk. It courses posteriorly, over the apex of the lung, where it divides into two terminal branches; supreme intercostal and deep cervical arteries.

What does the thyrocervical trunk supply?

What is a thoracic artery?

In human anatomy, the internal thoracic artery (ITA), previously commonly known as the internal mammary artery (a name still common among surgeons), is an artery that supplies the anterior chest wall and the breasts.

What is the origin of posterior intercostal arteries?

The 1st and 2nd posterior intercostal arteries arise from the supreme intercostal artery, a branch of the costocervical trunk of the subclavian artery. The lower nine arteries are the aortic intercostals, so called because they arise from the back of the thoracic aorta.

How many intercostal arteries are there?

There are 11 paired arteries that constitute the posterior intercostal arteries. The first two intercostal spaces are supplied by the superior intercostal artery, and the remaining nine are supplied by separate branches from the descending thoracic aorta 1.

What are the branches of subclavian artery?