What is the function of thyrocervical trunk?

Primarily, the thyrocervical trunk is tasked with supplying oxygenated blood to the viscera of the neck, which includes the thyroid and parathyroid glands, the trachea and larynx, as well as the pharynx and esophagus in the throat.

What do the Thyrocervical arteries supply?

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. …

What is scapular anastomosis?

The pectoral girdle has a rich plexus of arterial vessels that anastomose around the scapula and its muscles known as the scapular anastomosis. It functions to allow blood to flow around the scapula and shoulder joint if there is injury or occlusion.

Which branches of ECA provides collateral pathway to the ICA stenosis?

Our study discovered four collateral circulation pathways of “ICA steal” by DSA and CTA: 1) ipsilateral vertebral artery – occipital artery – ECA – ICA, 2) ipsilateral thyrocervical trunk or costocervical trunk – ascending cervical artery or deep cervical artery – occipital artery – ECA – ICA, 3) contralateral ECA – …

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.

Are there two Thyrocervical trunks?

In the most anatomical textbooks, the thyrocervical trunk is described as the artery that gives rise to three branches (inferior thyroid, suprascapular and transverse cervical). Equally common is a two-branch trunk, consisting of only the inferior thyroid and suprascapular branches.

Which artery is branch of thyrocervical trunk?

subclavian artery
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.

What nerve causes winged scapula?

The most common cause of scapular winging is paralysis of the serratus anterior muscle due to the injury of the long thoracic nerve. Dorsal scapular neuropathy may result in abnormal motion of the shoulder joint with scapular winging.

What is collateral circulation in the brain?

The cerebral collateral circulation refers to the subsidiary network of vascular channels that stabilize cerebral blood flow when principal conduits fail. Arterial insufficiency due to thromboembolism, hemodynamic compromise, or a combination of these factors may lead to the recruitment of collaterals.

How can you tell if you have internal and external carotid arteries?

There are several observations that will help you identify the arteries. The position, size and shape are suggestive of either the internal or external carotid artery. In contrast the presence of side branches clearly denotes that the vessel is the external carotid artery.

How many branches does the thyrocervical trunk have?

The thyrocervical trunk can have up to five branches, but in most cases, it has two to four. These branches usually include: inferior thyroid artery, suprascapular artery, ascending cervical artery and the transverse cervical artery. Learn more about the ventral neck vessels and nerves with our articles, videos, labeled diagrams and quizzes.

Is the left vertebral artery from the thyrocervical trunk?

This report describes a case of anomalous origin of the left vertebral artery from the thyrocervical trunk discovered on CT angiography in a patient with a family member with known aberrant vertebral artery origins. To the best of our knowledge, this vascular variant has not been previously described in the English-language literature.

Where does the transverse cervical artery come from?

The transverse cervical artery arises directly from the subclavian artery in 30-40% of cases, and from the thyrocervical trunk in about 60-70%. It can branch as a single vessel or it can arise together with other branches of the subclavian artery. It is absent in about 6% of cases.

What are the four pathways of collateral circulation?

The collateral circulation pathway was: ascending cervical artery from left thyrocervical trunk (arrow ①) and deep cervical artery from left costocervical trunk (arrow ②) – occipital artery (retrograde, arrow ③) – ECA (retrograde, arrow ④) – carotid bifurcation – ICA (arrow ⑤)