Where does the thyroid receive blood flow from?
Where does the thyroid receive blood flow from?
The thyroid gland receives its blood supply through the inferior and superior thyroid arteries, which arise from the external carotid and subclavian arteries.
Does the thyroid gland have a rich blood supply?
Arterial supply The superior thyroid artery (arising from the external carotid artery) and the inferior thyroid artery (originating from the thyrocervical branch of the subclavian artery) bring oxygenated, nutrient rich blood to the thyroid gland.
What is the nerve supply of thyroid gland?
The two nerves of importance that pass through the thyroid are the left and right recurrent laryngeal nerves [RLN]. They are often located on the lateral aspect of the thyroid gland near the vicinity of the inferior thyroid artery.
How many arteries feed the thyroid?
You have two superior thyroid arteries—one on either side with generally symmetrical courses. Unless one side needs to be distinguished from the other, the pair of arteries is usually referred to in the singular. The superior thyroid artery is a branch of the external carotid artery.
What does the superior thyroid artery supply?
The superior thyroid artery is the first branch of the external carotid artery that supplies the thyroid gland, cricothyroid and infrahyoid muscles, a part of the sternocleidomastoid muscle and the upper larynx. It is located in the anterior neck, deep to the infrahyoid muscles.
What veins drain the thyroid gland?
The left inferior thyroid vein drains into the left brachiocephalic vein, while the right inferior thyroid vein empties into the right brachiocephalic vein. At times, the inferior thyroid veins may join and drain directly into the superior vena cava or into the right brachiocephalic vein via a common trunk.
What is thyroid ima artery?
Thyroidea ima is a rare anomalous artery supplying the thyroid gland apart from the superior and inferior thyroid arteries. They most commonly arise from the innominate, aortic arch, right common carotid or subclavian artery.
How many thyroid veins are there?
The inferior thyroid veins appear two, frequently three or four, in number, and arise in the venous plexus on the thyroid gland, communicating with the middle and superior thyroid veins….
| Inferior thyroid veins | |
|---|---|
| Drains from | Thyroid gland |
| Drains to | Brachiocephalic vein |
| Artery | Inferior thyroid artery |
| Identifiers |
Is there a middle thyroid artery?
The middle thyroid artery arose from the anterior surface of the left common carotid artery. This artery ran anteroinferiorly and then bifurcated as it entered the lower lateral part of the left thyroid lobe.
What artery supplies cricothyroid?
superior thyroid artery
The superior thyroid artery is the first branch of the external carotid artery that supplies the thyroid gland, cricothyroid and infrahyoid muscles, a part of the sternocleidomastoid muscle and the upper larynx. It is located in the anterior neck, deep to the infrahyoid muscles.
Where is the thyroid vein?
neck
The superior thyroid vein is a vein located in the neck. It originates within the thyroid gland, which lies near the center of the neck, just above the collarbone. It helps return blood to the heart that was supplied by the superior thyroid artery.