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Blood Supply to the Brain
...  reach the brain? There are four vessels through which the arterial blood passes going to the brain. Each of these four vessels is actually in sets of paired arteries – one set of internal carotid arteries and a pair of vertebral arteries. These eventually converge into one unified vessel found near the pituitary gland, which is located in the interior surface of the brain. The  ...

External Carotid Arteries
...  head and neck houses the common carotid artery. There are two common carotid arteries, and these arteries supply oxygenated blood to the head and neck. The common carotid artery bifurcates into the external carotid artery and the internal carotid artery. The external carotid artery supplies blood to the exterior of the head, the face and the greater part of the neck. On the other hand, the  ...

Thyroid Gland
...  The thyroid is the biggest of all the endocrine glands, specifically found beneath the larynx. This organ’s high denmand for vascular support is satisfied by the two branches of the external carotid arteries, and the inferior thyroid branches of the subclavian arteries. Superior and middle thyroid veins provide venous drainage to the thyroid. The veins travel from the internal jugular  ...


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