The superior hypophyseal artery is an artery supplying the pars tuberalis, the infundibulum of the pituitary gland, and the median eminence. It is a branch of the cerebral part of the internal carotid artery.
What does the inferior hypophyseal artery supply?
The inferior hypophyseal arteries arise from the meningohypophyseal trunks of the cavernous carotid arteries. They primarily supply the posterior lobe of the pituitary gland. The meningohypophyseal trunk also sends off branches to the tentorial dura (via the arteries of Bernasconi and Casanari) and the clivus.
Where is the hypophyseal artery located?
The superior hypophyseal artery (or arteries) is a branch from the C6 segment of the internal carotid artery. It is usually a single trunk arising from the medial or posteromedial aspect of the internal carotid artery within 5 mm of the origin of the ophthalmic artery 2.
Where does the superior hypophyseal artery arise?
internal carotid artery
The superior hypophyseal artery (or arteries) is a branch from the C6 segment of the internal carotid artery. It is usually a single trunk arising from the medial or posteromedial aspect of the internal carotid artery within 5 mm of the origin of the ophthalmic artery 2.
What is the function of Hypothalamohypophysial portal system?
n. A system of veins that originate in the hypothalamus and pass through the pituitary gland and into its anterior lobe, where they branch into a capillary bed and convey releasing factors to the anterior lobe.
What is the function of the hypophyseal portal veins?
a system of blood vessels that connects the hypothalamus and the anterior pituitary gland. The hypophyseal portal system allows for communication between these two structures by means of hormonal signaling.
Is ophthalmic artery an end artery?
The central retinal artery is the most important branch of the ophthalmic artery because it is a so-called end artery, meaning that it is the only artery that supplies a given tissue, with no collateral circulation.
