end artery

End arteries are also known as terminal arteries.

The lenticulostriate perforators are end arteries.

The lenticulostriate arteries are 'end arteries' meaning that the regions they supply do not have significant collateral blood supply.

Functional end arteries supply segments of the brain, liver, kidneys, spleen and intestines; they may also exist in the heart.

An end artery is an artery that is the only supply of oxygenated blood to a portion of tissue.

Functional End Artery: Ineffectual anastomoses.

Anatomic (True) End Artery: No anastomoses.

Examples of an end artery include the splenic artery that supplies the spleen and the renal artery that supplies the kidneys.

The PCAs arise directly from the OA and are end arteries which is to say no PCA or any of its branches anastomose with any other artery.

End arteries are of particular interest to medicine where they supply the heart or brain because if the arteries are occluded, the tissue is completely cut off, leading to a myocardial infarction or an ischaemic stroke.

However the coronary arteries are functionally end arteries and so these meetings are referred to as anatomical anastamoses, which lack function, as opposed to functional or physiological anastomoses like that in the palm of the hand.

End arteries can exist when no anastomosis exists or when an anastomosis exists but is incapable of providing a sufficient supply of blood, thus the two types of end arteries are: