artery

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Related to middle meningeal artery: Accessory meningeal artery, Middle meningeal nerve

artery,

blood vessel that conveys blood away from the heartheart,
muscular organ that pumps blood to all parts of the body. The rhythmic beating of the heart is a ceaseless activity, lasting from before birth to the end of life. Anatomy and Function

The human heart is a pear-shaped structure about the size of a fist.
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. Except for the pulmonary artery, which carries deoxygenated blood from the heart to the lungs, arteries carry oxygenated blood from the heart to the tissues. The largest arterial trunk is the aortaaorta
, primary artery of the circulatory system in mammals, delivering oxygenated blood to all other arteries except those of the lungs. The human aorta, c.1 in. (2.54 cm) in diameter, originates at the left ventricle of the heart.
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, branches of which divide and subdivide into ever-smaller tubes, or arterioles, until they terminate as minute capillariescapillary
, microscopic blood vessel, smallest unit of the circulatory system. Capillaries form a network of tiny tubes throughout the body, connecting arterioles (smallest arteries) and venules (smallest veins).
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, the latter connecting with the veinsvein,
blood vessel that returns blood to the heart. Except for the pulmonary vein, which carries oxygenated blood from the lungs to the heart, veins carry deoxygenated blood. The oxygen-depleted blood passes from the capillaries to the venules (small veins).
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 (see circulatory systemcirculatory system,
group of organs that transport blood and the substances it carries to and from all parts of the body. The circulatory system can be considered as composed of two parts: the systemic circulation, which serves the body as a whole except for the lungs, and the
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). Other important arteries are the subclavian and brachial arteries of the shoulder and arm, the carotid arteries that lead to the head, the coronary arteries that nourish the heart itself, and the iliac and femoral arteries of the abdomen and lower extremities. The walls of the large arteries have three layers: a tough elastic outer coat, a layer of muscular tissue, and a smooth, thin inner coat. Arterial walls expand and contract with each heartbeat, pumping blood throughout the body. The pulsating movement of blood, or pulsepulse,
alternate expansion and contraction of artery walls as heart action varies blood volume within the arteries. Artery walls are elastic. Hence they become distended by increased blood volume during systole, or contraction of the heart.
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, may be felt where the large arteries lie near the body surface.

artery

[′ärd·ə·rē]
(anatomy)
A vascular tube that carries blood away from the heart.

artery

any of the tubular thick-walled muscular vessels that convey oxygenated blood from the heart to various parts of the body
References in periodicals archive ?
By investigating the effects of compound 48/80 induced dural mast cell degranulation on the meningeal vasodilation and mast cell numbers in the ex vivo rat meningeal preparations, we showed that compound 48/80 induced massive degranulation of mast cells in the dura mater and dural mast cell degranulation caused vasodilation of middle meningeal artery and its anterior and posterior branches by increasing the diameters of them, respectively.
In the present study, middle meningeal artery and its branches were chosen due to the relevance for the generation of headaches (1,6), therefore the change in diameter of middle meningeal artery and its branches in response to mast cell degranulation in the dura mater has demonstrated that mast cells in the dura mater play a key role in the pathophysiology of migraine.
In the present study, this vasodilation of middle meningeal artery and its anterior and posterior branches may be caused by vasodilator molecules released from mast cells such as histamine, NO, VIP, CGRP, and vascular endothelial growth factor.
The supraorbital part of the stapedial artery forms in addition extraocular intraorbital arteries, the intracranial part of the middle meningeal artery. After the intraorbital branches of the stapedial artery are assimilated by the ophthalmic artery its proximal intra and retro orbital branches involute and become reabsorbed by the intracranial segment of the middle meningeal artery.
The middle meningeal artery may partially (only the anterior division) or completely arise from ophthalmic artery.
During the 11th week (80 mm), the external petrosal nerve arises from the facial nerve distal to the geniculate ganglion and courses with a branch of the middle meningeal artery. Branches also arise from the facial nerve between the stapedius and the chorda tympani nerves.