Blood Supply

Superficial Temporal Artery

Superficial Temporal Artery The structure indicated is the superficial temporal artery. The superficial temporal artery is a branch of the external carotid artery. The external carotid artery gives rise to 8 branches: Superior thyroid artery Ascending pharyngeal artery Lingual artery Facial artery Occipital artery Posterior auricular artery Maxillary artery Superficial temporal artery The maxillary artery and the superficial temporal artery are terminal branches of the external carotid artery, with the latter being the smaller of the two branches. The superficial temporal artery is often biopsied when giant-cell arteritis is suspected. The artery can be easily palpated just anterior to the …

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Superficial Temporal Artery

Great Saphenous Vein

Great Saphenous Vein The structure indicated is the great saphenous vein. The great saphenous vein is a large superficial vein (the longest vein in the human body), which begins from the medial aspect of the dorsal venous arch of the foot. It then passes anteriorly, in front of the medial malleolus and ascends medially up the lower limb to drain into the femoral vein in the femoral triangle. Learn about the femoral triangle in this anatomy tutorial. Learn about the veins of the body in this tutorial.
Great Saphenous Vein

Splenic Artery

Splenic Artery The structure indicated is the splenic artery. The splenic artery the largest of three arteries arising for the celiac trunk: Left gastric artery Common hepatic Splenic artery The celiac artery is responsible for supplying the foregut structures, arising from the abdominal aorta just below the point at which it emerges through the aortic hiatus, at the level of vertebra L1. The splenic artery takes a tortuous course along the superior aspect of the pancreas to enter the hilum of the spleen. Along its course, it gives off several branches supplying the neck, body and tail of the pancreas. …

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Splenic Artery

Posterior Communicating Artery

Posterior Communicating Artery The structure indicated is the posterior communicating artery of the circle of Willis. It is one of the blood vessels which contributes to the arterial Circle of Willis – an anastomosis of arterial vessels located on the base of the brain, consisting of the following arteries: Anterior cerebral artery Anterior communicating artery Internal carotid artery Posterior cerebral artery Posterior communicating artery The posterior communicating artery connects the three cerebral arteries on the same side. It connects to the terminal part of the internal carotid artery before it bifurcates into the anterior cerebral artery and the middle cerebral …

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Posterior Communicating Artery

Superior Sagittal Sinus

Superior Sagittal Sinus The structure indicated is the superior sagittal sinus. The brain is drained by a series of veins and venous channels which drain into large dural venous sinuses, which in turn ultimately drain to the internal jugular veins. The dural venous sinuses are lined by endothelium and located between the layers of the dura mater in the brain. The venous sinuses are different to other blood vessels as they do not have the same set of layers which form their walls, and do not contain valves, like veins. The venous sinuses receive blood from veins which drain the …

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Superior Sagittal Sinus

Right Subclavian Artery

Right Subclavian Artery The structure indicated is the right subclavian artery. The subclavian arteries are located under (“sub”) the clavicle (“clavian”) and receive blood from the aortic arch. The subclavian arteries supply the arms, with some branches that extend to supply the head. The branches of the aortic arch are: Brachiocephalic artery Left common carotid artery Left subclavian artery The left subclavian artery comes directly off the arch of the aorta, whereas on the right side of the body, the brachiocephalic artery splits, giving rise to the right subclavian artery, and the right common carotid artery. The subclavian artery becomes …

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Right Subclavian

Left Anterior Descending Artery

Left Anterior Descending Artery The structure indicated is the left anterior descending artery (also known as the anterior interventricular artery). The left anterior descending artery is one of the coronary arteries which supplies the anterior and lateral parts of the myocardium and the interventricular septum. It is responsible for approximately 45-55% of the left ventricles blood supply. The left coronary artery arises from the left aortic sinus of the ascending aorta. The left coronary artery has two terminal branches: Left anterior descending (LAD)/anterior interventricular Circumflex branch The left anterior descending artery itself has two different types of branches Septal branches …

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Left Anterior Descending Artery