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The circle of Willis (also called Willis' circle, loop of Willis, cerebral arterial circle, and Willis polygon) is a circulatory anastomosis that supplies blood to the brain and surrounding structures in reptiles, birds and mammals, including humans. [1] It is named after Thomas Willis (1621–1675), an English physician. [2]
Better draw (more realistic). Bigger font size. Labels in colors. Added labels: Recurrent artery of Heubner and posteromedial central arteries, Circle of Willis, A1, A2, P1, P2. Correct arising for labyrinthine arteries. Use of layers. 21:24, 17 March 2014: 471 × 750 (12 KB) Rehua: text fix: 22:25, 26 February 2012: 471 × 750 (15 KB) Rehua ...
This image is a derivative work of the following images: File:Circle_of_Willis_en.svg licensed with PD-self . 2007-01-24T20:31:48Z Rhcastilhos 471x750 (38685 Bytes) {{Information |Description= Schematic representation of the circle of Willis, arteries of the brain and brain stem. |Source=Gray519.png |Date=01/24/2007 |Author=Rhcastilhos |Permission= |other_versions= }}
Circle of Willis (in the brain) Coronary: anterior interventricular artery and posterior interventricular artery of the heart; Scapular anastomosis (for the subclavian vessels) Joint anastomoses: Almost all joints receive anastomotic blood supply from more than one source. Shoulder (and circumflex humeral) Elbow (see blood supply of elbow)
In human anatomy, the left and right posterior communicating arteries are small [1]: 471 arteries at the base of the brain that form part of the circle of Willis. Anteriorly, it unites with the internal carotid artery (ICA) (prior to the terminal bifurcation of the ICA into the anterior cerebral artery and middle cerebral artery ); posteriorly ...
Ree's mother-in-law made this every year for Christmas. And well, it's so good (and easy to make!) that Ree carried on the tradition. 'Tis the season for an extra slice with more of that run glaze ...
The basilar artery is the main blood supply to the brainstem and connects to the Circle of Willis to potentially supply the rest of the brain if there is compromise to one of the carotids. At each cervical level, the vertebral artery sends branches to the surrounding musculature via the anterior spinal arteries.
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