# Circle of Willis: ACA, MCA, and PCA Stroke Symptoms

- Original post: https://www.twitter.com/i/status/2119006286121673215
- Source account: [@Madicalvid](https://x.com/Madicalvid)
- Source language: English
- Duration: 1:05
- Published: 2026-11-14
- Canonical URL: https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms

## Transcript

[0:00](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms) One circle feeds the whole brain, and a stroke anywhere in it writes a different deficit.

[0:06](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=6) The Circle of Willis: two carotids in front, two vertebrals behind, joined by communicating arteries.

[0:14](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=14) One ring, so one blockage can still find another way in.

[0:19](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=19) Front: anterior cerebral. It feeds the inner leg.

[0:23](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=23) Block it, and the leg goes weak, sometimes with a personality change.

[0:28](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=28) Side: middle cerebral, the most common stroke.

[0:32](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=32) Face and arm go weak, and if it is the dominant side, speech goes too.

[0:38](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=38) Back: posterior cerebral. It feeds vision.

[0:42](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=42) Block it, and half the visual world disappears on the opposite side.

[0:47](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=47) So, sudden right face and arm weakness, and he cannot speak.

[0:52](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=52) Which artery and which side? Drop it below.

[0:56](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=56) Save the circle. ACA: leg. MCA: face, arm, and speech.

[1:03](https://www.translate.mom/transcript/Cv0Gj81hcSUm/en/circle-of-willis-aca-mca-and-pca-stroke-symptoms?t=63) PCA: vision.