What is the part marked X in the figure above called?

BlackIce

1 year ago

My school, your diagrams are not clear please make it more visible or better still make it clickable

Fex23

3 years ago

Diagram not clear

gng_ramy

3 years ago

there is no diagram

Chidera2107

1 year ago

that artery appeared out of nowhere

Medbrain

4 months ago

The correct answer is D my school.

please correct it