来自MSN5 个月
Humans Keep Growing an Extra Artery in Their Arms, And Here's Why
Three major arteries in the forearm – median in the center. (ilbusca/Digital Vision Vectors/Getty Images) At around eight weeks, it usually regresses, leaving the task to two other vessels ...
来自MSN2 个月
Human Arms Keep Growing an Extra Artery, And Here's Why
Three major arteries in the forearm – median in the center. (ilbusca/Digital Vision Vectors/Getty Images) At around eight weeks, it usually regresses, leaving the task to two other vessels ...