please help!
2006-12-18 07:23:41 · 3 answers · asked by Jas 3 in Science & Mathematics ➔ Biology
Most major arteries lie deep and, in the extremities, next to the bone. This has zero to do with pressure, and everything to do with protection from injury. In the event of an injury, the cut/laceration/puncture will have to be deep and not superficial in order to injury the artery.
In the event of injury, pressure does become a factor because the venous system is lower pressure and less likely to hemorrhage severely than the arterial system.
2006-12-19 10:25:24 · answer #1 · answered by rnrayunretired 3 · 1⤊ 0⤋
Because they need to withstand the high pressure of blood flowing in them.
2006-12-18 11:56:13 · answer #2 · answered by moosa 5 · 0⤊ 0⤋
well, so that if you're cut outside, not too much blood will flow out
to withstand the blood pressure
to withstand the air pressure outside in the air.
2006-12-18 22:42:26 · answer #3 · answered by Mike 4 · 1⤊ 0⤋