Does anyone know the function of the ulna and tibia? I know that they are used in the movement and the arms and legs, but why are there 2 bones in the lower arms/legs?
2006-10-19 08:57:52 · 3 answers · asked by darcy_t2e 3 in Science & Mathematics ➔ Biology
Well the radius and ulna in the arm twist, but the tibia and fibula in the lowe leg don't. The tibia is the main weight-bearing bone of the lower extremity. The fibula helps to prevent excessive eversion, and no one is 100% sure why else it is there.
2006-10-19 11:46:41 · answer #1 · answered by Amanda 6 · 0⤊ 0⤋
I don't think so. It is not like I would get any use from it being a different color. Other than maybe it would be cool to say that I have purple bones. The 4th-Not necessarily, if they were black don't you think you could pick the them out. Although then it maybe be harder for paleontologists to look for dino bones or any other bones for that matter. At first I was like what the f*ck to your question but that is pretty interesting to think about. Something different. Props.
2016-05-22 02:54:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
So it has the ability to twist. Your hand and foot can move in a lot of different ways that other parts of your body can't. Those two bones in the lower arm and leg rotate around each other and allow for greater movement.
Take one hand and grab your other arm and move your hand so that your palm is up and then down a few times...you should feel your bones twisting around.
2006-10-19 09:01:13 · answer #3 · answered by Shaun 4 · 1⤊ 0⤋