Proko - owlsolar

Hi, I have a few questions about specific joints. First, I'm not really sure what type of joint connects the ulna and the hand. I think the connection between the radius and the hand is an ellipsoid, but I'm not sure about the ulna. Maybe it's a ball and socket joint? I have the same question about the connection between the talus (ankle) and the calcaneus (heel). I've looked at a few diagrams and there does seem to be a joint there, but I'm not sure what type it is. I think it might be a hinge or ellipsoid.

Matthew Kleynhans

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3yr

Hi there, the forearm is so confusing, I almost gave you the wrong answer until I basically wrote Ulna and Radius on my arm. So at the elbow - Humerus to Ulna is a hinge joint, the Humerus to Radius is a Pivot joint. A non exact inverse is true at the wrist - Ulna to carpel (main hand part) Pivot, Radius to capel is an ellipsoid joint. The vid made mention that the radial carpel joint of the hand is an example of an ellipsoid joint. Hope this helps, really confusing stuff. ( I hope I got this correct smh)

Lana Bijuk

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3yr

He mentions in the video that carpals of the hand and tarsals of the foot are "the plane" joints (the last type he showed that looks like two discs on top of each other), they can glide and rotate. I am not sure if those are the same joints you are talking about though.