They all have the same bones, albeit evolved to suit different needs.
There are no real similarities in bird and bat wings, but if there were, then this would be an example of convergent evolution.
Convergent evolution.
Homology.
Example sentence - She was a good candidate for a prosthesis after she lost her forearm in an accident.
The ulna is a bone in forearm
-The boy had cuts and bruises on his forearm. -The war veteran lost his forearm in Vietnam. -I hurt my forearm playing sports.
The forearm is called just that.
The wrist is distal to the forearm. The wrist is neither medical nor lateral to the forearm.
the monkey bars can break your forearm
brachioradialis
wider than normal forearm
Biceps Brachii flexes the forearm and the Triceps Brachii extends the forearm.
Compare the bones in your forearm with the bones in the front legs of your cat or dog and see the striking bone for bone similarity and know that you and your animal companions are closely related and spring from rather recent common ancestry.
Biceps Brachii is a powerful supinator of the forearm, the Supinator muscle also completes supination of the forearm particularly when the forearm is supinating in a slow and unopposed manor or if the forearm is extended.