What are the names of the 4 "extensor" muscles of the lower forelimb?

Muscle extensors are muscles that usually increase the angle between members of a limb. Also, it is joint movement that increases the angle between two bones. 

The four extensor muscles of the lower forelimb were:

Extensor carpi radialis

Extensor digitorum communis

Extensor digitorum lateralis

Extensor carpi ulnaris.

However, these muscle assist in the flexing of the elbow.

just here for the other one bc they put up with u

idk what the options are but

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