Which muscle is the agonist when straightening your elbow?
crucial Two pairs Cynodonts therapsids therian mammary triceps keratin
A B C D E F G H
Which muscle is the agonist when straightening your elbow? (A) crucial (B) Two pairs (C) Cynodonts (D) therapsids (E) therian (F) mammary (G) triceps (H) keratin