Which muscle is NOT paired with an antagonist?
A)external intercostals and internal intercostals
B)semispinalis capitis and sternocleidomastoid
C)triceps brachii and biceps brachii
D)deltoid and brachioradialis

Question

Quizplus · Accepted Answer

The deltoid muscle is not paired with an antagonist muscle. While the brachioradialis can act as an agonist during elbow flexion, it is not a true antagonist to the deltoid. The other options all involve pairs of muscles that act in opposition to each other as agonist-antagonist pairs.

Which Muscle Is NOT Paired with an Antagonist