Question

which term describes the opposing actions of the triceps brachii and the biceps brachii?
answers: a - e
a fixators
b synergists
c agonists
d prime movers
e antagonists

Explanation:

Antagonists are muscles that oppose the action of another muscle. The biceps brachii flexes the elbow joint, while the triceps brachii extends it, making them antagonists. Fixators stabilize joints. Synergists assist agonists. Agonists (prime movers) are the main muscles causing a movement. So, the term for their opposing actions is antagonists.

Answer:

E. Antagonists