1st class lever, with the axis of the elbow in the center of the force generated by the triceps proximally and the resistance of the hand and forearm distally
a human has 3 tricep brachii
The antagonist to the Triceps are the biceps-brachii
There are two major ones. The bicep brachii (more commonly know as just the bicep, or slang is guns (In the UK any way)) is on the front and the Tricep brachii (usally just called the tricep) is on the back.
to flex the forearm at the elbow, you use the biceps brachii, brachialis, and brachioradial (to a lesser extent).to supinate the forearm, you use the biceps brachii and the supinator muscles.the biceps brachii does both motions.
Tricep brachii is responsible for extension (straightening) of the arm at the elbow. There are 3 heads of the Tricep; the long, lateral and medial heads. The Tricep is an antagonist of the bicep and brachialis muscles of the upper arm, which both assist in flexion at the elbow joint.
A lying tricep extension is a type of third-class lever exercise. The resistance (weight) is on one end (hand holding the weight), the force is in the middle (elbow joint), and the effort is on the opposite end (tricep muscle).
Second class
the antagonsit is the tricep but im not sure what the synergist is sorry : revised : the synergist in a biceps curl would be the posterior deltoid as it flexes to stabilize the shoulder, as the secondary role of the biceps brachii in a biceps curl is to pull the elbow forward and upward in an arc towards the shoulder. if you were looking at the synergists to the biceps brachii as an agonist in its usual role, then the brachioradialis would be the synergist.
Prime movers are:biceps brachiibrachialisbrachioradialisSynergists are:pronator teresflexor carpi radialisflexor carpi ulnarisflexor digitorum superficialispalmaris longus
bicep- it bends the arm while the triceps straighten the arm.
The main extensor of the arm is the triceps brachii muscle. It is located on the back of the upper arm and is responsible for extending the elbow joint, which straightens the arm.
triceps brachii, biceps brachii, pectoralis major, deltoid, there are many more but i feel these are the common ones known. ---------------------------------------------------------Recommend me if u like this.....