A skeletal muscle.
The tricep is the muscle on the underside of the upper arm. The muscle on the upper side is the bicep.
The tricep muscle is mainly responsible for the straightening of the arm. This means that the tricep muscles are voluntary, and will only move if we wish to move our arms.
To strengthen the back of your arm muscle, you can do exercises like tricep dips, tricep extensions, and tricep kickbacks. These exercises target the tricep muscles located at the back of your arms.
tricep
A muscle that has three origins is called a "tricep." This type of muscle has three separate points of attachment where its fibers originate from, giving it its name "tri-" meaning three. The tricep muscle is typically found in the upper arm and is responsible for extending the elbow joint.
The tricep pushdown exercise primarily targets the triceps muscle group.
I think what your after is called an antagonistic pair of muscles, for example the bicep and the tricep. When the bicep is contracting the tricep relaxes and when the tricep is contracting the bicep relaxes.
Tricep.
your tricep
There are two main ones, the tricep and the biscep. The tricep bicep is on the inside angle as defined by your elbow, the tricep is on the outside.
Tricep.
tricep and bicep