muscles bend limbs by pulling, they can not push. the answer is; a muscle is a muscle.
flexors
Muscles that bend a joint are flexors; musces that straighten a joint are extensors.
Yes, that's true.False.
Muscles move body parts by contracting and then relaxing. Your muscles can pull bones, but they can't push them back to their original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint.
Two joint muscles in the upper limb is the wrist and the elbow. Two joint muscles in the lower limb is the ankle and the knee.
adductor muscles
A muscle that straightens a joint is called an extensor.Extensors are the muscles whose contraction extends or straightens a limb or other part of the body.Extensor muscle
All muscles technically "pull", given that the only way a muscle can exert force is by contracting, but, depending on where they are in the body, and which side of a limb or area they pull on, they might work primarily to make that limb or body part do what we'd consider pulling or pushing.Those muscles that make a limb fold in on itself, like closing your fingers into a fist, or bending your arm or leg, are called "flexors" while those that pull on the opposite side to make the fingers or arm straighten back out are called "extensors".The gluteal muscles - the variousmusclesthat make up the buttocks - are extensors, as they help un-bend the joint where your legs meet your hips, allowing you to stand upright.
This type of muscle contracts to bend a limb at a joint
All the muscles of the upper limb
Muscles are in pairs as when one muscle contracts, its pair will relax, and the limb is moved. The reverse happens when the limb is returned to its starting position. Muscles can pull, but they can't push.
When you Bend your Leg your hamstring contracts and your quadriceps relax