The muscle that causes a joint to straighten when it contracts are the extensor muscles. These include the triceps that work with the biceps to extend the arm.
tough tissue connecting body parts: a sheet or band of tough fibrous tissue that connects bones or cartilage at a joint or supports an organ, muscle, or other body part
saddle joint
The hip joint is a weight bearing structure and is therefore designed differently to allow controlled movement and yet retain strength and stability. The Shoulder in contrast is designed mainly for a range of movement far beyond the hip still controlled but not as stable and as strengthened as the hip
a shalingwe and Johnson joint. AFRICANS
it is similar to a saddle joint
strain
strain
This type of muscle contracts to bend a limb at a joint
Tricep.
strain
your triceps
When you bend your elbow, the biceps muscle contracts. At the same time the antagonist muscle, that is the triceps muscle relaxes in synchronized manner. Vise verse action take place, when you straighten the arm at the elbow. Triceps contracts and biceps relaxes.
Skeletal muscles only pull in one direction. For this reason they always come in pairs. When one muscle in a pair contracts, to bend a joint for example, its counterpart then contracts and pulls in the opposite direction to straighten the joint out again.
The right answer is StrainThat would depend on the joint. The knee joint is straightened with the quadricep muscle (thigh). And the elbow joint is straightened with the tricep muscle (back of the arm)LigamentsPerhaps extensor muscles. (ligaments function to hold joints together, they are not muscles.)
Joints don't have the ability to move. Joints are where two or more bones meet. One end of muscle attaches to the bone and the other end of the muscle stretches cross the joint and attaches to the bone on the other side of the joint. Muscles work in pairs, so that when one muscle contracts (the only movement that muscle can make), the other of the pair relaxes which causes movement at the joint when the bone is pulled by the muscle.
ligament
A flexor is a muscle that causes a joint to bend. In contrast, an extension is a muscle that straightens a joint.