anatomy_kinesiology

In anatomy, extension describes a movement that increases the angle between two body segments around a joint. When you extend a joint, you typically move the distal segment post...

The muscle that extends the knee and flexes the thigh is the rectus femoris, one of the four quadriceps muscles. It crosses both the hip and knee joints, allowing it to perform...

When describing how skeletal muscles produce movement, anatomy distinguishes between the origin and the insertion . The origin is typically the more stable attachment of a muscl...