It's believed over time, and in response to selective pressures, the mammal spine evolved from that lizard like side-to-side bending to the mammal-like up-and-down bending seen today. The transition ...

Flexion is the movement of a joint that increases the angle between the joint and the body part. Movement of a body part to the side is called lateral flexion. This type of movement is commonly ...

The lateral femoral cutaneous nerve is a branch of the lumbar plexus, exiting the spinal cord between the L2 and L3 vertebrae. It emerges at the lateral edge of the psoas muscle group, below the ...

The spine, or backbone, is a long column of bones that runs down the center of a person’s back. It is essential for many functions, such as movement, support, and protecting the spinal cord. A ...