Human embryos are more muscle-bound than adult humans, new microscope images cataloging early development show. For instance, at seven weeks of gestation, embryonic hands have about 30 muscles. Adults ...

The deep muscles of the hand have very particular functions, such as flexing or pulling the hand away from the body. Together with the hand’s other muscles, tendons, ligaments, vessels, and bones, ...

The dorsal interossei of the hand are four muscles which are located between each of the metacarpals. Each muscle is attached at two points to the metacarpals, giving them added strength. They are ...

Seeing the inner workings of a hand, or the nervous system surrounding the spleen, doesn’t seem appealing to most people. However, “Gray’s Anatomy,” the corpus of medical students and artists for over ...