A molecular cascade including WNT–β-catenin signalling induces nephron formation in the metanephric mesenchyme surrounding the ureter. Patterning of the nephron along the proximal–distal axis ...

Bone marrow is the soft, fatty tissue inside large bones like the hip and thigh bones. It develops the body's red blood cells that carry oxygen, white blood cells that fight infections, and platelets ...

Ears can vary, so what's considered normal anatomy of the inner or outer ear in one person may be different for another. For example, 19% to 54% of people have an attached earlobe, which is a genetic ...