Being in space significantly affects the human body. Research shows that microgravity reduces bone density, posing a serious ...

It is where the thigh bone meets the pelvis to form a ball-and-joint socket. The hip joint consists of two main parts — the femoral head and the acetabulum. The femoral head is a ball-shaped ...

Grade 2 heterotopic ossification happens when the bone fragments spread to other parts of your pelvis and femur (thigh bone). The bone growths will be at least 1 centimeter apart from each other.

Remarkable new fossils from Swartkrans Cave reveal that a prehistoric relative of humans was also extremely small and ...