For years, physiologists looking closely at bones noticed something puzzling. It was a microscopic prison break, blood cells slipping unseen from the enclosed depths of the bone marrow into the ...

The humerus bone is located in the upper arm between the elbow and shoulder. It’s the longest bone in the arm, and supports movement in the arm and shoulder. Keep reading to learn more about your ...

Hidden inside every organ, microscopic fibers form a scaffolding that quietly shapes how we move, think, and heal. For the ...

Medically reviewed by Gagandeep Brar, MD Key Takeaways Bone marrow fills the cavities in your bones and produces blood ...

Your hand consists of your wrist, palm, and fingers. The wrist has many smaller bones and joints, allowing the hand to move in different directions. It also includes the distal ends of the forearm ...