Q:

What are human bones made of?

A:

Quick Answer

The main component of bone is bone matrix, which is a mixture of a fibrous protein called collagen and carbonated hydroxyapatite, an inorganic compound mostly made of calcium and phosphate. The combination of fibrous collagen and crystallized calcium makes bones hard and rigid and adds tensile strength.

Know More
What are human bones made of?
Credit: Dallas Krentzel CC-BY 2.0

Full Answer

In children, the ends and edges of bones are mostly flexible cartilage, which is replaced by hard bone matrix as the bones reach their full size. Inside most of the larger, longer bones in the body, there is a flexible core of tissue called marrow, which is responsible for the production of both red and white blood cells.

Learn more about Bones

Related Questions

  • Q:

    How many bones are in the human hand?

    A:

    The human hand consists of 27 bones. There are eight carpal bones, and 14 are bones of the fingers, which are called proximal, intermediate and distal bones. Five metacarpal bones connect the fingers to the wrist and make up the palm of the hand.

    Full Answer >
    Filed Under:
  • Q:

    How many bones are in the human arm?

    A:

    According to Healthline, the human arm is composed of three bones, divided amongst two anatomical sections. The upper arm or brachium, which is the region between the shoulder and elbow joint, contains the humerus. The forearm or antebrachium contains two parallel bones, the radius and ulna.

    Full Answer >
    Filed Under:
  • Q:

    How many bones are in the human foot?

    A:

    There are 26 small bones in the foot. There are seven tarsal bones and 14 phalanges. In the ankle area there is a cuboid bone, navicular bone, cuneiform bone, calcaneus, and a talus.

    Full Answer >
    Filed Under:
  • Q:

    What are the three smallest bones in the human body?

    A:

    According to Georgia State University, the three smallest bones in the human body are the ossicles found in the ear, also know as auditory ossicles. The term "ossicles" means "tiny bones" and can be used for other small bones in the body.

    Full Answer >
    Filed Under:

Explore