Top 10 Longest Bones in the Human Body

There are 206 bones in the human body. At the time of birth, there are nearly 270 bones. Gradually, the number decreases. This arises the question how the count decreases? This is because some of the bones fuse as the baby grows.

This article will enhance the knowledge regarding the 10 longest bones in the human body. The list of the longest bones is discussed below.

1. Femur Bone

The femur is the longest bone in the human body. It is the bone of the upper leg, also known as thigh bone. The bone has an average length of 50.50 CM or 19.88 IN.

The femur is also the heaviest bone of the human body.

2. Tibia

The tibia is the second longest bone of the human body. It is also known as shinbone. This is the bone of the inner lower leg. The bone has an average length of 43.03 CM or 16.94 IN.

The main function of Tibia is to bear weight.

3. Fibula Bone

Fibula, the third longest bones of the human body. It is the outer lower leg bone. The bone has an average length of 40.50 CM or 15.94 IN.

Fibula provides stability to the ankle joint.

4. Humerus Bone

The humerus is the fourth largest bone in the human body. It is the bone of the upper arm. The bone has the dimension of 36.46 CM or 14.35 IN.

Humerus provides flexibility to the arm helping it move and rotate.

5. Ulna

The ulna is the bone of the inner lower arm. It is the fifth largest bone in the human body. The bone has an average length of 28.20 CM or 11.10 IN.
This bone helps in the movement of the arm and wrist.

6. Radius

The radius is the bone of the outer lower arm. It is the sixth largest bone of the human body. The bone has the dimension of 26.42 CM or 10.40 IN.

7. 7th Rib

There are 12 pairs of ribs in the human chest. Typically there are 24 ribs it means 24 bones or 12 pairs of bones. The 7th rib has a dimension of 24.00 CM or 9.45 IN.

8. 8th Rib

The 8th rib has an average length of 23.00 CM or 9.06 IN. It is the 8th largest bone of the human body.

9. Innominate bone

Innominate bone is the 9th largest bone of the human body. It is also known as hipbone-half pelvis. It has the dimensions of 18.50 CM or 7.28 IN.
This bone provides mobility and stability to the body.

10. Sternum

Sternum, also known as the breastbone. It has an average length of 17.00 CM or 6.69 IN.
Sternum protects the organs of the torso like heart and lungs.

All the above dimensions of the bones are average dimensions of the bones of an adult male measured from their extremities (ribs are curved, and the pelvis measurement is taken diagonally). The same bones in the female skeleton are usually 6 to 13 per cent smaller, with the exception of sternum which is virtually identical.