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Leg Bones | Bones of the Leg

The Leg Bones

  • The human leg consists of 8 bones, 4 per leg.
  • The leg’s main function in the human is for locomotion and support of the rest of the body.
  • The leg extends from just below the pelvic girdle to the ankle. The entire region below the pelvic girdle, including the feet, is known as the lower extremity.

Below are detailed descriptions and diagrams of the leg bones. Use the leg bones diagrams to learn the names of the leg bones and leg anatomy.

Leg and Thigh Bones

List of all Leg and Thigh Bones


  • femur (2)
  • patella (2)
  • tibia (2)
  • fibula (2)


Femur bone

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  • The femur, also known as the thigh bone, is the longest bone of the human skeleton located in between the hip bone and the knee.
  • This bone is one of the strongest bones in the human skeleton and functions in supporting the weight of the body and allowing motion of the lower extremity.
  • A femur bone is found in each leg.
  • The femur makes up part of the hip joint and knee joint.

Additionally, the femur consists of four parts:  the head, greater trochanter, lesser trochanter, and the lower extremity.

It is clear that the femur plays a vital role in walking/running and the femur is one of the more common bones that people can identify.


Patella bone

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  • The patella, also known as the knee cap, is a triangular shaped bone found between the femur and fibula.
  • The patella is found on each leg and it’s primary function is protection of the knee joint.

Furthermore, it also allows for increased knee movement and extension.

The patella is the largest sesamoid bone in the body. A sesamoid bone is a bone that is embedded within a tendon.

Additionally, the patella is a relatively thick bone consisting of posterior and anterior sides.


Tibia bone

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  • The tibia, also known as the shinbone, is a long bone of the lower leg.
  • The tibia is found between the patella and the ankle.
  • Like the femur, the tibia bears much of the body’s weight and also plays an essential role in movement and locomotion.
  • The tibia is found in each leg and thus accounts for two bones in the total human skeletal system.
  • In males, the tibia is relatively vertical whereas in females, the tibia is more slanted to account for wider hips in females.

Additionally, the tibia is the second largest bone in the human skeleton, following the femur.


Fibula bone

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  • The fibula, also known as the calfbone, is a long bone of the lower leg running parallel to the tibia.
  • This bone is found in between the patella and the ankle.

Although the fibula is thinner than the other leg bones, the fibula still plays a role in supporting the body’s weight and allowing movement. The fibula is found on each leg.

You see not many leg bones to get an understanding of.

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LearnBones.com provides a resource on both the bones of the human skeleton and the Muscular System. Learn about the bones, memorize their names, and see their positions in the human body. To get started, click on one of categories above. If you want more information about this site, check out the About or Contact Us pages.

Test Your Knowledge

How Many Bones in the Human Body?

An adult has a total of 206 bones in their skeleton

How many Bones in a Child's Body?

A newborn baby has 270 bones in the skeletal system. Most of their skeleton is made up of cartilage which forms bone as it hardens over time. The bones in a child's skeleton fuse together as they grow, reducing the number, up until about 25 years old.

What is The Strongest Bone in the Human Body?

The femur or thigh bone is the strongest bone in the body. It is situated between the pelvis and the knee. It is also the longest bone in the body and is fully one quarter of your bodies' height.

What is the Weakest Bone in The Body?

The weakest bones in your body are the tiny bones inside your ear that enable you to hear. On the other hand; the most commonly fractured bone is the clavicle.

What is the Hardest Bone in the Body?

The hardest bone in the body is the petrous portion of the temporal bone. The temporal bones are found at the sides and base of the skull and the petrous portion is specifically the part at the base of the skull that contains the organs for hearing.

Where are the Smallest bones in Your Body Located?

The smallest bone in the body is called the stapes. It is a stirrup shaped bone found inside the ear drum that transmits vibrations enabling us to hear.

How many Bones are in the Leg?

A human leg contains 30 bones. There are 26 bones that make up the foot, and the four major bones of the leg, which are the thigh bone (femur), the shin bone (tibia), the calf bone (fibula) and the knee cap (patella)