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Hip Bones | Hip Anatomy

The Hip Bones and Hip Anatomy

  • The hip, also known as the pelvic girdle, consists of an irregularly shaped bone known as the innominate or coxal bone.
  • Although the sacrum and coccyx bones are located in the pelvis, they anatomically belong to the vertebral column bones and thus are not known as hip bones.
  • The pelvic girdle is located behind and below the abdomen and its primary function is to support the upper body when sitting or standing.

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

Hip Bones

List of all Hip Bones


  • hip bone (innominate bone or coxal bone) (2)

Hip Bone

Hip bone

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  • The hip bone, also known as the coxal or innominate bone, is an irregularly shaped bone found in the pelvic region.
  • This bone consists of the fusion of three smaller bones and generally this fusion occurs as one approaches adulthood.
  • The human skeleton contains two hip bones that together join to form the wall of the pelvic cavity.
  • Like other bones in the body, the hip bone plays an important role in movement.
  • The hip bone is the site of the hip joint, where a ball and socket joint exists.

Additionally, the hip bone plays a role in support of the body whilst standing or sitting.

The ilium, ischium, and pubis are the three smaller bones that fuse together to form the pelvic.

Furthermore, the entire pelvis is composed of

  • the hip bone
  • sacrum
  • and coccyx

The Hip Bones and some hip anatomy for you.

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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)