Question

Consider the diagram given above. Parts labelled as A, B, C, D, E respectively indicate

Ilium, femur, tibia, pubis and sacrum
Pubis, tibia, femur, ilium and sacrum
Ilium, tibia, femur, pubis and sacrum
Pubis, tibia, femur, ilium and ulna

Answer 1

The above diagram represents the lower part of the human skeleton. It comprises hip and leg bones. The lower body comprises 30 bones. The longest bone of our body is the thigh bone and leg consisting of two bones, tibia and fibula.

Complete step-by-step solution:
The lower part of the body refers to hips to toes. It includes hip, knees, bones of thigh, leg, foot and ankle joint. The diagram given in the question is of the lower part of the body. The parts are as follows:

A. Ilium- It is the largest of the three bones present in the pelvis. It is flat and cup shaped that has a large crest at the anterior side.
B. Femur: It is also called the thigh bone. It is the largest bone present in our body.
C. Tibia: It is the bone present at the lower leg which extends from knee to ankle. It is also large and strong as it bears the weight of the entire body. The other bone present in the lower leg is fibula. Tibia is also known as shankbone.
D. Pubis: It is one of the three bone presents in the pelvis. It forms half of the pelvis.
E. Sacrum: It is a wedge like bone present at the base of the lumbar vertebrae. It is connected to the pelvis.
Ulna: It is found in the forearm.

Thus the correct answer is option ‘A’.

Note: The bones in the lower part of the body are strong and long as they have to bear the weight of the entire body. The fractures in the bones of the limbs and joints are very common. The knee and hip are prone to degradation by osteoarthritis. Replacement therapy is helpful in this condition.