Question

Consider the diagram given below.
Parts labeled as A, B, C, D, E, and F respectively indicate.

(A) Sacrum, ilium, pubis, femur, tibia and fibula
(B) Ilium, pubis, sacrum, femur, fibula and tibia
(C) Sacrum, pubis, ilium, femur, tibia and fibula
(D) Ilium, sacrum, pubis, femur, tibia and fibula

Answer 1

Hint: Bones of the hindlimb are named as Femur, Tibia, Fibula, tarsals, metatarsals, and phalanges. Hind limb is connected to the hip bone. The joint present between Femur and hip bone is the ball and socket joint. Hip bone is also known as the Pelvic girdle. Articulation of lower limbs with the axial skeleton is regulated by the help of the Pelvic girdle.

Complete answer:
Bones of the pelvic girdle are also known as coxal bone or innominate bone. These coxal bones are made by the fusion of Ilium, Ischium, and pubis bone.
The separation between the ischium and pubis is done by the obturator foramen that is nothing but a large opening.
The two halves of the pelvic girdle from the pubis symphysis. Fibrous cartilage is present in the pubis symphysis.
The sacrum is a large flattened bone that is formed by the fusion of five sacral vertebrae. It is triangular in shape.
The longest bone in the human body belongs to the bones of the hindlimb and is known as Femur.
The femur articulates with acetabulum with the help of a ball and socket joint to form the hip joint. The head of the femur fits into the acetabulum cavity of the pelvic girdle.
Tibia is known as the medial and larger bone of the leg. Tibia articulates with the femur.
The lateral bone of the leg is called Fibula. It is smaller in size. The lower end of the fibula is fused with the tibia. The joint is known as the tibiofibular joint which is an immovable joint.

Therefore the correct option is (D) Ilium, sacrum, pubis, femur, tibia, and fibula.

Note:
Pelvic diameter is larger in females than in males. This change is to facilitate fetus birth during pregnancy. The femur is not just the largest but also the strongest and heaviest bone. The joint between the femur and tibia is called the condylar joint.