Question

The figure is showing the part of the right pelvic girdle and lower limb bones. Identify the parts labelled as A to E and select the correct option –

a. A-Sacrum, B-Pubis, C-Patella, D-Metatarsal, E-Fibula
b. A-Ilium, B-Ischium, C-Femur, D-Tibia, E-Fibula
c. A-Ilium, B-Ischium, C-Femur, D-Fibula, E-Tibia
d. A-Ischium, B-Ilium, C-Patella, D-Tibia, E-Tarsal

Answer 1

The longest bone of a human is Femur which is the thigh bone. Among the two bones of the lower leg region, the thin bone is called fibula while the thickest one is tibia.

Complete answer: Starting from the top of the leg of humans, the first large and broadened bone present is called pelvic girdle. The pelvic girdle contains upper ilium and lower ischium. Below the pelvic girdle, the longest bone of humans is present, named femur. Under the femur two bones are present together called tibia and fibula. The thick bone is called tibia, while the thin one is called fibula.

Hence, the correct answer is option (B).

Additional information:
The femur, or thighbone, is the longest and largest bone in the human body. It helps create the ball-and-socket joint of the hip. The second largest bone in the body is the tibia or shinbone. This bone connects with the knee at one end and the ankle at the other. Next to the tibia is the fibula. It is the thinner, weaker bone of the lower leg. It is also known as the calf bone. Next is the patella which is commonly known as the kneecap, is at the center of the knee. It assists in knee extension and protects the joint. As the knee bends, the patella also slides along a groove in the femur. Below the tibia and fibula, there are seven bones, which are known as the tarsals. These make up the ankle and upper portion of the foot providing a structure for walking.

Note: The leg, limb or appendage of an animal, are used for providing support to the body, to provide locomotion, and in modified form, assist in capturing and eating prey as seen in few organism like shellfish, spiders, and insects. The bones of the human leg consist of a basal segment, the femur (thighbone), an intermediate segment that is the tibia (shinbone) and the smaller fibula and a distal segment (foot). The foot consists of tarsals, metatarsals, and phalanges.