EVERYDAY SCIENCE

SCIENCE

SKELETAL SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Bones of the arms and legs, such as the humerus, femur, and tibia are part of which skeleton?
A
Axial
B
Appendicular
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The bones of the appendicular skeleton make up the rest of the skeleton, and are so called because they are appendages of the axial skeleton. The appendicular skeleton includes the bones of the shoulder girdle, the upper limbs, the pelvic girdle, and the lower limbs.

Detailed explanation-2: -The pelvis, femur, fibula, tibia and all of the foot bones as well as the scapula, clavicle, humerus, radius, ulna and all of the hand bones are classified as appendicular.

Detailed explanation-3: -Thighs and legs (8 bones)-Left and right femur (2) (thigh), patella (2) (knee), tibia (2) and fibula (2) (leg). Feet and ankles (52 bones)-Left and right tarsals (14) (ankle), metatarsals (10), proximal phalanges(10), intermediate phalanges (8) and distal phalanges (10).

Detailed explanation-4: -The lower limbs consists of the thigh, the leg, and the foot. The bones of the lower limb are the femur (thigh bone), patella (kneecap), tibia and fibula (bones of the leg), tarsals (bones of the ankle), and metatarsals and phalanges (bones of the foot).

Detailed explanation-5: -The femur is the appendicular skeletal bone connected to the pelvis at the acetabulum, a bony ring formed by the fusion of three bones: the ilium, ischium, and pubis.

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