Which is a finger bone?
a. Calcaneus
b. Phalanx
c. Tarsal
d. Tibia
The correct answer and explanation is:
The correct answer is b. Phalanx.
Phalanges are the bones that make up the fingers and toes. Each finger (except the thumb) has three phalanges: the proximal, middle, and distal phalanges. The thumb, however, only has two: the proximal and distal phalanges. These bones are part of the hand and play a crucial role in grasping and manipulating objects. They are located in the digits (fingers) and are designed to provide flexibility and mobility.
The calcaneus is the heel bone and is part of the foot, not the hand. It provides support and helps in weight-bearing during walking and running.
The tarsals are a group of seven bones in the foot, which include the calcaneus. They are not found in the hand or fingers.
The tibia is the shin bone, located in the lower leg. It is much larger and stronger than the fibula, which is the smaller bone next to it. The tibia bears most of the body’s weight while walking and running.
The structure of the phalanges allows for a high degree of dexterity and precision in the fingers. The joints between these bones, known as interphalangeal joints, enable movements like bending and straightening, which are vital for various tasks such as writing, typing, and holding objects.