Which of the following best describes phalanges?

Phalanges are the bones that make up the fingers and toes, which is the primary reason this choice is correct. Each finger contains three phalanges (proximal, middle, and distal), while the thumb has two. In the toes, there are also three phalanges for each toe, except for the big toe, which has only two. This structure is essential for the functionality and dexterity of the hands and the balance involved in walking.

The other choices do not correctly describe phalanges: bones in the wrist are known as carpals, bones in the foot refer collectively to the tarsals or metatarsals, and bones in the skull are called cranial bones. Each of these sets of bones serves distinct functions in the body and is anatomically different from the phalanges.