Question

The condition known as "flat feet" is due to a lower than normal longitudinal arch in the foot. A problem with which of the following would most likely contribute to this condition?

A) a loose Achilles tendon
B) weak tarsometatarsal joints
C) weakness in the ligaments and tendons that attach the calcaneus to the distal ends of the metatarsals
D) weakness in the ligaments and tendons that attach the talus to the calcaneus
E) poor alignment of the phalanges with the metatarsals

Answer 1

Flat feet, or pes planus, is caused by a decreased medial longitudinal arch, which can result from weakness in the ligaments and tendons that attach the calcaneus to the distal ends of the metatarsals.

Step-by-step explanation:

The condition known as "flat feet" or pes planus is commonly due to a decreased medial longitudinal arch in the foot. This decrease can occur because of issues with the ligaments and tendons that support this arch. Among the options provided, weakness in the ligaments and tendons that attach the calcaneus to the distal ends of the metatarsals (option C) would most likely contribute to flat feet. These ligaments and tendons are crucial in maintaining the integrity of the longitudinal arches. When they are over-stretched, they can lead to a collapse or depression of these arches, particularly the medial longitudinal arch, which can manifest as flat feet.