Question 17

An especially thick stratum corneum is expected in the heel of the foot.

The heel of the foot typically has a thicker stratum corneum compared to other areas of the body due to the increased mechanical stress and pressure it endures during activities such as walking and running.

A) Back of the hand

The back of the hand has a thinner stratum corneum compared to areas subject to greater friction and pressure, such as the heel. While it does provide some protection, it is not as thick as that found on the heel.

B) Heel of the foot

This area is characterized by an especially thick stratum corneum to protect against the constant wear and tear from standing and walking. The thickened skin helps absorb shock and reduce friction, making it the correct answer.

C) Abdomen

The abdomen typically has a thinner stratum corneum as it is not exposed to the same level of mechanical stress as the heel. The skin here is more pliable and less robust compared to areas that require additional protection.

D) Over the shin

The skin over the shin has a moderate stratum corneum thickness, but it is not as thick as that of the heel. The shin area is relatively less subjected to the same level of friction and pressure, making it less likely to require a thickened protective layer.

Conclusion

The heel of the foot is definitively the area where an especially thick stratum corneum is found due to the high level of mechanical stress it experiences. Other areas, such as the back of the hand, abdomen, and shin, do not require the same level of protection, resulting in thinner skin layers. Thus, option B is the most appropriate choice.