An Arch on the Underside of the Foot Is Important

question 32

Multiple Choice

An arch on the underside of the foot is important because it

• A) provides cushioning against the ground.
• B) provides more room between the phalanges.
• C) provides room for blood vessels and nerves on the inferior aspect of the foot.
• D) gives better traction of the feet against the ground when walking or running.
• E) is necessary.

---

Definitions:

Receptor Molecule

A protein on the surface of a cell that binds to specific molecules, triggering a response in the cell.

DNA

Deoxyribonucleic acid, a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.

Nuclear Receptor Model

A conceptual framework explaining how specific receptors within cell nuclei regulate gene expression in response to hormones and other molecules.

Paracrine

A form of cell signaling where cells communicate by releasing molecules that affect nearby target cells in the local area.