A person with CIPA (Congenital Insensitivity to Pain with Anhidrosis) is unable to feel pain or temperature due to the dysfunction of specific sensory receptors.
CIPA primarily affects thermoreceptors, which are responsible for sensing temperature, and nociceptors, which are responsible for sensing pain. Since nociceptors weren't listed in the options, the most appropriate choice from the given responses would be:
thermoreceptors and mechanoreceptors.
This choice reflects the impact on thermoreceptors (temperature sense) and mechanoreceptors (which can sense touch and pressure, although not specifically mentioned in pain).
10 answers