Final answer:
The fingertips have a high concentration of sensory nerve fibers, making them sensitive to touch, temperature, and pain. In case of an epidermal burn, free nerve endings are the receptor type most likely affected as they detect heat and pain.
Step-by-step explanation:
Fingertips Sensory Structures
The fingertips are most abundant in d. sensory nerve fibers, which are responsible for the high level of tactile sensations in this part of the body. Fingertips can feel textures, temperatures, and pain more acutely due to the higher concentration of sensory receptors, such as free nerve endings, Meissner's corpuscles, and Pacinian corpuscles, compared to other parts of the body.
Burns and Receptor Types
If you were to burn your epidermis, the type of receptor you would most likely burn is a. free nerve endings. These receptors are sensitive to a variety of stimuli, including heat, which is why we are able to quickly react to painful heat exposure. The epidermis contains a dense network of these nerve endings, providing us with vital protective sensations of pain.