Which sense requires direct contact with the body through contact receptors?

Which sense requires direct contact with the body through contact receptors?

• A. Sense of Touch
• B. Sense of Hearing
• C. Sense of Vision
• D. Sense of Smell

Answer: (A)

Touch relies on direct contact with the object to stimulate receptors in the skin. The skin has mechanoreceptors that respond when something presses, strokes, or deforms it, so sensing texture, temperature, and pressure requires actually touching the surface. In contrast, vision uses light waves entering the eyes, hearing uses sound waves vibrating the eardrum, and smell detects airborne molecules in the nasal passage. These senses can be experienced without physically touching the source. So the sense that requires direct contact through skin receptors is touch.

Touch relies on direct contact with the object to stimulate receptors in the skin. The skin has mechanoreceptors that respond when something presses, strokes, or deforms it, so sensing texture, temperature, and pressure requires actually touching the surface. In contrast, vision uses light waves entering the eyes, hearing uses sound waves vibrating the eardrum, and smell detects airborne molecules in the nasal passage. These senses can be experienced without physically touching the source. So the sense that requires direct contact through skin receptors is touch.