Final answer:
The study of touch is known as haptics and is part of the broader field of somatosensation. Touch involves various sensations like pressure, temperature, and pain, detected by mechanoreceptors spread across the skin and other organs.answer is option 2.
Step-by-step explanation:
The study of touch is called haptics. This field encompasses our ability to perceive sensations through contact, such as pressure, vibration, temperature, and pain, which are detected by various sensory receptors throughout the body, particularly in the skin. In biology, touch is known as somatosensation, which is considered a general sense, as opposed to special senses like taste or sight. Receptors involved in touch, known as mechanoreceptors, are not limited to one specific organ but are distributed widely in the skin, muscles, and other tissues.
When we touch something, say a smooth stone, the tactile sensation is transmitted to the brain via the nervous system. The nerve endings in the skin pick up the sensation of smoothness, which then sends signals through neurons to the brain where the sensation is registered.