Mechanoreceptors: Sensory receptors that respond to mechanical stimuli such as touch, pressure, hearing, and equilibrium. They detect physical deformation of the skin or tissues caused by external forces or body movements.
Chemoreceptors: Receptors that respond to chemical stimuli. They are involved in detecting smell (olfaction), taste (gustation), and chemical changes such as oxygen levels and pH in the blood.
Photoreceptors: Specialized cells that respond to light stimuli, enabling vision. They convert light into electrical signals sent to the brain.
Thermoreceptors: Receptors that detect changes in temperature, allowing the body to perceive heat and cold sensations.
Vestibular receptors: Located within the inner ear, these receptors detect movement and spatial orientation, contributing to balance and equilibrium.
Proprioception receptors: Found in muscles, tendons, and joints, these receptors provide awareness of body position relative to space, informing the brain about limb positioning without visual cues.
1. How do mechanoreceptors and chemoreceptors differ in the types of stimuli they detect?
2. When was the modern scientific understanding of the eye's function as a light receptor established?
3. Which type of sensory receptor is primarily responsible for detecting light stimuli for vision?
Types of sensory receptors
They detect mechanical, chemical, light, temperature, or balance stimuli.
Sense organs and functions
Organs like the eye, ear, skin, nose, and tongue detect specific stimuli for perception.
Mechanoreceptors — function?
Respond to mechanical stimuli like touch and pressure.
Chemoreceptors — stimuli?
Detect chemical stimuli, including smell and taste.
Photoreceptors — function?
Respond to light, enable vision.
Vestibular receptors — role?
Detect movement and spatial orientation for balance.
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