Sensory Receptors

• What are the 5 general categories of sensory receptors

  • Pain receptors
  • Thermoreceptors
  • Mechanoreceptors
  • Chemoreceptors
  • Photoreceptors
• ____ are neurons which receive stimuli from the environment; they send impulses to other neurons and to the central nervous system

  Sensory receptors
• Throughout the body except in the brain; respond to chemicals released by damaged cells ; indicates danger, injury, or disease.

  Pain receptors
• Located in the skin, body core, and hypothalamus and they detect variations in temperature.

  Thermoreceptors
• Are found in the skin, skeletal muscles, and inner ears and are sensitive to touch, pressure, stretching of muscles, sound, and motion.

  Mechanoreceptors
• Located in the nose and taste buds, are sensitive to chemicals in the external environment.

  Chemoreceptors
• Found in the eyes, are sensitive to light.

  Photoreceptors