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Various Sensory Systems

Various Sensory Systems. By Brianna Duncan Chandler Snow Stephanie York . Receptors . Mechanoreceptors- Responds to mechanical person or distortion (physically touching the skin) Thermoreceptors - neurons that are sensitive to change in temperature

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Various Sensory Systems

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  1. Various Sensory Systems By Brianna Duncan Chandler Snow Stephanie York

  2. Receptors • Mechanoreceptors- Responds to mechanical person or distortion (physically touching the skin) • Thermoreceptors- neurons that are sensitive to change in temperature • Chemoreceptors-changes chemical signal into action potential • Pain Receptors- cutaneous(skin), somatic (Joint and bones), and visceral (body organs) send noxious signals into brain in response to damage stimuli • Interoreceptors- sensory receptor that detects stimulus within the body • Exteroreceptors- Receives external stimuli

  3. Pain receptor

  4. How Hearing works • When an organism hears something the sound wave travels to the inner ear and fluid, cause it to ripple. Hair cells detect the movement and send it to the brain.

  5. Ear Diagram

  6. Eye Diagram

  7. Rhodopsin • Rhodopsin is important because it stimulates the rods nerve endings causing sight Purpose of Skeleton • Provides structure, facilitates movement, and protects the human body

  8. Muscular system and skeletal system interaction • They create the framework for the body. • The muscles are connected to the skeleton causing both to move as one.

  9. Muscle Contraction • Thick filaments are made of myosin and thin filaments are made of actin. • Muscle fibers are stimulated by motor neurons. • During contractions thick filaments grab onto the think actin filaments forming cross bridges. Myosin pull actin making the sarcomere shorter. • When its fully contracted actin and myosin are completely overlapped .

  10. Muscle contractions

  11. Types of Muscle

  12. Types of muscles

  13. Connection between smell and taste • In most organisms the way food smells affects its taste. This is because the nose detects the complex odor of the food while the tongue can only detect the taste of salty, sweet, sour, and bitter . The two work together in the brain and preserve the flavor.

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