BMD 330: Human Physiology

Chapter 10 Objectives

Sensory Physiology

Basic Sensory Physiology

1. Name the major classes of receptors

2. Define the Law of Specific Nerve Energies, modality, adequate stimulus, transduction, and adaptation

3. Compare/contrast rapidly- to slowly-adapting receptors

4. Describe sensory pathways: first order, second order, and third order neurons

5. Define a sensory unit

6. Define receptive fields

7. Describe how we code stimulus type, stimulus intensity, and stimulus location

8. Describe 2-point discrimination

9. Describe lateral inhibition

10. Explain why our perception is not necessarily what is actually present in the world

Somatosensory System

11. Name the main sensory receptors associated with the skin

12. Define proprioception

13. Describe the dorsal-column pathway

14. Describe the spinothalamic tract

15. Define the three classes of nociceptors

16. Explain fast vs. slow pain

17. Explain the gating theory of pain

18. Explain the phenomenon of referred pain

19. Compare/contrast warm and cold receptors

Smell

20. Describe the olfactory epithelium

21. Describe the transduction process for olfactory receptors

22. Describe the two neural pathways of olfaction

Taste

23. Describe a taste bud and chemoreceptors

24. Name the 4 primary tastes and describe the mechanism of transduction for each

Hearing

25. Describe the properties of sound waves

26. Describe the anatomy of the ear

27. Describe the process of sound amplification in the middle ear

28. Describe the process of sound transduction in the inner ear

29. Describe the coding of pitch and loudness of sound

30. Describe the neural pathway for hearing

31. Compare conductive, sensorineural, and central deafness

Vestibular System

32. Describe the vestibular apparatus and its role in angular vs. linear acceleration

33. Describe the process of transduction in the vestibular apparatus

34. Describe the neural pathways for maintaining balance and equilibrium

Vision

35. Describe the anatomy of the eye

36. Describe the refraction of light as it moves through concave and convex surfaces

37. Define the focal point

38. Describe accommodation

39. Define the following clinical defects: presbyopia, cataract, astigmatism, myopia, hyperopia, and

40. Describe the mechanisms for regulating light entering the eye

41. Describe the anatomy of the retina and photoreceptors

42. Describe the process of phototransduction

43. Compare/contrast rods to cones

44. Describe the neural pathway for vision