Anatomy Final pt 2

Question 1

22. Does the olfactory sensory epithelium contain special sensory receptor cells?

Answer 1

22. Not a specialized sensory cell more of a bipolar neuron

Question 2

22. Through which bone do the olfactory nerve fibers pass to reach the olfactory bulb?

Answer 2

22. Ethmoid bone, in the cribriform plate

Question 3

23. Name one significant difference between olfactory and auditory sensory receptor cells.

Answer 3

23. The olfactory cell is a special neuron and the auditory receptor does not regenerate so you will eventually lose hearing

Question 4

24. What is a G-protein coupled receptor?

Answer 4

24. a G-protein activates a enzyme to change the cell

Question 5

25. How many different smells can humans distinguish?

Answer 5

25. 2000-4000

Question 6

26. Where specifically are taste buds found?

Answer 6

26. Pappila are taste buds

Question 7

27. How many different tastes can we distinguish? What are they?

Answer 7

27. 6 Sour, sweet, bitter, salty, water, munami

Question 8

28. What is the difference between smell, taste and flavor?

Answer 8

28. Smell and taste both create flavor

Question 9

29. Which cranial nerves innervate the taste receptors on the tongue?

Answer 9

29. Glossopharyngeal, Vagus nerve, facial

Question 10

30. Which tastes can directly influence membrane depolarization?

Answer 10

30. Salt and sour

Question 11

31. Which tastes are associated with G proteins called gustducins?

Answer 11

31. Sweet, bitter, munami

Question 12

32. What is the p[rimary function of most accessory structures of the eye?

Answer 12

32. Protecting the eye

Question 13

33. Describe where tears come from and how they circulate?

Answer 13

33. lacromol glad, lacrimal duct, Lacrimal canaliculi, lacrimal sac, nasopheranx

Question 14

34. What prevents tears from drying too quickly?

Answer 14

34. Subacous prevents tear drying

Question 15

35. Name the extraocular muscles. Which cranial nerves innervate them?

Answer 15

35. Superior oblique, inferior oblique,

Ocliomotor, Lateral rectus,

Question 16

36. What structure separates the anterior cavity from the posterior cavity?

Answer 16

36. The Retina

Question 17

37. What fluid is found in the anterior cavity? The posterior cavity?

Answer 17

37. Aqueous humor

Question 18

38. What are the three tunics of the eye?

Answer 18

38. Scalara (outer) / Fibrous
    Choroid / Vascular
    Retina (inner)

Question 19

39. Into which tunic would the extraocular muscles attach (insert)?

Answer 19

39 outermost fibrous tissue

Question 20

40. What are the two types of photoreceptors?

Answer 20

40 rods and cones

Question 21

41. Light must pass through which structures to reach photoreceptors?

Answer 21

41 pupil, lens, viscous fluid,cornia, retina

Question 22

42. How is signal transduction in photoreceptors most different from the other special senses?

Answer 22

42. Shut off the release of neurotransmitters to send signals rather than activate them