Chapter 17 Special Senses

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1

Olfactory receptors are found

Only in the superior portion of the nasal cavity

2

These cells provide for the sense of smell

Olfactory hair cells

3

These provide physical support, nourishment and electrical insulation for olfactory receptors

Supporting cells

4

Adaptation

Occurs rapidly

5

The olfactory tract

Projects to the cortical region controlled by the limbic system and part of the amygdala

6

These cells provide for the sense of taste

Gustatory cells

7

Taste buds are found

In the Epiglottis, pharynx, and the soft palate

8

Which of the following papillae do not contain taste buds

Filiform

9

Which of the following nerves serves in a gustatory function

Vagus

10

Which is not considered an accessory structure of the eye

Retina

11

Which of the following is the space between the upper and lower eyelids

Palpebral fissure

12

This is a thin layer that protects the anterior surface of the eyeball

Conjectiva

13

Infection of a sebaceous ciliary gland can result in

Sty

14

Which is the correct order in the flow of tears

Lacrimal gland, excretory lacrimal duct, superior of inferior lacrimal canal, lacrimal sac, nasolacrimal duct, and nasal cavity

15

How many extrinsic eye muscles are responsible for moving the eye

6

16

This is the transparent coat that covers the iris

Cornea

17

The main function of this structure is to regulate the amount of light entering the eyeball through the pupil

Iris

18

The lens is made of layers of protein called

Crystallins

19

This lies between the lens and the retina

Vitreous chamber

20

This structure protects the inner parts of the eyeball

Sclera

21

This darkly pigmented structure reduces light reflection within the eyeball

Chorid

22

Which of the below receptors is primarily used during high light situations

Cones

23

The first step in visual transduction is

Absorbing light by photopigments

24

Binocular vision

Gives depth perception

25

Which of the below structures acts to convert sound waves to vibrations

Tympanic membrane

26

Which of the below structures converts vibrations to action potentials

Organ of corti

27

Which of the below structures carries action potentials caused by sound transduction

Vestibulocochlear nerve

28

Outer layer is

Fibrous Tunic

29

What are made uo of gustatory receptor cells, supporting cells, and basal cells

Taste Buds

30

A bipolar neuron with cilia called olfactory hairs, also respond to an ordant when dissolved in mucus

Olfactory Receptor cell

31

Provide support and nourishment

Supporting cells

32

Replaces receptor cells

Basal cells

33

Respond to a tastant when dissolved in saliva

Gustatory receptor cells

34

What five types of taste are there

Bitter, Sweet, Sour, Salty, and Umami

35

Mucus membrane covering outer surface of the eyeball

Conjunctiva

36

"White" of the eye

Sclera

37

Transparent covering where light enters the front of eyeball

Cornea

38

The innermost layer of the eye; lines the sides and back of the eye

Retina

39

The central opening of the iris

Pupil

40

A thickened region that begins deep to the junction between the cornea and the sclera. Consists of the ciliary muscle and the ciliary processes.

Ciliary body

41

A vascular layer that separates the fibrous layer and the inner layer posterior to the ora serrata

Choroid

42

Middle layer

Vascular Tunic

43

A circular region just medial to the fovea; also known as the blind spot

Optic disk

44

A watery, fluid that circulates within the anterior cavity

Aqueous humor

45

A glassy, jellylike fluid located inside the bottom portion of the eye

Vitreous humor

46

Lacks blood vessels, consists of a capsule with proteins (crystallins) in layers; transparent

Lens

47

Cornea or lens has irregular curvature

Astigmatism

48

Distant objects seen clearly

Farsightedness (Hyperopia)

49

Close objects seen clearly

Nearsightedness (Myopia)

50

Is the automatic adjustment of the eye to give us clear vision

Accommodation

51

The lens divides the eyeball into two cavities; both are filled with aqueous humor

Anterior cavity--Anterior and Posterior chambers

52

Filled with vitreous humor; also known as vitreous chamber

Posterior cavity

53

Vitamin A deficiency causes

Night blindness (Nyctalopia)

54

Inherited inability to distinguish between certain colors

Color blindness

55

Maintenance of the body position relative to the force of gravity

Static Equilibrium

56

Maintenance of body position (mainly head) in response to rotational, acceleration and deceleration

Dynamic Equilibrium

57

A mass of gelatinous material covering the crista

Cupula