Special Senses Flashcards

1
Q

Number of nose receptors

A

10 - 100 million

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2
Q

First order neurons of olfactory pathway

A

Olfactory Receptors

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3
Q

Cilia that project from the dendrite

A

Olfactory hairs

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4
Q

Stimulate the olfactory hair

A

Odorants

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5
Q

Are columnar epithelial cells of the mucous lining of the nose

A

Supporting cells

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6
Q

Provide support, nourishment, and electrical insulation for the olfactory receptors

A

Supporting cells

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7
Q

3 cells of the olfactory epithelium

A
  1. Olfactory receptors
  2. Supporting Cells
  3. Basal Cells
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8
Q

Sense of taste is otherwise known as __

A

Gustation

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9
Q

Hair-like structures that give the tongue its rough texture

A

Lingual Papillae

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10
Q

What are the 4 types of papillae?

A
  1. Circumvallate Papillae
  2. Fungiform Papillae
  3. Filiform Papillae
  4. Folliate Papillae
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11
Q

All except this papillae have taste buds

A

Filiform Papillae

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12
Q

It is located at the midline of the tongue. It is a fold of mucous membrane that connects the tongue to the floor of the oral cavity.

A

Lingual Frenulum

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13
Q

Enumerate the map of taste receptors.

A
  1. Sweet
  2. Salty
  3. Sour
  4. Bitter
  5. Umami
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14
Q

Enumerate the accessory structures of the eye.

A
  1. Eyelid
  2. Eyelashes
  3. Eyebrows
  4. Lacrimal Apparatus
  5. Extrinsic eye muscles
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15
Q

They shade the eyes during sleep.

A

Eyelids

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16
Q

They protect the eyes from excessive light and foreign objects.

A

Eyelids

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17
Q

They spread lubricating secretions over the eyeballs.

A

Eyelids

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18
Q

They help protect the eyeballs from foreign objects, perspiration, and direct rays of the sun.

A

Eyelashes / Eyebrows

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19
Q

It is a group of structures that produces and drains lacrimal fluid or tears.

A

Lacrimal apparatus

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20
Q

These are the muscles responsible for eye movement.

A

Extraocular muscles

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21
Q

Extraocular muscles that allows eyes to look upward and laterally.

A

Superior rectus

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22
Q

Extraocular muscles that allows eyes to look downward and laterally.

A

Inferior rectus

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23
Q

Extraocular muscles that allows eyes to look laterally.

A

Lateral rectus

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24
Q

Extraocular muscles that allows eyes to look medially.

A

Medial rectus

25
Q

Extraocular muscles that allows eyes to look downward and medially.

A

Superior oblique muscle

26
Q

Extraocular muscles that allows eyes to look upward and medially.

A

Inferior oblique muscle

27
Q

The lateral rectus is innervated by what cranial nerve??

A

Cranial nerve 6 - Abducens

28
Q

The superior oblique muscle is innervated by what cranial nerve?

A

Cranial nerve 4 - Trochlear nerve

29
Q

All extraocular muscles except the lateral rectus and superior oblique are innervated by what cranial nerve?

A

Cranial nerve 3 - Oculomotor nerve

30
Q

It is a part of the eyeball that admits and refracts (bends) light.

A

Cornea

31
Q

It is a part of the eyeball that provides shape and protects inner parts.

A

Sclera

32
Q

It is a part of the eyeball that regulates the amount of light that enters it.

A

Iris

33
Q

It is a part of the eyeball that secretes aqueous humor and alters shape of lens for near or far vision (accomodation)

A

Ciliary body

34
Q

It is a part of the eyeball that provides blood supply and absorbs scattered light.

A

Choroid

35
Q

It is a part of the eyeball that receives light and converts into receptor potentials and nerve impulses. Output to brain is via axons of ganglion cells which form the optic (II) nerve.

A

Retina

36
Q

It is a part of the eyeball that refracts light.

A

Lens

37
Q

It is a part of the eyeball that contains the aqueous humor that helps maintain shape of eyeball and supplies oxygen and nutrients to lens and cornea.

A

Anterior cavity

38
Q

It is a part of the eyeball that contains vitreous body that maintains shape of eyeball and keeps retina attached to the choroid.

A

Vitreous chamber

39
Q

What are the 3 parts of the auditory system?

A

1, External (outer) ear

  1. Middle ear
  2. Internal (inner) ear
40
Q

It collects sound waves and channels then inward.

A

External ear

41
Q

It is a flap of elastic cartilage shaped like the flared end of a trumpet and covered by skin.

A

Auricle (pinna)

42
Q

It is a curved tube long that lies in the temporal bone and leads to the eardrum.

A

External acoustic meatus or External auditory canal

43
Q

It is a thin, semitransparent partition between the external auditory canal and middle ear.

A

Tympanic membrane (eardrum)

44
Q

True or false.

Tearing of the tympanic membrane may be due to the pressure from cotton swab, trauma, or middle ear infection.

A

TRUE

45
Q

It conveys sound vibrations to the oval window.

A

Middle ear

46
Q

Enumerate the three auditory ossicles. Include their common names.

A
  1. Malleus (hammer)
  2. Incus (anvil)
  3. Stapes (stirrup)
47
Q

It attaches to the internal surface of the tympanic membrane.

A

Malleus (hammer)

48
Q

It is the middle bone of the series and articulates with the head of the stapes.

A

Incus (anvil)

49
Q

It houses the receptors for hearing and equilibrium. Also called the labyrinth.

A

Internal ear

50
Q

It is the nerve that innervates the ear.

A

Vestibulocochlear nerve

51
Q

A part of the external ear that collects sound waves.

A

Auricle (pinna)

52
Q

it directs sound waves to the tympanic membrane.

A

External auditory canal / acoustic meatus

53
Q

The sound waves cause it to vibrate which in turn causes the malleus to vibrate.

A

Tympanic Membrane

54
Q

They transmit and amplify vibrations from tympanic membrane to oval window.

A

Auditory ossicles

55
Q

It equalizes air pressure on both sides of the tympanic membrane.

A

Eustachian tube

56
Q

It contains a series of fluids, channels, and membranes that transmit vibrations to the spiral organ (Organ of Corti)

A

Cochlea

57
Q

It includes semicircular ducts, utricle, and saccule, which generate nerve impulses that propagate along the vestibular branch of the cranial nerve 8.

A

Vestibular apparatus

58
Q

They contain cristae, site for hair cells for dynamic equilibrium.

A

Semicircular ducts

59
Q

Contains macula, site for hair cells for static equilibrium.

A

Utricle and saccule