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A&P II > Lab Exercise 13 Quiz > Flashcards

Lab Exercise 13 Quiz Flashcards

1
Q

The cochlea is found within the inner ear and contains fluid for hearing

A

False

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2
Q

Cranial nerve associated with olfaction

A

CN I - Olfactory

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3
Q

Optic disk

A
  • located on the retina contains no rods or cones
  • where the optic nerve exists in the eyeball
  • lacks any photoreceptors
  • does not contain neurons
  • aka “blind spot”
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4
Q

Tympanic membrane

A
  • aka eardrum
  • separates external ear from middle ear
  • transmits sound from air to auditory ossicles
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5
Q

Semicircular canals

A
  • located within the inner ear and responsible for maintaining equilibrium
  • contain stereocilia
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6
Q

Ciliary body

A
  • part of the eye responsible for controlling shape of lens

* not responsible for diameter of pupil

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6
Q

Cochlea

A
  • responsible for receiving vibrations and converting them to electrical signals in ear
  • found within inner ear and responsible for hearing
  • does NOT contain fluid for hearing
  • contains stereocilia
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6
Q

Auricle

A
  • The external portion of the ear
  • aka pinna
  • NOT composed of fatty tissue
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7
Q

Sclera

A
  • The white outermost fibrous layer of the eye

* drains the aqueous humor

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8
Q

Iris

A
  • A smooth muscle that opens or closes the pupil
  • responsible for a persons eye color
  • responsible for controlling diameter of pupil
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9
Q

Macula lutea

A

• yellow spot on the retina and within it is the fovea centralis, highest density of con receptors

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10
Q

Fovea centralis

A
  • located within the macula lutea
  • has the highest density of cone receptors
  • The region of the retina where the light is most focused when the eye is looking directly at an object
  • the portion of the retina with the greatest visual acuity
  • contains only CONE cells, which are more tightly packed there than anywhere else in the retina
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11
Q

Ora serrata

A
  • The anterior border of the retina where the choroid layer is exposed
  • appears jagged edge
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12
Q

Eustachian tube

A
  • transmits CN VII from cochlea towards brain? True or false? ➡️ false
  • opens the pharynx and equalizes air pressure between outside air in the middle ear cavity
  • found between MIDDLE ear and pharynx
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13
Q

Lacrimal gland

A

•found on LATERAL side of orbit and responsible for production of tears

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14
Q

Cornea

A
  • the transparent layer of the fibrous layer
  • continuation of sclera
  • “window of the eye” helps focus light into lens
15
Q

Optic nerve

A
  • composed of neurons found in the retina
  • composed of neurons found in the sclera? True of false? ➡️ false
  • CN II - optic nerve
  • lead away from eyeball toward cerebral visual cortex
16
Q

Olfactory nerve exit

A

foramina of cribriform plate

17
Q

Ossicles of the ear

A
  • malleus (hammer)
  • incus (anvil)
  • stapes (stirrup)
18
Q

CN VII - facial nerve

A

• responsible for sense of taste

19
Q

Vitreous humor

A
  • The content of region behind the lens, also called the posterior cavity
  • made of semisolid material, keep the eyeball from collapsing, lasts a lifetime
  • jelly like substance that fills the space between the lens in the retina
  • helps maintain intraocular pressure
  • functions in the re-fraction of light in the eye
20
Q

Optic chiasm

A
  • point where optic nerves are connected to each other just inside the cranial cavity and anterior to the pituitary gland
  • area where medial ganglion cell axons cross over and project to opposite side of brain
21
Q

Responsible for receiving vibrations and converting them to electrical signals

A

• auditory ossicles?

21
Q

CN VIII - Vestibulicochlear nerve

A
  • along this nerve the hair cells of the in we ear transmit information to the brain
  • consists of cochlear nerve (carrying info about hearing); and the vestibular nerve (carrying info about balance)
22
Q

CN I is responsible for

A

•olfaction

23
Q

Lens

A

• responsible for amount of light that enters the eye

24
Q

The cochlea is found within inner ear and contains fluid for hearing

A

➡️ false

-find out why this is false

25
Q

The optic disk is the location on the retina that contains neurons

A

➡️false

-find out what area this is referring to ➡️ optic nerve

A&P II (7 decks)

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