Special Senses Quiz

Why is the optic disc called the blind spot?

• There are too many photoreceptors on the optic disc.

• There are no photoreceptors on the optic disc.

• There are very little photoreceptors on the optic disc.

• There are no photoreceptors on fovea centralis.

What is the Correct Liquid for each chamber?

Scala Vestibuli

Cochlear Duct

Scala Tympani

• Scala Vestibuli = Perilymph

  Cochlear Duct = Perilymph

  Scala Tympani = Endolymph

• Scala Vestibuli = Endolymph

  Cochlear Duct = Perilymph

  Scala Tympani = Endolymph

• Scala Vestibuli = Perilymph

  Cochlear Duct = Perilymph

  Scala Tympani = Perilymph

• Scala Vestibuli = Perilymph

  Cochlear Duct = Endolymph

  Scala Tympani = Perilymph

What’s the Eustachian tube’s function?

• Equalize air pressure between the outer atmosphere & middle ear.

• Relay sound from inner ear to brain steam.

• Detects head motion & position relative to gravity.

• Transfers signals from photoreceptors of the eye to the optic nerve.

What's A-B?

• Posterior Cavity

  Anterior Cavity

• • Aqueous Humor

    Vitreous Humor

• • Vitreous Humor

    Aqueous Humor

• Anterior Cavity

  Posterior Cavity

Why is the fovea the best area of the vision?

• Has a much lower cellular concentration of photoreceptors than another location on the eye.

• Has a much lower cellular concentration of nerves than another location on the eye.

• limits uncontrolled light/filters excess light.

• Has a much higher cellular concentration of photoreceptors than another location on the eye

When sound waves vibrates the auditory ossicles, what order will they vibrate in?

• Malleus will vibrate 1st → which vibrates the Stapes → causes the Incus to vibrate against the Oval window

• Incus will vibrate 1st → which vibrates the Malleus→ causes the Stapes to vibrate against the Oval window

• Stapes will vibrate 1st → which vibrates the Incus → causes the Malleus to vibrate against the Oval window

• Malleus will vibrate 1st → which vibrates the Incus → causes the Stapes to vibrate against the Oval window

Tags

NGSS.MS-PS4-1