The Senses
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The Senses. TRUE OR FALSE: You hear with your ears, taste with your tongue, and see with your eyes. False. Your ears, eyes, tongue etc collect stimuli, but your brain interprets the Stimuli. Sense: Hearing Ear Anatomy. Pinna Outer ear Eardrum

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TRUE OR FALSE: You hear with your ears, taste with your tongue, and see with your eyes.

False

Your ears, eyes, tongue

etc collect stimuli, but

your brain interprets the

Stimuli.


Sense hearing ear anatomy
Sense: Hearing tongue, and see with your eyes.Ear Anatomy

  • Pinna

    • Outer ear

  • Eardrum

    • Amplifies sound by 3 bones: malleus, incus, stapes

  • Cochlea

    • Contains mechanoreceptors (measures pressure)


Sound transmission
Sound tongue, and see with your eyes.Transmission

1) Sound waves (vibration of the air) enters the ear canal

2) Eardrum & the small bones vibrate

3) Fluid in the cochlea vibrates

4) Hair cells in the cochlea bend

5) Impulse transmitted through the auditory nerve and to the brain


Sound Transition Animation tongue, and see with your eyes.


Sense sight eye anatomy
Sense: Sight tongue, and see with your eyes.Eye Anatomy

  • Cornea

    • Protective layer of the eye

  • Iris

    • Colored part of the eye

    • Contains muscles to open & close the pupil

  • Pupil

    • Size adjusts with light

      • Small: more light present

      • Large: less light present

  • Lens

    • Focuses light onto the retina

  • Retina

    • Back of the eye

    • Contains photoreceptors

      • Rods- detect absence of light (b & w)

      • Cones- detect color

  • Optic Nerve

    • Sends impulses to brain


Vision process
Vision Process tongue, and see with your eyes.

#3

  • 1) Light passes through pupil

  • 2) Lens focuses light onto retina

  • 3) Photoreceptors (rod and cone cells) of the retina create impulses

  • 4) Impulse travels up optic nerve to brain

#2

#1


The shape of the cornea can change where the light gets focused… that’s what causes near or far sightedness


Read the color of the text focused… that’s what causes near or far sightedness

Read the color of the text


Cow Eye Dissection focused… that’s what causes near or far sightedness


Sense smell taste

Nose focused… that’s what causes near or far sightedness

Scent chemicals dissolve in mucus

Impulse travels from olfactory nerve to brain

Tongue

Chemicals dissolve in saliva

Chemoreceptors in taste buds creates impulse

Sense: Smell & Taste


Sense touch temperature pain pressure
Sense: Touch (Temperature, Pain, Pressure) focused… that’s what causes near or far sightedness

  • Mechanoreceptors in skin sense pressure

    • Upper layer: gentle touches

    • Lower layer: heavy pressure

  • Thermoreceptors & Pain receptors detect temps and chemicals released by damaged cells

  • Impulses sent to brain


REview focused… that’s what causes near or far sightedness

  • Name the 5 senses.

  • Label the diagram of the eye.

  • Which eye part:

    • Protects the outer eye?

    • Contains rod and cone cells?

    • Focuses light?

  • Name the three bones behind the ear drum?

  • Name the bone of the ear that has hair cells.

  • Which sense is:

    • related to the optic nerve?

    • related to the olfactory nerve?

    • related to the auditory nerve?

  • Which receptors detect temperature changes?


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