Eye Anatomy Lesson

Nervous System (Senses)

Carter, Trent, Collin, Seth

What are the senses

Somatic senses

●touch

●sound

●smell

●taste

Special senses

●smell

●sight

●taste

●hearing & balance

Multiple Choice

What are the somatic senses?

• Smell, Sight, Taste, and Hearing and Balance

• Touch, Sound, Smell, and Taste

Receptors

Mechanoreceptors = touch

thermoreceptors = temperature

nocireceptors = pain

chemoreceptors = chemicals

photoreceptors = light

Pathway of eye

1.

Light enter eye through

cornea and pupil

2.

light passes lens next

3.

light hits optic nerve and

then the brain

Multiple Choice

Where does light enter the eye?

• Cornea and Pupil

• Optic Nerve

Pathway of ear

1.

Sound waves come into the

outer ear (auditory canal)

2.

sound hits tympanic

membrane

3.

sound passes along with the

ossicles and is amplified

4.

sound hits cochlea and is
turned into electrical pulses

5.

auditory nerve transfers these

pulses to the brain

Multiple Choice

The cochlea turns sounds into electrical impulses

• False

• True

Diseases and disorders

Cataracts cause your eye(s) to be cloudy

Tinnitus is caused by loud sounds and causes
ringing

Covid can cause you to lose smell and or taste.

Multiple Choice

Cataracts effect what part of the body?

• Eyes

• Ears

• Nose

Functions

●The function of the senses is

so we can perceive

●A reflex arc is the path way of

the reflexes

Involving

1.

Receptors

2.

Sensory neurons

3.

Integration

4.

motor neurons

5.

effector