Biology U5L8 Senses

Front 1

sensory receptors located on the tongue that result in taste perception.

Back 1

taste buds

Front 2

thin layer of tissue found at the back of the eye made up of light receptors and sensory neurons.

Back 2

retina

Front 3

receptor cells in the retina that are adapted for vision in dim light; also help detect shape and movement.

Back 3

rod

Front 4

receptor cells in the retina adapted for sharp vision in bright light and color detection.

Back 4

cone

Front 5

snail-shaped structure in the inner ear containing fluid and hairs; produces electrical impulses that the brain interprets as sound.

Back 5

cochlea

Front 6

structures in the inner ear containing fluid and hairs that help the body maintain balance.

Back 6

semicircular canals

Front 7

Summarize the different types of messages the senses receive.

Back 7

The eyes respond to light. The ears respond to sound. Touch receptors respond to mechanical stimulation. The tongue and nose respond to chemicals

Front 8

When you have a cold, why is it difficult to taste food?

Back 8

The tasting of food involves both the sense of smell and the sense of taste. When your nose is stuffed up, therefore, you can't taste as well.

Front 9

Explain how your eyes detect light and images.

Back 9

Light stimulates the rod or cone cells in the retina, which transmit a signal to the brain through the optic nerve

Front 10

List the different types of receptors that are found in the skin.

Back 10

touch, temperature, pressure, and pain

Front 11

Why might an ear infection lead to problems with balance?

Back 11

Swelling associated with an ear infection could cause fluid in the ear to put pressure on the semicircular canals and cause the hairs in the canals to signal a false sense of balance in the brain.

Front 12

List the sequence of structures through which sound waves pass to reach the auditory nerve.

Back 12

outer ear, eardrum, malleus, incus, and stapes, fluid of cochlea, hairs of cochlea, auditory nerve to the brain