Sight, taste, smell and touch

What is the first part of the eye that light passes through?

• Iris

• Retina

• Cornea

• • Pupil

Which part of the eye controls the amount of light that enters?

• Retina

• Iris

• Lens

• Optic nerve

What nerve transmits visual information from the eye to the brain?

• Olfactory nerve

• Optic nerve

• Sensory nerve

• Motor nerve

Where do odors enter for the sense of smell to begin?

• Through the mouth

• Through the eyes

• Through the nostrils

• Through the ears

What detects odors in the nose?

• Taste buds

• Olfactory receptors

• Skin receptors

• Pain receptors

How many basic tastes can receptor cells detect, and can you name them?

• Three: sweet, sour, spicy

• Five: sweet, salty, bitter, sour, umami

• Four: sweet, bitter, salty, sour

• Six: sweet, sour, spicy, salty, bitter, umami

What are the three layers of the skin, starting from the top to the bottom of the skin.

• Dermis, hypodermis, epidermis

• Hypodermis, epidermis, dermis

• Epidermis, dermis, hypodermis

• Hypodermis, dermis, epidermis

What types of sensations do touch receptors detect?

• Light and color

• Smell and taste

• Temperature, pressure and pain

• Sound and vibration

How do sound waves reach the ear canal?

• • Through the nose

• • Through the ear canal

• • Through the eyes

• • Through the throat

What function does the ear play in helping to maintain balance?

• • It detects temperature changes

• • It detects sound waves

• • It helps with movement detection through semi-circular canals

• • It improves vision