Understanding Human Senses

What part of the eye is responsible for controlling the amount of light that enters?

• Iris

• Lens

• Cornea

• Retina

How does the lens of the eye adjust to focus on objects at different distances?

• By changing its position

• By changing its shape

• By changing its size

• By changing its color

What is the primary function of the olfactory epithelium in the nose?

• To filter dust and germs

• To warm and moisten the air

• To recognize smells

• To produce mucus

Which part of the ear is responsible for converting sound vibrations into liquid vibrations?

• Eardrum

• Pinna

• Anvil

• Cochlea

What role do the ossicles play in the auditory system?

• They amplify sound vibrations

• They convert sound into electrical signals

• They detect sound frequencies

• They produce sound waves

What is the primary function of taste buds on the tongue?

• To aid in speech

• To detect different flavors

• To help in digestion

• To produce saliva

How does the tongue assist in the process of digestion?

• By producing digestive enzymes

• By absorbing nutrients

• By moving food around the mouth

• By breaking down food particles

What is the main function of melanin in the skin?

• To provide a waterproof barrier

• To regulate body temperature

• To produce sweat

• To protect against sunrays

Which layer of the skin is primarily responsible for storing fat?

• Epidermis

• Dermis

• Hypodermis

• Subcutaneous tissue

What is the role of sweat glands in the skin?

• To provide a waterproof barrier

• To protect against microbes

• To regulate body temperature

• To produce melanin