Human Senses Quiz

What part of the nervous system controls involuntary actions?

• Brain

• Spinal cord

• Peripheral nervous system

• Central nervous system

What type of cells in the retina are sensitive to light intensity?

• Optic cells

• Cone cells

• Rod cells

• Photoreceptors

Which structure in the ear amplifies sound vibrations?

• Auditory nerve

• Ossicles

• Eardrum

• Cochlea

What is the function of the ciliary muscles in the eye?

• Change the thickness of the lens

• Control the size of the pupil

• Focus light on the retina

• Protect the eye

Which part of the ear is responsible for maintaining balance?

• Cochlea

• Auditory nerve

• Eardrum

• Semicircular canals

What is the main function of the olfactory cells in the nose?

• Detect smell

• Detect taste

• Detect sound

• Detect light

Which taste is NOT one of the five basic tastes?

• Umami

• Spicy

• Sour

• Sweet

What part of the skin contains the receptors for touch?

• Hypodermis

• Dermis

• Subcutaneous layer

• Epidermis

What is the role of the optic nerve?

• Carries impulses from the retina to the brain

• Connects the eye to the ear

• Focuses light on the retina

• Controls the size of the pupil

What is the function of the aqueous humour?

• Fills the space between cornea and lens

• Helps maintain the shape of the eyeball

• Fills the space behind the lens

• Protects the cornea