Q4. Personal Care and Healthy Behaviors

The largest organ of the human body is the:

• liver
• skin
• lungs
• heart

The outermost and thinnest layer of the skin is the:

• surface
• epidermis
• subcutaneous
• dermis

Which part of the eye is the place where images are inverted?  

• Retina
• Cornea
• Lens
• Iris

Which part of the eye opens in dark places and closes in bright places?  

• Cornea
• Retina
• Pupil
• Lens

Which part of the ear is shaped like a snail shell?

• eardrum
• auditory nerve
• cochlea
• anvil

What happens to the eardrum when sound hits, causing transmission of sound to the inner ear?

• it opens
• it grows hair
• it refracts the sound
• it vibrates

Which part of the ear acts as a funnel?

• middle ear
• outer ear
• inner ear
• cochlea

A person who is farsighted can be assisted by_________________.

• lenses that are tinted lenses
• concave lenses that make light rays focus on the cornea
• convex lenses that make light rays converge farther toward the retina
• surgery that enlarges the pupil

Identify the structure labelled I

• Dentine

• Enamel

• Blood Vessels

• Nerve

Identify the structure labelled D

• Dentine

• Root Canal

• Gum

• Enamel