nervous system grade 5

The dark circle, in front of the eyeball ,is _______________

• Pupil

• Iris

• Cornea

• Lens

The nerve which connects eye and brain is

• Auditory nerve

• Olfactory nerve

• Optic nerve

• None

The largest sense organ of our body is

• Eye

• Nose

• Skin

• Ear

The screen on which the images are formed in the eye is

• pupil

• iris

• eyelids

• retina

The function of inner ear is to

• hear

• direct the sound

• dance

• smell

The __________________ on tongue are sensitive to different tastes.

Which of the following controls our reflex actions?

• Brain

• Spinal cord

• Both 1 and 2

• None of these

The nervous system has thin, thread-like tubes that run all around the body. These are called

• veins

• nerves

• vessels

• spinal cord

Which of the following is a thick cord of nerve tissue that extends down from the brain stem?

• Spinal cord

• Backbone

• Both 1 and 2

• None of these

Abhi accidentally touched a hot metal and spontaneously withdraw his hand from the metal. Why did he react spontaneously?

• Due to reflex action

• Due to the brightness and heaviness of the metal