Hearing
The ______ pick up sound waves. The waves travel into the ________.
ear, ear canal
Name the five parts of the eye.
Iris, lens, retina, pupil, cornea
What enters our body through our nostrils?
Odour particles
Name the 3 body parts for taste.
Nerves, taste buds, tongue
What are the 3 layers of the skin?
epidermis, dermis, and hypodermis
When sound waves hit the _______, what happens...?
The sound waves hit the eardrum, which vibrates and causes the three tiny ear bones to move.
Light enters the eye through the _______ and ________.
cornea and pupil
The ________ within the nasal cavity detect the odour particles.
olfactory receptors
What are bumps on the tongue called?
Taste buds
What is the function of the outer layer of the skin?
The epidermis covers and protects our body.
The tiny bones transmit the vibrations to the _______. which turns the sound vibrations into electrical signals.
cochlea
What is the iris? What does it control?
The colored part of the eye. It controls the amount of light entering the eye.
The _________ send electrical signals to the ____________ and from there to the brain.
olfactory receptors, olfactory bulb
What are the five tastes?
sweet, salty, bitter, sour and umami
What 3 things does the dermis contain?
The dermis contains the nerves, glands, and touch receptors.
The auditory nerve takes the electrical signals to the brain. The semi-circular canals are filled with liquid. They detect movement and stop us from losing balance.
The retina meets the optic nerve at the _______. The ________ focuses the light at the back of the eye on the ________.
fovea, lens, retina
Name the 3 body parts for smell.
Olfactory bulb, olfactory receptors, nostrils
What do nerves do (for taste)?
Nerves send the taste information to the brain.
What 2 things can be found in the inner most layer of the skin?
The hypodermis contains fat tissue and sweat glands.
Otitis
What do nerve receptors in the retina do?
They send signals to the brain via the optic nerve.
CHALLENGE
What is an inflammation or infection in the eye called? What does it feel like?
Conjunctivitis. It feels like sand in your eyes.
What do receptor cells do for taste?
Receptor cells in the taste buds can detect the five tates.
What are the 2 functions of touch receptors?