Eye Spy
This is the clear "windshield" at the front of the eye that helps focus light.
What is the CORNEA
The thin, tough outer wrapper that protects the kidney like shrink-wrap.
What is the RENAL CAPSULE
The two upper chambers of the heart that simply catch incoming blood.
What is the ATRIUM
Type of blood vessel that carries blood AWAY from the heart.
That hook-and-loop stuff on your shoes — invented after a guy's dog came home covered in burrs.
What is VELCRO
This is the tough, white outer layer that gives the eye its shape and protection.
What is the SCLERA
The notch where blood vessels, nerves, and the ureter enter and exit the kidney.
What is the HILIUM
The two lower chambers with thick muscular walls — the real pumpers.
What are the VENTRICLES
Type of blood vessel that carries blood BACK TO the heart.
A Japanese bullet train's nose was reshaped to mimic the beak of THIS bird to cut down a sonic-boom problem in tunnels.
What is the KINGFISHER
This colored ring that shrinks and expands to control the pupil.
What is the IRIS
The cone-shaped structures that carry urine from the outer kidney toward the renal pelvis.
What are the RENAL PYRAMIDS
The tough outer sac that anchors the heart and keeps it from rubbing against surrounding structures.
What is the PERICARDIUM
The tiniest vessels — so thin that oxygen, nutrients, and waste trade places right through their walls.
The bumpy edges on the fins of THIS giant ocean mammal inspired more efficient wind turbine blades.
What is the HUMPBACK WHALE
The thin layer at the back of the eye that detects light and converts it into signals for the brain.
What is the RETNIA
The inner part of the kidney — the region that houses those cone-shaped pyramids.
What is the RENAL MEDULLA
The thick middle layer of the heart wall — the muscle that's actually doing the pumping.
What is the MYOCARDIUM
The ONE artery that carries deoxygenated blood — it runs from the heart to the lungs.
Self-cleaning paints and fabrics copy the water-repellent bumpy surface of THIS flower's leaves (the "lotus effect").
What is the LOTUS FLOWER
The spot where the optic nerve exits the retina — no light-detecting cells live here, which is why it's called this.
What is the BLIND SPOT
The hollow space inside the kidney that cradles the pelvis, blood vessels, and nerves.
What is the RENAL SINUS
The valve between the LEFT atrium and the LEFT ventricle.
What is the MITRAL VALVE
One-way flappy structures in your leg veins that keep blood from pooling backward.
What are the VALVES
Swimsuits and hospital surfaces got a boost from copying the microscopic texture of THIS predator's skin, which keeps bacteria from sticking.
What is SHARKSKIN