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The Human Eye How You See

2 imagenes, 8 preguntas, 1 definicion, 1 dato, 1 encuesta sobre The Human Eye How You See en ARTi.

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How the human eye sees

Imágenes

teacher

The lens and its flexible focus trick

teacher The crystalline lens changes its shape dynamically to focus on objects at varying distances, a process called accommodation.

teacher

The iris and its colorful muscular dance

teacher The iris uses two tiny muscles to adjust the pupil's size, controlling light entry like a camera's aperture.

Fun Facts

teacher

Fun Fact

Eye muscles: The muscles that focus your eyes move about 100,000 times a day, which is the equivalent of walking 50 miles for your leg muscles.

Quizzes

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Quiz

Which muscle-controlled opening in the human eye regulates the amount of light entering?

teacher

Quiz

Which part of the human eye determines its color and controls pupil size?

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Quiz

What percentage of the human eye's focusing power is provided by the cornea?

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Quiz

What is the biological term for the human eye's lens changing shape to focus?

teacher

Quiz

How many times do the focusing muscles of the human eye move on average each day?

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Quiz

What clear, gel-like substance fills the large rear chamber of the human eye?

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Quiz

Which fluid is constantly produced and drained in the front chamber of the human eye?

teacher

Quiz

What is the tough, white outer protective layer of the human eyeball called?

Glosario

teacher

Glossary

cornea (noun)
The transparent outer layer at the front of the eye that covers the iris and pupil. In 1905, surgeon Eduard Zirm performed the first successful human transplant of this protective tissue.

Gossip

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Gossip

Which eye color do you find most striking?