Y10 - Eye revision iGCSE Biology

When an object moves close to the eye, which muscle contracts?

• ciliary

• suspensory

• circular

• radial

When an object moves close to the eye, which ligament slackens?

• ciliary

• suspensory

• circular

• radial

When an object moves far away to the eye, which muscle relaxes?

• ciliary

• suspensory

• circular

• radial

When an object moves far away to the eye, which ligament becomes taught?

• ciliary

• suspensory

• circular

• radial

What happens to the shape of the lens when an object is close?

• fatter - refract more

• thinner - refract less

What happens to the shape of the lens when an object is far away?

• fatter - refract more

• thinner - refract less

Which muscle contracts when in a bright room?

• ciliary

• suspensory

• circular

• radial

Which muscle contracts when in a dark room?

• ciliary

• suspensory

• circular

• radial

Which muscle relaxes when in a bright room?

• ciliary

• suspensory

• circular

• radial

Which muscle relaxes when in a dark room?

• ciliary

• suspensory

• circular

• radial