Human Machine - Mystery Science Unit Assessment

Front

The frame or structure of our body, like steel beams in a building, is the ______________.

Back

skeleton

Front

The "moving places" connecting bones are called ____________.

Back

joints

Front

Strings attaching muscles to bones in the body.

Back

tendons

Front

To move body parts, we have __________ that attach to tendons to move bones.

Back

muscles

Front

Main reasons for blindness:

Back

damage to the retina or cornea lens

Front

Blurry vision and glasses are due to:

Back

the retina being too close or too far from the pupil.

Front

The retina is attached to a "cord" called a ________________.

Back

nerve

Front

When the room gets dark, your pupils get ______________ to let in more _____________.

Back

big; light

Front

Red-eye effect in flash photography occurs because:

Back

the blood vessels reflect the light

Front

Nocturnal animals see better in the dark because their pupils get larger.

Back

their pupils get larger