Unit 3: Chapters 4-7 Quiz

What do you call the place where bones come together?

• muscles

• a play date

• a joint

• a tendon

The pupil is always black, but sometimes it changes _______.

• temperature

• size

• color

• shape

Why was Achilles’s heel vulnerable, or, in danger?

• It wasn’t dipped in the river.

• It was cursed.

• It was already broken once.

• It was very small.

What do nerves send to the brain?

• blood

• messages

• nutrients

• water

What is a concussion?

• a brain bruise

• a broken bone

• a pulled muscle

• inability to move arms or legs

What is a ligament?

• a tissue that connects one bone with another

• a muscle you can control

• the joint of a bone

• vertebrates in the spinal column

About how many nerves are in your body?

• a million

• a billion

• 200 thousand

• 650

What is something your body does without even thinking about it?

• scream

• send dendrites

• a sleepwalk

• a reflex

The spinal cord leads to...

• the center of your brain

• your appendages

• a voluntary muscle

• your scapula

What do scientists use to see how parts of the brain work?

• brain surgery

• x-rays

• microscopes

• PET scans