muscular system
nervous system
circulatory system
skeletal system
riddles
100

 the main function of the muscular system

what is movement 

100

the main function of the nervous system

 what is sending messages from various parts of your body to your brain

100

the main function of the circular system 

what is delivering oxygen and nutrients to cells and takes away waste

100

 the main function of the skeletal system

what is giving your body its shape and providing protection for your organs

100

I’m tall when I’m young, and I’m short when I’m old. What am I?

what is a candle

200

how many muscles an organ system has

what is 640

200

the amount of neurons that the brain has

what is 100 billion 

200

the superior vena returns blood from the lower or upper part of the body

what is the upper body

200

the amount of bones there are in the adult human body 

what is having 206 bones 

200

What's a question can you never answer yes to?

what is asking "are you asleep yet?"

300

what its called when you think about doing something

 what is involuntary thinking

300

3 things your body dose without you having to think about it

what is breathing, having your heart beat and blinking 

300

how big the muscular organ is

what is being about the size of a fist 

300

the amount of bones a baby has

what is having 300 bones

300

 A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

where'd his hair go?

(him's is bald)


400

what its called when you don't think about doing something

what is voluntary thinking

400

that one thing when a doctor hits you knee to see if it jerks

what is checking for reflex health

400

the amount of chambers the heart has

what is having 4 heart chambers

400

2 things that bones store and release 

what are minerals and fat 

400

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

what is being married

500

when your mussels are able to return to there resting shape after stretching

what is having mussels with elasticity 

500

the peripheral nervous system is made up of two main parts

what are the somatic and autonomic parts of the nervous system

500

the red arteries move in one direction 

what is moving away from the heart 

500

the 2 main parts in the muscular system

what is the axial skeleton and the appendicular skeleton

500

A man dies of old age on his 25 birthday. How is this possible?

what is being born on February 29th