WorksheetsHealth - Unit 2: Human Body Systems
Total questions: 28
Worksheet time: 14mins
Which three main parts make up the circulatory system?
Lungs, windpipe, and diaphragm
Heart, blood, and vessels
Brain, nerves, and spinal cord
What is the primary job of the heart?
It brings fresh air into the body
It stores memories and numbers
It pushes blood all through your body
What does the blood carry to every part of the body?
Only waste and "trash"
Oxygen and nutrients
Carbon dioxide and germs
How many minutes a day should you move your body to give your heart a workout?
15 minutes
60 minutes
5 hours
The respiratory system acts like a giant air pump to bring in which substance that your blood needs?
Oxygen (fresh air)
Carbon dioxide (used air)
Nutrients (food energy)
What is the name of the strong tube in your throat that carries air down to your lungs?
Windpipe (Trachea)
Esophagus
Spinal Cord
Which flat muscle under your lungs moves up and down to help pull air in and push it out?
The heart
The diaphragm
The triceps
Why is it important to “Sit Up Tall” for your respiratory health?
It helps your heart pump faster
It gives your lungs more room to fill with air
It keeps germs away from your lungs
Which type of muscles work all by themselves without you thinking about it, such as the heart?
Voluntary muscles
Involuntary muscles
Tendon muscles
What is the job of the tendons?
They soak up nutrients from food
They tie your muscles to your bones so they can pull them
They send messages to the brain
Why do you feel hot after running?
Your lungs are pushing out used air
Your muscles get warm when you move them
Your heart is taking a break
Which type of food acts like building blocks to fix and grow your muscles?
Protein (chicken, beans, eggs)
Calcium (milk, yogurt)
Fiber (apples, carrots)
Which part of the skeletal system acts like a built-in helmet for your brain?
Skull
Ribs
Spine
What do the "factories" inside your bones produce for your body?
New blood
Fresh oxygen
Muscle tissue
What are the places where bone pieces meet, like elbows and knees, called?
Tendons
Joints
Vessels
Which mineral found in "bone foods" like milk and yogurt makes your skeleton tough?
Calcium
Protein
Vitamin C
The digestive system is a special path that breaks food into tiny pieces for what purpose?
To help you breathe better
To protect your brain from germs
So your body can use it for energy
Which part of the digestive system is a long tube that moves food from your throat to your stomach?
Windpipe
Esophagus
Intestines
What is the job of the stomach?
It mashes food into a liquid “soup”
It grinds food with teeth
It soaks up all the nutrients
How do foods like apples, beans, and carrots help the intestines?
They provide calcium for the bones
They act like a broom to sweep the intestines clean
They help the brain send messages faster
What is the largest organ of your body?
The heart
The brain
The skin
The integumentary system is composed of the skin, hair, and what other part?
Nails
Muscles
Bones
How does your skin act as a “thermostat” when you are too hot?
It makes goosebumps to keep heat in
It makes sweat to cool you down
It sends messages to your legs to run
What is the primary job of your nails?
To protect your skin from the sun
To help keep your head warm
To protect the ends of your fingers and toes
What are the three main parts of the nervous system?
Skin, hair, and nails
Brain, spinal cord, and nerves
Heart, blood, and vessels
Which part of the nervous system is a thick bundle of nerves that acts as the “highway” for messages?
The skull
The esophagus
The spinal cord
What is the job of the nerves?
To mash food into liquid
To tell the brain how things feel, smell, or look
To protect the body from the sun
How many hours of sleep does your brain need to recharge its batteries and organize memories?
5-6 hours
20-24 hours
9-10 hours
