Which type of blood vessel takes blood from cells back to the heart?
What is a vein
100
Around the wall of each air sac in the lungs is a web of?
What is capillaries
100
When does digestion begin?
What is chewing
100
This system removes waste from the body
What is the urinary system
100
A tube that carries food to your stomach is
What is the esophagus
200
This part of the heart is located at the top and squeezes blood into the left ventricle
What is left atrium
200
When you hold your breath, your brain sends a message to the diaphragm and rib muscles telling them to breathe. Why is this message sent from the brain?
What is carbon dioxide builds up in the blood
200
How does the food move through the esophagus?
When rings of muscles squeeze food down the mucus-lined esophagus
200
What tasks do the kidneys perform? (Hint: there are 3 tasks)
What are clean the blood, regulate the level of salt in the blood, and control the level of water in the blood
200
A pair of organs that remove waste from your blood
What is kidneys.
300
blood vessels that take blood from cells back to the heart
What is vein
300
The tube that carries air from the larynx to the lungs
What is trachea
300
From the stomach where does the digested food go?
What is the small intestine.
300
Which organ stores a mix of wastes and water until the mix of wastes and watch is ready to leave the body?
What is bladder
300
What is the liquid in the mouth that has chemicals that digest food
What is saliva
400
Flaps that act like doors to keep blood flowing in one direction
What is valve
400
dome-shaped muscle that forms the bottom of the chest area
What is diaphragm
400
What is the role of villi in the small intestine?
Provide more surface area to absorb food
400
About what size is a kidney?
What is the size of a fist
400
What are the tiny finger-shaped structures that give the small intestine more surface area to absorb food
What is villi
500
Located at the bottom of the heart and pumps oxygen-rich blood away from the heart into your body's largest artery.
What is left ventricle.
500
Tubes in the lungs that branch into smaller and smaller tubes
What is bronchioles
500
Which organs send chemicals to the small intestine to help digest food?
What are the pancreas and liver
500
What 3 things can doctors do if someone's kidneys aren't working properly?
What are transplant, dialysis, or remove
500
What are the tiny thin-walled pouches in the lungs