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Here, gastric juices make the food into a thick liquid
Stomach
Digestion takes place mainly in the _______ but some nutrients are digested in the ______ and _______.
small intestine, mouth & stomach
Some things are not digested because they are small enough to pass into the blood without being digested. What are they?
Water, minerals and vitamins
What is the liquid in the mouth that helps to break down food?
Saliva
There are lots of blood vessels. Nutrients pass into the blood here.
Small intestine.
What is the purpose of the excretory system?
To remove excess water and other waste products from our body.
This organ filters the blood, and excess water and waste products are dropped off and made into urine.
Kidneys
The urine goes down these TUBES to the bladder.
Ureters
The urine leaves the body through this tube.
Urethra
Name the parts of the circulatory system
Heart and blood vessels
Each time the heart pumps it is called a __________.
Heartbeat. Followup: what is a "normal" heart beat?
_________ are blood vessels that RETURN blood to the heart from the rest of the body.
Veins
________ are blood vessels that carry blood from the heart to the rest of the body.
Arteries
Blood is pumped through the heart to the rest of the body. What does it deliver and what does it pick up?
Delivers oxygen and picks up carbon dioxide.
There are where oxygen and nutrients are exchanged for carbon dioxide and other waste products.
The capillaries.
The nose has two ______ that have lots of little hairs and are narrow at the back. What do we do when a foreign object enters our nose?
nostrils. we sneeze!
