Which type of blood cells have a defensive function?
white blood cells
What is letter C?
liver
What are number 5?
arteries
What is letter A?
nasal passages
What is number 5?
ureter
The _____ is a tube that takes air to the lungs.
trachea
nasal passages
diaphragm
Does the digestive system absorb all the nutrients you need?
Yes
What is letter C?
diaphragm
What is letter B?
oesophagus
True or false: The sweat glands do not have an excretory function.
False
Which blood cells transport oxygen?
red blood cells
What does the body do with nutrients it doesn't need?
The body stores the extra nutrients as fat and we gain weight.
During digestion, what happens in the stomach?
Food mixes with gastric juices and transforms into mush.
What type of blood vessel transports blood from the organs to the heart.
veins
What is the purpose of the circulatory system?
It transports nutrients and oxygen to cells in all parts of the body and carries waste substances so they can be expelled.
Explain what happens in the kidneys.
They filter the blood with the nephrons and produce urine.
What substance do the salivary glands produce?
saliva
What are the parts of the urinary tract and what does it do?
Two ureters, urinary bladder, urethra. It transports urine outside the body.
What word do we use when our teeth cut food up into small pieces.
chew
What is number 4?
right atrium
Air enters and leaves the respiratory system though the_____.
nasal passages
trachea
diaphragm
What is number 6?
(urinary) bladder
This is the sac that stores urine.
(urinary) bladder
The _____ separates the lungs from the abdomen.
trachea
diaphragm
nasal passages
In the digestive system, which happens first, digestion or absorption? Explain
Digestion. It breaks food down into nutrients small enough for your body to absorb.