Digestion Starts
Digestion Ends
Breathing Basics
Exchanging Gases
Anonymous
100
When does your digestive system begin to work?
Right when you see/smell food, saliva starts to form
100
How long is the small intestine?
20 ft long
100
What happens to the dust that enters our nose?
it gets stopped by nose hairs, and mucus lining respiratory system
100
What is the larynx?
a voice box to speak, it vibrates when we exhale
100
Why can you not hold your breath longer than a minute after 1 minute?
because a lot of carbon dioxide (waste) is building up and needs to be released
200
How long is the digestive system?
30 ft long
200
Why is it called "small intestine"?
because it is narrower in width
200
What happens to your ribs and diaphragm when you inhale?
Ribs tight, diaphragm down
200
What is the definition of air sac? where is it?
Where oxygen moves into blood, attached to bronchioles
200
What is the process that happens in the esophagus and stomach to push food down and mix it together?
PERISTALISIS
300
What gland produces saliva and How much saliva do you produce a day (think what I had in beaker)?
salivary gland, 1.5 L everyday
300
What is the enzyme produced in the small intestine and what does it do?
Lactase breaks sugar
300
Why is our breathing rate lower when we sit than run in place?
because sitting doesn't require so much energy, but running needs more energy and more exygen
300
What 2 things destroy air sacs?
tobacco smoke, and air pollutants
300
What can we eat to "clean" our digestive system because it doesn't break down?
Fiber
400
What is the enzyme the salivary gland produces, what does it do?
ptayalin breaks starch to simple sugar
400
What organ produces bile and why? Where does it go first then after?
the Liver to help break down fats, gives it to gallbladder then to small intestine
400
What is trachea made from? Why?
cartilage to keep shape so it doesn't collapse
400
The oxygen that goes in goes where after the bloodstream? what leaves the cell the exits the body?
into cells to make energy, carbon dioxide
400
There are three things that leave the stomach in order, what are they?
1. sugar/starch 2. protein 3. Fats (stay longest)
500
What happens when we swallow food so we don't choke? If we choke what procedure should be done?
the opening to nose and trachea close so food doesn't go in. If we choke, we need heimlich maneuver.
500
How are nutrients absorbed from the small intestine into the bloodstream?
By villi
500
What happens to ribs/diaphragm when you exhale?
ribs expand, diaphragm up
500
What is the order of where air goes from #1 to #5
1. nose/mouth 2. larynx 3. trachea 4. bronchial tubes 5. air sacs (in lungs)
500
How come we don't need a stomach to survive?
because it is mainly for storing, not digestion
M
e
n
u