Digestive system
Where does the first step of the digestive system take place?
Mouth
Saliva is 99% what?
Water
What structures of your mouth helps with mechanical digestion?
Teeth
This is your largest organ in your body, also part of the excretory system
skin
excretion means to do what
get rid of or eliminate
What transports food from the mouth to the stomach?
esophagus
What is mechanical digestion?
Breaking down of materials by breaking, tearing, crushing and mashing
What does the liver secrete to aid digestion? Hint: a yellow fluid
bile
true/false: an organ is only part of one organ system in the body?
false, some organs have roles in more than one organ system
how do the lungs excrete waste?
release carbon dioxide
What is the movement or contraction of the muscles around the esophagus to allow food to pass through?
Peristalsis
What is chemical digestion?
The breaking down of food into smaller pieces by chemicals like saliva or enzymes
What is the main function of the large intestines?
Absorbs water, mineral and nutrients and eliminates excess waste
Nephrons are in this organ
Kidney
How does skin excrete waste?
sweating
Where does chemical digestion mainly take place?
Stomach
Your body produces this in the digestive tract to soften food and coats organs inside.
Mucus
What is the name for a chemical that speeds up a chemical reaction in the body.
Enzyme
These are filtering structures that produce urine
nephrons
if fluid, such as water, intake is decreased, then urine output will do what?
decrease, go down
The digestive system break food down into a usable form of energy to fuel what cellular process?
Cellular respiration
What are the structures in the small intestine that absorb nutrients
Villi
Which organ releases enzymes to finish breakdown of food for nutrient absorption?
small intestine
sweating and goosebumps are an example of this characteristic of life
response to stimuli
How many times a day do the kidneys filter the blood in our body
20-25 times