Excretory System 1
You go to the bathroom to get rid of this liquid waste.
urine
These two bean-shaped organs are part of the excretory system.
kidneys
This is the hard outer layer of the tooth that protects it from damage.
enamel
This organ transports food from the mouth to the stomach
Oesophagus
The small intestine is approximately __ m long
The large intestine is approximately __ m long
5-7m
1.5m
This organ stores urine until you are ready to release it.
bladder
This waste product gives urine its yellow color.
urea
These help anchor the tooth in place and extend into the jawbone.
roots
What is mechanical digestion?
The physical break down of food by tearing, crushing and mashing
What nutrient serves as our body's main source of energy?
Carbohydrates (fruits, vegetables, grains, bread)
What is the name of the final tube where urine exits the body?
urethra
Name one function of the excretory system besides removing waste.
balancing water or salt levels / maintaining homeostasis
What digestion takes place in the mouth?
Chemical and Mechanical
What other body system works closely with the digestive system to absorb the nutrients and send them throughout the body?
Circulatory system
Name the 3 accessory organs that aid in digestion.
BONUS POINTS - name a 4th that seems to no longer 'serve any purpose'
Liver, Pancreas, Gallbladder
Appendix
What is the name of the tiny filtering units inside each kidney?
nephrons
Why is it important for the excretory system to work properly?
To prevent the buildup of harmful waste that can damage the body
What is in saliva that begins the breakdown of carbohydrates?
Amylase
Our stomach holds _____ acid, that helps digest food.
Hydrochloric acid
What is the name for a chemical that speeds up a chemical reaction in the body. Examples of this are amylase or pepsin
Enzymes
What are two ways we can take care of our excretory system?
Drinking water, eating healthy, not holding in urine for too long, and avoiding harmful substances
What are the 5 main organs of the excretory system?
Skin
Lungs
Liver
L.intestine
Kidneys
This is the visible part of the tooth above the gum line.
These tiny living organisms feed on leftover food in your mouth and produce acid that causes cavities.
the crown
bacteria
What are the small structures in the small intestine that help absorb nutrients?
Villi
What is the movement or contraction of the muscles around the esophagus to allow food to pass through?
Peristalsis