digestive system and excretory system notes
DESCRIPTION
Digestive System and Excretory system Notes. The Digestive System. The Digestive System What does the Digestive System do? Your Digestive system digests food to use as energy for your body There are seven main organs that make up the digestive system are The Oral Cavity The Esophagus - PowerPoint PPT PresentationTRANSCRIPT
DIGESTIVE SYSTEM AND
EXCRETORY SYSTEM NOTES
THE DIGESTIVE SYSTEM The Digestive System
What does the Digestive System do? Your Digestive system digests food to use as energy for
your body There are seven main organs that make up
the digestive system areThe Oral CavityThe EsophagusThe Stomach
PARTS OF THE DIGESTIVE SYSTEM CONTINUED
The Small IntestineThe Large Intestine
—also called the colon—The RectumThe Anus
Inside mouth, stomach, and smallintestine there is a lining called themucosa this lining produces juiceswhich help break down food
WHY IS THE DIGESTIVE SYSTEM IMPORTANT? Food in not the form of energy the body
can use These foods must be changed into a
form of energy that can be used by the body
This converted energy is then absorbed by the blood and carried through out the body
DESCRIPTION OF EACH ORGAN The Oral Cavity
Also known as the mouth The Oral Cavity is were the food is chewed Saliva is secreted from the mouth to help break
down the food The Esophagus
A Muscular tube in the throat to the stomach The Stomach
Stores and digests food The Small Intestine
Absorbs food as nutrients
DESCRIPTION OF EACH ORGAN Large Intestine
Stores food and wastes and prepares the food to be egested
RectumStores solid feces
Anus Feces pass through this part and gets
egested out of the body
POSSIBLE INJURIES TO SYSTEM Eating improper foods Eating too much (Bulimic) Eating too little (Anorexic) Eating too fast or too much Ripping your stomach slightly
THINGS THAT CAN HELP THE SYSTEM Eating healthy foods, such as fiber
Do not eat too much meat products Lots of water Chew food thoroughly Eat foods that have enzymes that can
help your bodyApple Vinegar
EXCRETORY SYSTEM
The function of the ExcretorySystem is ridding the body of waste.
EXCRETORY SYSTEMTHE REMOVAL OF SOMETHING IS EXCRETION.
The main organs of the excretory system are the bladder, kidneys, lungs, liver and skin.
The excretory system is like the sewage system because the excretory system gets rid of waste that the body does not need. The body also gets rid of natural gasses which can be fatal if not released from the body.
KIDNEYS One of the main jobs of the kidneys is to
filter the waste out of the blood. The kidneys filter that blood as many as
400 times a day! More than 1 million tiny filters inside the kidneys (nephrons) remove the waste.
THE URINARY SYSTEM the kidneys: filters that take the waste
out of the blood and make urine the ureters: tubes that carry the urine to
the bladder the bladder: a bag that collects the
urine the urethra: a tube that carries the urine
out of the body
LIVER The liver acts as a filter for the blood. It cleans
out toxic waste, poisons, and acid in the blood.
SKIN The skin plays a major
role in excretion. It helps the body get rid of excess water, salts, and waste such as urea. The urea is a nitrogen waste that is filtered out of the blood
LUNGS
our lungs also undergo excretion by removing carbon dioxide from the body