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Digestive & Excretory systen
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Digestive
system
- breaks down food, releases and absorbs nutrients
Process of Digestive system:
1. Ingestion
2. Digestion
3. Absorption
4. Defecation
Mouth
- an organ of the digestive system that is responsible for ingesting, chewing, and mixing of food
Salivary
Amylase
- an enzyme found in saliva; begins the digestion of food
Stomach
- mixes food and gastric juices to form
CHYME
(mixture of food and gastric juices)
Small
intestine
- mixes chyme with digestive juices; absorbs breakdown products
Large intestine
- further breaks down food; absorbs residuals
Liver
- produces
BILE
(emulsifies lipids)
Gallbladder
- stores, concentrates, and releases bile
Pancreas
- produces
digestive
enzymes
Villi
&
microvilli
- increase the small intestine's surface area, improves absorption
Excretory system
- produces waste in the form of urine; excretes waste from the body
Kidneys
- forms urine; regulates blood volume and pH
TRUE
- (true or false) when blood passes through nephrons and is filtered, urine is formed
Bladder
- stores urine
Urethra
- transports urine outside
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