Digestive system Exam With Correct
Answers Graded A+
Goals of digestive system
1. Ingestion - take in food
2.Digestion:Break down the food
3.Absorption: absorb nutrients
4. Elimination: eliminate waste
ingestion (stage 1)
Chewing with teeth, saliva wetting, tongue pushing food back to muscular esophagus,
which forces food down to stomach
Epiglottis
blocks food from entering trachea
uvula
blocks food from going up the nose
Peristalsis
muscles that keep food moving along in one direction through the digestive system
stomach
continues the mechanical and chemical (with enzymes) digestion of food
enzymes
help break down food chemically with acid (in stomach and saliva)
Stage 3-Absorption
small intestine, lined with villi, continues to break down food w/enzymes and delivers
nutrients to blood
pancreas function
regulates blood sugar
Gallbladder function
stores bile
kidney function
filter blood, produces urine
Appendix function
stores good bacteria
Villi
Tiny structures in small intestine with large surface area through which digested food is
absorbed
stage 4-Elimination
Elimination by large intestine, rectum
Bladder
stores/excretes urine
stool
excreted poo
Answers Graded A+
Goals of digestive system
1. Ingestion - take in food
2.Digestion:Break down the food
3.Absorption: absorb nutrients
4. Elimination: eliminate waste
ingestion (stage 1)
Chewing with teeth, saliva wetting, tongue pushing food back to muscular esophagus,
which forces food down to stomach
Epiglottis
blocks food from entering trachea
uvula
blocks food from going up the nose
Peristalsis
muscles that keep food moving along in one direction through the digestive system
stomach
continues the mechanical and chemical (with enzymes) digestion of food
enzymes
help break down food chemically with acid (in stomach and saliva)
Stage 3-Absorption
small intestine, lined with villi, continues to break down food w/enzymes and delivers
nutrients to blood
pancreas function
regulates blood sugar
Gallbladder function
stores bile
kidney function
filter blood, produces urine
Appendix function
stores good bacteria
Villi
Tiny structures in small intestine with large surface area through which digested food is
absorbed
stage 4-Elimination
Elimination by large intestine, rectum
Bladder
stores/excretes urine
stool
excreted poo
