science - digestive system Flashcards
what does obesity mean
a medical condition in where the body fat is too high so it can affect the health
what does starvation mean
severe long term shortage of energy from food
what does deprived mean
to lack something
what health problems can obesity cause
stroke
high blood pressure
kidney failure
painful joints
difficulty breathing
heart disease
what does malnutrition mean
health condition caused by a insufficient intake of nutrients
what does deficiencies disease mean
illness caused by a lack of certain nutrient
what does indigestion mean
pain of discomfort in the stomach, associated with difficulty in digestion
what is mechanical digestion?
chewing
what is chemical digestion
stomach acids and enzymes
what does carbohydrase do
breaks down carbs into sugar
what does protease do
breaks down protein to amino acids
what does lipase do
breaks down lipids into fatty substances
what is the structure of the digestive system?
mouth
esophagus
liver
stomach
pancreas
small intestine
large intestine
rectum
anus
what is the function of the mouth
where the digestion starts. Teeth break it down then mix it with the enzymes in the saliva
what is the function of the esophagus
thin tube which connects the mouth to the stomach
what is the function of the liver
releases a chemical bile into the intestines. bile breaks down lipids in the food
what is the function of the stomach
a muscular bag which mixed food and drink into acids
what is the function of the pancreas
releases enzymes which breaks down carbohydrates, protein and lipids
what is the function of the small intestine
carbohydrates, protein and lipids digest. nutrients produces are absorbed into the blood
what is the function of the large intestine
foods cant be broken down pass into the large intestine, water/moisture is absorbed into the blood
what is the function of the rectum
any undigested food passes through to the rectum where is it stored at feces
what is the function of the anus
where the feces leave the body
how do u calculate BMI (body mass index)
BMI = wright (kg) / height (m2)
