what is the first organ of digestive system?
mouth
where does food go after mouth?
esophagus
food takes ___ seconds to pass down the esophagus and into the stomach
5 to 10 seconds
what does salivary glands do?
3 pairs, secrete salivary amylase (an enzyme that breaks down carbohydrates)
What does liver do?
produces bile, urea, amonia.
What does gall bladder do?
stores bile
food spends ___ hours being partially digested in the stomach
2 to 6 hours
What does pancreas do?
produces insulin, lipase, bicarbonate and lipase (lipids)
what does large intestine do?
also called colon, 1.5m in length. in 12-24 hours any undigested material by stomach passes through the large intestine and H20 is reabsorbed.
what does small intestine do?
final digestion and nutrient absorption. food stays in small intestine for about 5 to 6 hours
what is an appendix?
lymphoid tissue. it makes a minor contribution to defense
what does kidney do?
contains nephrons, removes waste from the blood
H20, urea, salts → urine
what does ureter do?
transports urine to the bladder
what does bladder do?
stores urine
what does urethra do?
transports urine out of the body