Digestion qz 2 Flashcards
Lipids are absorbed by _______
diffusion
Large intestine functions (4)
Absorption of water
Eliminates indigestible food from the body as feces
Does not participate in digestion of food
Goblet cells produce mucus to act as a lubricant
saclike first part of the large intestine
Cecum
Accumulation of lymphatic tissue that sometimes becomes inflamed (appendicitis)
Hangs from the cecum
Appendix
colon
S-shaped sigmoidal
Ascending
Transverse
Descending
wt does the Large intestine produce and release?
Produce some vitamin K (help blood clot and bone production and B (several uses)
Release gases
Propulsion in the Large Intestine (3)
Sluggish peristalsis
Mass movements (Slow, powerful movements;
Occur three to four times per day)
Presence of faeces in the rectum causes a defecation reflex
Produces a wide spectrum of digestive enzymes that break down all categories of food
Enzymes are secreted into the duodenum
Pancreas
Largest gland in the body
Connected to the gall bladder via the common hepatic duct
liver
Produced by cells in the liver
Bile
Sac found in hollow fossa of liver
Stores bile from the liver by way of the cystic duct
Bile is introduced into the duodenum in the presence of fatty food
Gall Bladder
Gallstones can cause ________
blockages
moving foods from one region of the digestive system to another
Propulsion
alternating waves of contraction
Peristalsis
moving materials back and forth to aid in mixing
Segmentation
Carbohydrates are broken to simple _________,______
Proteins are broken to _______
Fats are broken to ___________and _________
sugars, glucose
amino acids
fatty acids and alcohols
End products of digestion are absorbed in the blood or lymph
Food must enter mucosal cells and then into blood or lymph capillaries
Absorption
Elimination of indigestible substances as feces
Defecation
To break down Proteins in the stomach we use ________,________,_________
pepsin, renin, trypsin
stomach produces very little lipase excess fats are broken down by ________
bile
Lipids are broken down by lipase and bile into
Glycerol and fatty acids
Carbohydrates is broken down by salivary amylase into _________
and _________ is broken down by pancreatic amylase into _______
Maltose
Glucose