ANATOMY EXAM 3 PART 2: DIGESTIVE SYSTEM

stomach

muscular sac that stores food

liver

body’s largest gland, secretes bile

gallbladder

stores and concentrates bile by absorbing water and electrolytes

pancreas

endocrine portion: secretes insulin and glucagon
exocrine portion: secretes pancreatic juice

small and large intestines

small: site of chemical digestion and nutrient absorption, longest in digestive tract

large: forms feces before elimination through rectum and anus

rectum

portion ending at anal canal

gastric juice

mix of water, HCl, and pepsin

where mechanical and chemical digestion takes place

mechanical: mouth, stomach, small intestine

chemical: salivary glands, stomach, pancreas, and small intestine

role of mucus

binds and lubricates food, aids in swallowing

how digestive and respiratory system share an organ

share the pharynx

how proteins are broken down and what they turn into

broken down by digestion turning into amino acids

mouth to anus

mouth, pharynx, esophagus, stomach, small intestine, large intestine, anus

stomach pH

1.5-3.5

what form of glucose is stored in the liver

glycogen

hormones that stimulate stomach acid

gastrin