Unit 4- The intestines Flashcards
what tissue is in the small intestine
circular and longitudinal that carry out peristasis
what is peristalsis
how the muscles contract to move
How many sections does the small intestine have
3 sections
D-udenum
J-ejnum
I-leum
DJ Ivan
what are vili
folds in the small intestine to maximize surface area for digestion and absorption of nutrients into the blood stream
whats in vili
capillaries
lacteal
galnds
microvili- increase surface area
what are the two jobs of small intestne
hydrolosis- use enzymes to chemically break down nurtients
absorbtion- absorb nurtients into blood stream
what are accessory organs
-liver
-gall bladder
-pancreas
what is bile
-yellow-ish green liquid made in liver, stored in gallbladder
what is duodeum
bile duct in the small intestine
where does the last enzyme secretion to break down nurtients occur
pancreas
what does the pancreas secrete
sodium bicarbonate to neutralize the acid chyme (pH 2 –> pH 9)
what factors affect enzyme effectiveness
high temp
pH in stomach is acidic
what are the 3 sections of the large intestine
ascending
transverse
descending
what does the ascending colon being with
caecum helps to slow does transport
