Topic 3, Part 2

Question 1

what is an endoscope?

Answer 1

tube shaped instrument with a lens, light source that can be fitted with a laser to diagnose and/or perfom surgery

Question 2

the small intestine is the most site of what?

Answer 2

digestion and absorption

Question 3

what are the 3 parts of the small intestine?

Answer 3

duodenum, jejunum and ileum.

Question 4

what is the first 25-30cm of the small intestine called?

Answer 4

duodenum

Question 5

things about the jejunum?

Answer 5

middle part of small intestine, about 2.5m long

Question 6

things about the ileum?

Answer 6

final section of the small intestine, is about 3m long

Question 7

what is added to the chyme in the deodenum?

Answer 7

Digestive enzymes made by the pancreas and liver in order to continue to break down carbs, protein and lipids.

Question 8

where does the absorption of nurtients into the bloodstream occur?

Answer 8

small intestine

Question 9

perstalisis in relation to acidic chyme?

Answer 9

moves the acidic chyme along the small intestine

Question 10

what are villi?

Answer 10

tiny finger-like projections which increase surface area of small intestine

Question 11

what is the pancreas?

Answer 11

an organ located in the abdomen.
-plays an essential role in converting the food we eat into fuel for the body’s cells.

Question 12

what does pancreas add?

Answer 12

alkaline buffers to increase pH and neutralize acids

Question 13

what does the pancreas do to lipase and amylase?

Answer 13

secretes it into the duodenum

Question 14

what enzymes does the pancreas produce?

Answer 14

trypsinogen and chymotrypsinogen

Question 15

what is bile

Answer 15

Bile is a fluid made and released by the liver and stored in the gallbladder

Question 16

what does bile breakdown?

Answer 16

lipids into smaller blobs that are easier to digest

Question 17

what are gallstones?

Answer 17

accumulation of cholesterol deposits inthe gallbladder from excess bile.

Question 18

What does the liver do in the digestive system?

Answer 18

Manufactures biles, a detergent like substance that facilitates digestion of fats

Question 19

What does the stomach do in the digestive system?

Answer 19

Adds acid, enzymes, and fluid; churns, mixes and grinds food to a liquid mass

Question 20

What does the gall bladder do in the digestive system?

Answer 20

Stores hold until needed

Question 21

What does the pancreas do in the digestive system?

Answer 21

Manufactures enzymes to digest macromolecules; secretes bicarbonate to neutralize stomach acid that enters small molecules intestine

Question 22

What does the large intestine do in the digestive system?

Answer 22

Absorbs water and slats; passes remaining undigested material and some water out of the body

Question 23

What does the rectum do in the digestive system?

Answer 23

Stores waste prior to elimination

Question 24

What does the abus do in the digestive system?

Answer 24

Holds recteum closed; opens to allow elimination