Lecture 7 (Digestive System)

Question 1

Alimentary Canal

Answer 1

Digestive or gastrointestinal tract
1. Can break down both chemically and mechanically
2. Deals with excretion of waste
3. Deal with water balance
Composed of: mouth, teeth, tongue, phranyx, skeletal muscle, stomach, small intestine, large intestine, colon, rectum, pancreas, gall bladder

Question 2

Tongue

Answer 2

Skeletal muscle

Frenulum holds the tongue down, too short can make sounds correctly, “tongue-tied”

Question 3

Papillae

Answer 3

Found the tongue
Filiform: cones, fine projections that give appearance of the tongue
Fungiform: mushroom
Circumvalate: V shapened, include the test buds at the back of the tongue

Question 4

Tonsil

Answer 4

huge collection of white blood cells
Lingual: base of the tongue
Pharyngeal = adenoids: throat
Palatine: tongue/ palate

Question 5

Teeth Lose

Answer 5

Bone/ socket, will be reabosrobed make the jaw lighter

Question 6

Cancers of the tongue

Answer 6

Chewing tobacco primary cause

Question 7

GERD

Answer 7

Gastroesophegal reflux disease 
"heart burn"
acid will enter by passing the sphincter
can cause cancer and ulcers
Blood from ulcers can increase risk of cancer

Question 8

Stomach

Answer 8

Acts like a blender, doesnt absorb nutrients

Question 9

Duodenum Dumping

Answer 9

Too much food too fast

Question 10

Ulcers in the stomach

Answer 10

Not eating enough, digest stomach, can cause bacterial infection

Question 11

Diet and Cancer

Answer 11

USA = colon
high fat diets deficient in fiber
Asian = stomach
Spices and ingredients and msg 
FIX
Low fat high fiber

Question 12

Greater Omentum

Answer 12

Lots of blood vessel and white blood cells
Covers all intestines
Shock absorber
Lymph node site

Question 13

Duodenum

Answer 13

Mucus and alkaline fluid, correct the ph from the stomach acid
Protect against ulcers
Ulcers here will show up as dark stool

Question 14

Jejunum

Answer 14

Permanent folds, 8 to 10 feet long

Question 15

Ileum

Answer 15

Smoother 10 to 12 feet long

Question 16

Colon

Answer 16

has droplet of fat on the outside, fold, 3 feet long

Question 17

Vermiform appendix

Answer 17

Tiny hole, near the beginning of the colon, if blocked, burst creates infection to the intestines
Appendicitis of the vermiform
Lymph nodeals

Question 18

Appendix of the ileum

Answer 18

Meckle's diverticulum
2 x 2 x 2 rule
two proximal of illeceual valve
two inches long
Two percent of pop
Its a genetic condiction
If born with it can burst

Question 19

Diarrhea

Answer 19

Food goes to rapidly through the colon
liquid stool cause of secretion through out the way
the colon major role is water absorption
Caused: infection, viral or stress
Tremendous water loss
Children with cholera quickly die because of water loss

Question 20

Hemerroids

Answer 20

Veins at the end of the rectium
can devo varicose veins
occurs when not enough water and stiff stool
tear the veins

Question 21

Polyps

Answer 21

devo abnormal growth of the lining

can devo into cancer

Question 22

parasites

Answer 22

can go into the blood stream