a. digestion process of breaking down food into smaller parts b. mechanical/physical digestion ...
TRANSCRIPT
I. Terms You Should Know
A. Digestion Process of breaking down food into
smaller partsB. Mechanical/Physical Digestion
Examples: Chewing/Crushing/Tearing food
C. Chemical Digestion Use of enzymes to break down food
D. Absorption Take in nutrients/molecules in the body
A. Teeth
1. 32 Teeth Total2. Incisors
Front Rip/Tear Food
3. Canines “Fangs” Hold Food
4. Molars Back Grind Food
5. Wisdom Teeth Develop in later years Used to replace lost teeth
C. Salivary Glands
1. Produces Saliva2. Moistens/ softens food3. Lubricates Mouth4. Amylase
Enzyme that breaks down starches & carbs
E. Epiglottis
1. Flap that covers the trachea when you swallow
Prevents food from going down your windpipe
A. Gastric Juices/Fluids
1. Pepsin & Hydrochloric Acid
Break down proteins during digestion
2. Mucus Lining of stomach Necessary in
order for stomach to not “eat itself”
B. Chyme
1. End product of stomach digestion2. Takes stomach about 40 minutes to get to this point3. Greenish in color
C. Intestinal Secretions
1. Pancreas Digests: Carbs,
Proteins, & Fats2. Liver
Gall Bladder▪ Stores bile
Bile▪ Digests fat▪ Greenish in color
D. Food Absorbed
1. Villi Tiny fingerlike
projections in stomach Food absorbed here Increases surface area Microvilli (even
smaller)2. Fats enter bloodstream3. Diffusion – allows nutrients from food to enter blood
E. Appendix
1. Current function is unclear2. One theory is that it used to store good bacteria for the body
F. Large Intestine/Colon
1. Involved with waste products2. Absorb water3. Large amount of bacteria found in these locations
G. Anus
1. Opening at the opposite end of the digestive tract from the mouth2. Control expulsion of unwanted semi-solid matter