BIOL 215 Exam 3- Digestive System UPDATED Exam Questions and CORRECT Answers

BIOL 215 Exam 3- Digestive System
UPDATED Exam Questions and CORRECT
Answers
Other name for digestive tract - CORRECT ANSWER - -alimentary canal
-GI tract


Regions of Digestive Tract - CORRECT ANSWER - Oral cavity
Pharynx
Esopahgus
Stomach
Small intestine
Large intestine
Anus


Accessory organs of digestive system - CORRECT ANSWER - salivary glands
tonsils
liver
galbladder
pancreas


Functions of digestive system - CORRECT ANSWER - 1 Ingestion
2.Mastication
3.Propulsion
4.Mixing
5.Secretion
6. Digestion
7. Absorption

, 8. Elimination


Ingestion - CORRECT ANSWER - intake of solid or liquid food into the stomach through
the oral cavity


Mastication - CORRECT ANSWER - breaks food into smaller particles for better
penetration of digestive enzymes


Propulsion - CORRECT ANSWER - movement of food through the digestive tract



Deglutination - CORRECT ANSWER - swallowing (oral cavity to esophagus)



Peristalsis - CORRECT ANSWER - rhythmic muscular contractions (esophagus to large
intestine)


Mass movements - CORRECT ANSWER - contractions in large intestine (large intestine
to anus)


Mixing - CORRECT ANSWER - segmental contractions that move material back and
forth, break food into smaller pieces


Secretion - CORRECT ANSWER - lubricate, liquefy, buffer, and digest food



Secretions of digestive system - CORRECT ANSWER - -Mucus: lubricates food and coats
lining to protect from mechanical abrasion, acid, and digestive enzymes
-Water: liquefies food to make it easier to digest and absorb
-Bile: emulsifies fats
-Enzymes: break down food molecules for better absorption by intestinal wall