Digestive System

Question 1

6 Parts of the GI Tract (OPESSL)

Answer 1

1) Oral Cavity
2) Pharynx
3) Esophagus
4) Stomach
5) Small Intestines
6) Large Intestines

Question 2

6 Accessory Organs to GI Tract

Answer 2

1) Teeth
2) Tongue
3) Salivary Glands
4) Liver
5) Gallbladder
6) Pancreas

Question 3

4 Regions of Stomach (top to bottom, CFBP)

Answer 3

1) Cardia- top part that connects stomach to esophagus
2) Fundus
3) Body- largest part of sack
4) Pylorus- funnel shaped region at bottom.

Question 4

4 Layers of Stomach (MSMS)

Answer 4

1) Mucosa- innermost layer, smooth muscle, contains mucus membranes that secret digestive enzymes & hydrochloric acid.
2) Submucosa- around mucosa, connective tissue, contains nerves & blood vessels.
3) Mucularis- made of smooth muscle layers, enables movement
4) Serosa- outermost layer, secretes serous fluid that keeps stomach wet to reduce friction from surrounding organs

Question 5

3 Parts of Small Intestine (DJI)

Answer 5

1) Duodenum- receives food & chemicals from stomach
2) Jejunum- where nutrients are absorbed into the blood
3) Ileum- where rest of nutrients are absorbed.

Question 6

Liver (3 functions & role in digestion)
Function of Gallbladder

Answer 6

• 2nd Largest organ in body (after skin), located under Diaphragm
  1) Detoxification of the blood
  2) Storage of nutrients
  3) Production of components of blood plasma
• Liver’s role in digestion is to produce bile
• Gallbladder is a small organ that stores & releases bile.

Question 7

Pancreas

Answer 7

1) Secretes enzymes that digest food
2) Secretes hormones that move directly into the bloodstream to control blood sugar levels (INSULIN & GLUCAGON)