CH 26 Part 1

Question 1

4 layers of the GI tract, innermost to outermost

Answer 1

1. Mucosa
2. Submucosa
3. Muscularis
4. Adventitia

Question 2

4 classes of micro molecules

Answer 2

1. Carbs
2. Proteins
3. Nucleic acids
4. Lipids

Question 3

Which micro molecules does not go directly to the blood?

Answer 3

Lipids

Question 4

The break down of fat (lipids) is transported by?***

Answer 4

Lacteal vessels

Question 5

Microvilli aids with?

Answer 5

Absorption

Question 6

____ occurs when smooth muscles contract and push the bolus forward?

Answer 6

Peristalsis

Question 7

Blood gets to organs by?

Answer 7

Mesentery

Question 8

What is a mesentery?

Answer 8

Double layer of peritoneum

Question 9

Functions of mesentery?

Answer 9

Supports. suspends and stabilizes GI tract organs

Question 10

What are between mesentery folds?

Answer 10

1. Blood
2. Lymph
3. Nerves

Question 11

What is the greater omentum?

Answer 11

Accumulation of large amounts of excess fat on the stomach (beer belly)

Question 12

The two serous membranes associated with the abdominal cavity are?

Answer 12

1. Parietal peritoneum

2. Visceral peritonem

Question 13

Three hormones associated with digestion are?

Answer 13

1. Gastrin
2. Secretin
3. Cholecystokinin

Question 14

When food leaves the stomach it is now?

Answer 14

Chyme

Question 15

Stomach sphincter function?

Answer 15

Close off stomach and prevent digestive enzymes from exiting

Question 16

What is the cellular process that occurs for digestion?***

Answer 16

Hydrolysis

Question 17

How much saliva is produced per day?

Answer 17

1.0-1.5L

Question 18

Saliva contains?

Answer 18

1. Amylase
2. Mucin
3. Lysozyme

Question 19

What is the only organ that has 3 layers of smooth muscle?

Answer 19

Stomach

Question 20

What the three layers of the stomach?

Answer 20

1. Inner oblique
2. Circular
3. Outer longitudinal

Question 21

Stomach gastric pits lead to?

Answer 21

Gastric glands