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Flashcards in Pharmacology Deck (85)
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1

What are the hollow organs separated by?

Sphincters

2

What do sphincters do?

Control the movement of food

3

What occurs in the mouth and oropharynx?

Chopping of food, lubrication, beginning of carbohydrate and fat digestion and propel food to oesophagus

4

What is the function of the oesophagus?

To deliver food to the stomach

5

What the the main function of the stomach

Temporary storage of food

6

What else does the stomach do?

Continues digestion of carbs and fat and initiates the digestion of proteins

7

What is the main function of the small intestine?

Principal site of digestion and absorption of nutrients

8

What 3 structures does the small intestine consist of?

Duodenum, jejunum and ileum

9

What is the main function of the large intestine?

The reabsorption of fluids and electrolytes back into the body. It also stores fecal matter before regulated expulsion

10

What 7 structures is the large intestine made up of

Cecum, Ascending colon, Transverse colon, Descending Colon, Sigmoid Colon, Rectum, Anus

11

How many accessory structures are there?

3

12

Name the accessory structures

Salivary glands, liver and gall bladder and the pancreas

13

What is the function of the salivary glands

Secrete saliva

14

What is the function of the liver and gall bladder?

Storage and secretion of bile which aids in fat digestion

15

Where is the location of the pancreas?

Inferior to the stomach

16

Gastrointestinal motility is due to what?

The activity of smooth muscle

17

What happens to the lumen when circular muscle contracts?

Becomes long and narrow

18

What happens to the intestine when the longitudinal muscle contracts?

It becomes short and fat

19

What happens when the muscularis mucosae contract

There is a change in absorptive area and the secretory area of mucosa

20

What is motility?

A mechanical activity mostly involving smooth muscle

21

Name the 3 movements of motility

Propulsive, Mixing and Tonic

22

Give an example of propulsive

Peristalsis

23

An example of mixing

elecrtolytes and digestive enzymes

24

Give an example of tonic movement

Sphincters

25

Where can secretion occur?

In the GI tract itself

26

Define digestion

The biochemical breakdown of chemically complex foodstuff into smaller, absorbable units

27

What are carbohydrates broken down to? and name an enzyme for this process

Monosaccharides and amylases

28

What are proteins broken down to? Name an enzyme for this process

AMino acids, dipeptides and tripeptides. Proteases or dipeptidases

29

What are fats mostly broken down to? What is the enzyme mediating this?

Monoglycerides and free fatty acids. Lipases

30

Define absorption

The transfer of absorbable products of digestion from digestive tract to the blood or lymph.

Decks in Gastro Class (67):