Digestive Organs Flashcards Preview

Function And Structure > Digestive Organs > Flashcards

Flashcards in Digestive Organs Deck (53):
1

What does the oral cavity/buccal cavity contain?

Mouth, lips and cheeks, palate , Tongue, salivary gland's, teeth

2

Where is the lingual frenulum located in the mouth?

The floor of the mouth under the tongue

3

I muscular tube that is about 10 inches in link that connects the mouth/pharynx to the stomach

Esophagus

4

This helps prevent backflow of stomach acid into Esophagus

Lower Esophageal sphincter

5

This is a muscular sac that stores and primarily digest food

Stomach

6

Food is broken down into a substance called what

Chyme

7

The stomach is composed of what for layers?

Cardia
Fundus
Body
Pylorus

8

What does the crisscross pattern on the inside of the stomach do for food?

It allows the stomach to contract and grind as it processes food

9

This helps the stomach expand when the stomach is full

Rugae

10

How big is an adult empty stomach and how big is it after eating?

Empty stomach – 50 mL
Full stomach -1.5 mL

11

The gastric glands of the stomach produce gastric juices that are composed of what for different types of cells?

Mucous neck cells
Parietal cells
Chief cells
Enterinendocrine cells

12

These cells secrete mucus which protects the stomach lining and keeps stomach from digesting itself

Mucous cells

13

These cells secrete hydrochloric acid and absorbs vitamin B 12 it also helps kill microbes and swallowed food

Parietal cells

14

These cells secrete digestive enzymes such as Pepsinogen

Chief cells

15

These cells secrete a hormone that increases appetite and helps digestive function

Enterinendocrine cells

16

The gastric juices of the stomach is controlled by what?

Hormones, nerves

Stimuli in the brain, stomach and small intestine

17

The gastric secretion of the stomach consists of what three phases?

Cephalic phase
Gastric phase
Intestinal phase

18

What are the accessory organs?

Liver gallbladder and pancreas

19

The liver is how many pounds?

3 to 4 pounds

20

What is the role of the liver within the body?

Detoxification of the blood, intake of protein, creation of hormones and molecules

21

This produces bile

Liver

22

What stores bile?

Gallbladder

23

What is bile?

It is a yellowish green fluid that contains salt and cholesterol

24

What is the function of bile?

Make into lipids/fats

25

This delivers oxygenated Blood from the aorta to the liver

Hepatic artery

26

Carries oxygen blood from the digestive organs and spleen to the liver

Portal vein

27

This organ secretes insulin/Glucagon

Pancreas

28

The Pancrease creates and secretes what pancreatic juices?

Water
Digestive enzymes
Electrolytes - bicarbonate ions

29

This pancreatic juice assist in chemical digestion in the small intestine

Digestive enzymes

30

Three types of digestive enzymes?

Amylase
Lipases
Pro teases

31

Bicarbonate ions do what?

Help neutralize the pH of the chyme

32

These cells secrete digestive enzymes

The enzymes help break down lipids, proteins, and carbohydrates

Acinar cells

33

Epithelial cells and pancreatic ducts secrete what?

Secrete sodium bicarbonate

34

What does bile reach the gallbladder?

Through a series of ducts (right and left hepatic ducts)

35

Bile then goes down the common hepatic duct and that gen down the common bile duct then backs up into the what?

Cystic duct and then Into the gallbladder

36

This controls the flow of bile and pancreatic juices into the duodenum

Hepatopancreatic sphincter

37

WHat is the duodenum ?
What enters it?

The first 10inches of the small Intestine

Bile and pancreatic juices enter here

38

Allows for completion of chemical digestion and most all nutrient absorption

Small Intestine

39

Small Intestine consists of how many layers ?

4

40

About 8 ft in length
Suspended by the mesentery

Jejunum

41

1to 4 ft in length
Joins the large intestine

Ileum

42

What are three features in the small intestine to increase the mucosal surface area

Circular folds -folds of mucosa
Villi -finger like extensions
Microvilli -on the villi

43

Intestinal lining contains these

It slows the progress of chime and increases its contact with the mucosa

Circular folds

44

Pores at the basis of the villi contain goblet cells that secrete mucus that helps the passage of food

Intestinal Crypts

45

This is around the small intestine

It absorbs remaining water with in the indigestible materials

Stores indigestible food for a brief time

Illuminates indigestible food as feces

Large intestine

46

How many feet is the large intestine in length?

5ft

47

This passes below the liver, stomach, and spleen

Transverse colon

48

The large intestine begins in the blind pouch called what?

Cecum

49

This part of the colon extends up toward the liver

Ascending colon

50

This part of the colon extends down Ward along the left side of the abdominal cavity

Descending colon

51

As part of the colon forms an S shape down the rectum

Sigmoid colon

52

This is the last 7 to 8 inches of the intestine

Rectum

53

This makes up the last inch of the rectum it opens up through the anus

Anal cavity