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Flashcards in Chapter 25 Deck (140)
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1

Accessory digestive organs

Teeth, tongue, gallbladder, liver, pancreas, salivary glands

2

digestive glands

Salivary glands
Liver
Pancreas

3

6 digestive processes

ingestion
propulsion
mechanical digestion
chemical digestion
absorption
defecation

4

Ingestion

eating or drinking nutrients.

5

Propulsion

movement of the ingested material from the mouth through the GI tract to the anus

6

Mechanical digestion

breaking down the food by physical means, such as chewing

7

Chemical digestion

breaking down the nutrients in basic units that can be absorbed

8

Absorption

moving nutrients across the basement membrane of the mucous membrane into the blood of lymph by active or passive transport processes.

9

Defecation

excretion of food content that cannot be broken down and absorbed in the GI tract

10

what controls the digestive system?

ANS

11

the 2 groups of organs in the digestive system

- Alimentary canal (gastrointestinal or GI tract)
- Accessory Digestive Organs

12

organs of alimentary canal

Mouth, pharynx, esophagus, stomach, small intestine, and large intestine

13

what do mechanoreceptors and chemoreceptors respond to?

stretch, change in osmolarity and presence of substrate and end products of digestion

14

the serous membrane that lines the peritoneal cavity

peritoneum

15

function of the peritoneum

to hold organs in place and store fat

16

4 layers of the alimentary canal

- Mucosa
- Submucosa
- Muscularis External
- Serous

17

functions of the mouth

- Ingestion
- Propulsion (into pharynx)
- Mechanical digestion
- Chemical digestion (amylase)

18

function of hard palate

helps with chewing and formation of bolus

19

what does the soft palate do during swallowing?

closes off the nasopharynx

20

function of the tongue

Repositions and mixes food during chewing

21

where is the tongue attached to?

the lingual frenulum

22

term for dry mouth

xerostomia

23

how many baby teeth do we have

20

24

how many permanent teeth do we have?

32

25

word for baby teeth

deciduous teeth

26

which teeth do grinding?

molars

27

which teeth do tearing?

canines

28

which teeth do cutting?

incisors

29

where does the esophagus run from?

laryngopharynx to stomach

30

what regulates gastric secretion?

neural and hormonal mechanisms