Chapter 26 Part 2 Flashcards Preview

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Flashcards in Chapter 26 Part 2 Deck (25):
1

The small intestine extends from the pyloric sphincter to the..

Ileocecal sphincter

2

Small intestine is divided into the

Duodenum, jejunum, and ileum

3

Small intestine is highly adapted for?

Digestion and absorption

4

Small intestine glands produce..

Enzymes, mucus, and microvilli, villi and circular folds

5

Mechanical digestion in the small intestine involves?

Segmentations and peristalsis

6

Enzymes in pancreatic juice and in microvilli of absorptive cells of the small intestine breakdown..

Disaccharides to monosaccharides

7

Protein digestion is completed by?

Peptidase enzymes

8

Triglycerides are broken down into fatty acids and monoglycerides by

Pancreatic lipase

9

Passage of nutrients from digested food in the GI tract into blood or lymph ?

Absorption

10

Absorption which occurs mostly in the small intestine, occurs by ?

Simple diffusion, facilitated diffusion, osmosis, and active transport

11

Monosaccrides, amino acids and short-chain fatty acids pass into?

Blood capillaries

12

The large intestine extends from the..

Ileocecal sphincter to the anus

13

Large intestines regions include?

Cecum, colon, rectum, and anal canal

14

Contains numerous absorptive cells that absorb water and goblet cells that secret mucus

Mucosa

15

Strong peristaltic wave that drives the contents of the colon into rectum

Mass peristalsis

16

In the large intestine, substances are further broken down and some vitamins are synthesized through?

Bacterial action

17

The large intestine absorbs?

Water, electrolytes and vitamins

18

He elimination of feces from the rectum is called ?

Defecation

19

Reflex action aided by voluntary contractions of diaphragm and abdominal muscles.

Defecation

20

Digestive activities occur in three overlapping phases?

Cephalic phase, gastric phase, intestinal phase

21

Salivary glands secret saliva and gastric glands secret gastric juice in order to prepare the mouth and stomach for food that is about to be eaten.

Cephalic phase

22

Presence of food in stomach causes what phase? Promotes gastric juice

Gastric phase

23

In this phase food is digested in the small intestine

Intestinal phase

24

Digestive changes with age include?

Decreased secretory mechanisms, decreased motility and loss of tone

25

Specific changes with age include

Loss of taste, hernias, ulcer