Chapter 11 Digestive Organs Flashcards Preview

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Flashcards in Chapter 11 Digestive Organs Deck (26):
1

Mouth

Opening through which food passes into body, breaks food into small pieces by mastication and mixing with saliva

2

Tongue

Consists mostly of skeletal muscle. It provides movement for food for mastication, directs food to the pharynx for swallowing, and is a major organ for taste and speech

3

Palate

Separates the nasal cavity from the oral cavity

4

Soft palate

Posterior portion not supported by bone

5

Hard palate

Anterior portion, supported by bone

6

Uvula

Soft V shaped structure that extends from the soft palate, directs food into the throat

7

Pharynx, throat

Performs the swallowing action that passes food from the mouth to the esophagus

8

Esophagus

10 inch tube that is a passageway for food extending from the pharynx to the stomach

9

Stomach

J shaped sac that mixes and stores food. It secretes chemicals for digestion and hormones for local communication control

10

Pylorus

Portion of the stomach that connects to the small intestines

11

Pyloric sphincter

Ring of muscle that guards the opening between the stomach and the duodenum

12

Small intestine

20 foot tube extending from the pyloric sphincter to the large intestine. Digestion is completed in the small intestine. Absorption, the passage of nutrients (end products of digestion) from the small intestine to the bloodstream, takes place through the villi.

13

Duodenum, Jejunum and ileum

Portions of the small intestine

14

Large intestine

Approx 5 feet long tube that extends from the ileum to the anus. Absorption of water and transit of solid waste products of digestion takes place here.

15

Cecum

U shaped pouch that is the first portion of the large intestine

16

Colon

Divided into four parts: ascending, transverse, descending and sigmoid

17

Rectum

Distal portion of the large intestine, approx 10 inches long, extending from the colon to the anus

18

Anus

Sphincter muscle (ring like band of muscle fiber that keeps an opening tight) at the end of the digestive tract. Provides for elimination of solid waste products.

19

Salivary glands

Produce saliva which flows into the mouth

20

Liver

Produces bile which is necessary for the digestion of fat. Performs functions of digestion and metabolism.

21

Bile ducts

Passageways that carry bile. There are three ducts: hepatic, common and cystic, collectively refered to as the biliary tract.

22

Gallbladder

Small saclike structure that stores bile produced by the liver

23

Pancreas

Produces pancreatic juice which helps digest all types of foods and secretes insulin for carb metabolism

24

Peritoneum

Serous saclike lining of the abdominal and pelvic cavities

25

Appendix

Small pouch which has no known function in digestion

26

Abdomen

Portion of the body between the thorax and the pelvis

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