teas digestive system Flashcards

1
Q

chemical digestion

A

enzymes break down food into smaller molecules

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2
Q

major organs of digestive system

A

oral cavity, pharynx, esophagus, stomach, small intestine, large intestine

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3
Q

salivary glands

A

glands in the mouth that produce saliva to begin the chemical digestion of food

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4
Q

how does saliva breakdown food and make it a chemical digestion?

A

saliva provides an enzyme amylase and lipase to breakdown starch and lipids

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5
Q

enzyme amylase

A

digest carbohydrates and made in pancreas

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6
Q

lipids

A

fats

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7
Q

lipase

A

pancreatic enzyme necessary to digest fats

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8
Q

starches

A

complex carbohydrates

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9
Q

bolus

A

A term used to describe food after it has been chewed and mixed with saliva

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10
Q

pharynx

A

throat; passageway for food to the esophagus

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11
Q

epiglottis

A

a flap of cartilage that covers the windpipe while swallowing

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12
Q

esophagus

A

A muscular tube that connects the mouth to the stomach

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13
Q

peristalsis

A

the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward.

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14
Q

esophagial sphincter

A

prevent reflux of food back to esophagus

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15
Q

stomach

A

large (j-shaped) muscular sac that continues the mechanical (churning) and chemical digestion of food (via enzymes/acid)

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16
Q

pepsin

A

Enzyme that breaks down proteins in the stomach

17
Q

chyme

A

Semifluid mass of partially digested food that passes from the stomach to the small intestine

18
Q

small intestine

A

Digestive organ where most chemical digestion and absorption of food takes place

19
Q

what are the parts of the small intestine

A

duodenum, jejunum, ileum

20
Q

duodenum

A

first part of the small intestine
- chyme is neutralized by bicarbonate from pancreatic secretions

21
Q

gallbladder

A

stores and concentrates bile

22
Q

liver

A

produces bile

23
Q

cecum

A

a pouch connected to the junction of the small and large intestines

24
Q

large intestine

A

The last section of the digestive system, where water is absorbed from food and the remaining material is eliminated from the body

25
Q

vitamin k

A

Helps blood clot, absorbed in the large intestine

26
Q

rectum

A

A short tube at the end of the large intestine where waste material is compressed into a solid form before being eliminated

27
Q

anus

A

A muscular opening at the end of the rectum through which waste material is eliminated from the body

28
Q

appendix

A

A small, fingerlike extension of the vertebrate cecum; contains a mass of white blood cells that contribute to immunity.

29
Q

List the accessory organs of the digestive system

A

teeth, tongue, salivary glands, liver, gallbladder, pancreas

30
Q

Intestinal wall layers

A

Mucosa (innermost layer)
submucosa
muscularis
serosa (outermost layer)