digestive system Flashcards

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1
Q

what is mechanical digestion

A

breaking down food using physical forces

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2
Q

what is chemical digestion

A

breaking down food using chemical reactions

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3
Q

what digestion occurs in the mouth

A

both mechanical and chemical(saliva)

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4
Q

what is the tongue composed of

A

skeletal muscle

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5
Q

what digestion is teeth responsible for

A

mechanical

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6
Q

what are the 3 types of teeth

A

incisors, canines and molars

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7
Q

what is the pharynx

A

the region between the mouth and esophagus where the digestive and respiratory systems intersect

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8
Q

what is the esophagus

A

the pathway for food to the stomach

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9
Q

what is peristalsis

A

muscular contractions that assist in movement and mechanical breakdown

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10
Q

where does the esophagus end at

A

the lower esophageal sphincter

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11
Q

what is the stomach responsible for

A

it is responsible for some of the chemical and mechanical digestion of food

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12
Q

where does the stomach terminate at

A

the pyloric sphincter

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13
Q

what assists in mechanical digestion in the stomach

A

the smooth muscle

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14
Q

how is mechanical digestion performed in the stomach

A

by the contraction of the stomach’s muscular portion, churning the food and breaking it up into smaller portions

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15
Q

what comes after the pyloric sphincter

A

the small intestine

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16
Q

how does the small intestine increase its surface area

A

it contains villi

17
Q

how can the small intestine be separated into parts

A

it can be separated into the duodenum, the jejunum and the ileum

18
Q

where is the common bile duct located

A

the duodenum

19
Q

what are peyers patches responsible for

A

monitoring and regulating the presence of potentially pathogenic bacteria

20
Q

how does the duodenum counteract the acidified contents that came from the stomach

A

by secreting a mixture of bile and pancreatic juice(which contains sodium bicarbonate)

21
Q

what is the final portion of the digestive tract

A

the large intestine

22
Q

divide the large intestine into components

A

cecum, colon, rectum and anal canal

23
Q

what is the role of the large intestine

A

to absorb water, salts, vitamins and to store undigested materials

24
Q

break down the colon into parts(in order)

A

ascending colon, transverse colon, descending colon, sigmoid colon and rectum

25
Q

what are the accessory organs of the digestive system

A

the pancreas the liver and the gall bladder