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ANAPHY Lab&Lec > Digestive System Lec & Lab > Flashcards

Digestive System Lec & Lab Flashcards

1
Q

composed of oral cavity, pharynx, esophagus, stomach, small intestine,
large intestine, anus

A

Digestive Tract / Gastrointestinal Tract

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2
Q

Layers of Digestive Tract Wall

A

Esophagus / Small Intestine

  • Circular
  • Longitudinal

Stomach

  • Oblique
  • Circular
  • Longitudinal
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3
Q

Consists of mucous epithelium, lamina propria (loose connective
tissue), muscularis mucosae (thin smooth muscle layer)

A

Mucosa

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4
Q

Consists of circular smooth muscle (inner), longitudinal smooth
muscle (outer)

A

Muscularis

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5
Q

w/ serosa

A

Peritoneum

without serosa= ADVENTITIA

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6
Q

Retroperotoneal oragans

A

Kidney
Pancreas
Doudenum

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7
Q

connective tissue sheets that hold the abdominal cavity
organs in place

double layer of peritoneum

A

Mesenteries

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8
Q

connects the lesser curvature of the stomach

to the liver and diaphragm

A

Lesser Omentum

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9
Q

connects the greater curvature of the

stomach to the transverse colon and posterior body wall

A

Greater Ommentum

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10
Q

plays a major role in the process of swallowing; major sensory
organ for taste; one of the major organs of speech; houses taste buds and
mucus

A

Tongue

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11
Q

T or f

30 teeth in adult and baby

A

False

32-Adult
20-Baby

Incisor & Canine - cutting
Premolars & Molars - chrushing food

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12
Q

parts of tooth

A

Crown
Cusp
Neck
Root

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13
Q

bonelike tissue that surrounds the pulp cavity

A

dentin

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14
Q

center of the tooth

contains blood vessels nerves, and pulp (connective tissue)

A

Pulp Cavity

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15
Q

extremely hard acellular substance

  • covers the dentin of the tooth drown
  • protects against abrasions
A

Enael

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16
Q

Largest Salivary Duct?
Medium?
Smallest

A

Parotid
Mandibular
Lingual

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17
Q

– enzyme that has weak antibacterial action

A

lyzozyme`

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18
Q

Breaks large food particles into many small ones

A

Mastication

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19
Q

Helps keep the oral cavity moist

Contains enzymes that begin the process of digestion

A

Saliva

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20
Q

Phases of Swallowing

A

Voluntary
Pharyngeal
Esophageal

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21
Q

T or F

mixing and peristalsis in small intestine

A

False

sa pharynx upto cardiac oopening presitalsis lang
sa stomach ang mixing and peristalsis
sa si and peristalsis and segmental

in Large intestine
mas movement

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22
Q

T or F

stomach can hold up to 4L of food

A

F, 2L lang kaya

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23
Q

produces mucus

A

goblet cell

24
Q

T or F

stomach has compact villi and more spaces in between
Small intestine is slightly compact but w/ longer villi

A

T

25
Q

T or F

the stomach is stimulated to contract by low blood glucose
levels usually 12 -24 hours after meal (hypoglycemic)

A

True

26
Q

3 parts of Stomach

A

Cardiac Opening
Fundus
Body
Pyloric (canal and anterior)

27
Q

produce hydrochloric acid & intrinsic factor

A

Parietal Cells

28
Q

chief cell oroduces

A

Pesinogen (= if added to HCl- = Pepsin)

29
Q

kills microorganisms and activates pepsin.

A

hydrochloric acid

30
Q

breaks covalent bond of proteins to form smaller peptide chains.

A

Pepsin

31
Q

lubricates and protects epithelial cells from the damaging effect
of acidic chime and pepsin.

A

Stomach

32
Q

binds with vitamin B12

A

Intrinsicc Factor

33
Q

factors increase stomach secretions

A
  • parasympatethic stimulation
  • gastrin
  • histamine
34
Q

inhibitory of stomach secretions

A

Chlolecystokinin

Secretin

35
Q

stomach secretions are initiated by the sight, smell, taste, or thought of food

A

Cephalic Phase

36
Q

partially digested proteins and distention of the stomach promote secretion

A

Gastric Phase

37
Q

acidic chyme in the duodenum stimulates neuronal reflexes and the
secretion of hormones that inhibit gastric secretions by negative feedback
loops

A

Intestinal phase

38
Q

released from

the duodenum in response to low pH

A

secretin

39
Q

released

from the duodenum initiated by fatty acids and peptides

A

Cholecystokinin

40
Q
  • Major site of digestion and absorption of food
  • Chyme takes 3 to 5 hours to pass through
  • Contains enzymes to further breakdown food
  • Contains secretions for protection against the acidity of chyme
A

Small Intestine

41
Q

2/5 of small intestine

A

jejunum

42
Q

3/5 of SI

A

Ileum

43
Q

have microvilli, produce digestive enzymes, absorb

digested food

A

Absorptive Cells

44
Q

The ileocecal sphincter at the juncture of the ileum and the ileocecal valve prevents movement from the large intestine back into the ileum.

A

movement of peristalsis

45
Q

Functions of Liver

A
  1. Digestion
  2. Excretion
  3. Nutrient storage
  4. Nutrient conversion
  5. Detoxification of harmful chemicals
  6. Synthesis of new molecules
46
Q

Liver has 5 Lobes

T or F?

A

False 4 lang

Right Lobbe
Left Lobe
Caudate Lobe
Quadrate Lobe

47
Q

Portal Triad

A

Hepatic:

48
Q

PORTAL TRIAD

A

Hepatic : ARTERY, DUCT, VEIN

49
Q

stores bile

A

gallbladder

50
Q

moves food through digestive tract includes swallowing and peristalsis

A

Propolsion

51
Q

break down small peptides into

tripeptides

A

Peptidases

52
Q

T or F
Approximately 9 liters of water enters the digestive tract
- Approximately 2 liters from food & drink and remaining 7 liters is from
digestive secretions

A

T

53
Q

mild anti bacterial in mouth?

A

lyzozyme

54
Q

T or f

stomach is more on carbohydrates digestion

A

F

more on protein sa stomach

55
Q

main energy source?
secondary?
tertiary?

A

Carbohydrate
Lipids
Proteins

ANAPHY Lab&Lec (5 decks)

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