comparative digestive systems Flashcards

(78 cards)

1
Q

what organ is the cecum similar to in ruminants

A

the rumen

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2
Q

what organ to humans have that used to function similar the the cecum

A

the apendix

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3
Q

crop(gallus)

A

storage compartment for food that feeds into the gizzard

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4
Q

salivary amylase

A

enzyme in saliva that breaks down sugar

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5
Q

what animal does not have salivary amylase in their saliva, and where is it

A

cows, it is in their nose

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6
Q

order of microbial importance(most to least)

A

ruminants
horses
monogastric

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7
Q

where is the cecum on on modified monogastric

A

at the end of the system

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8
Q

why cant horses get protein from bacterial fermentation in the cecum

A

because the cecum is at the end of the semester

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9
Q

microbial crude protein

A

bacteria in rumen that makes it work, when they’re washed out of the rumen they get digested as protein

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10
Q

which stomach compartment is also known as the butchers bible

A

the omasum

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11
Q

why should you not feed horses a lot before or after workout

A

digestion uses a lot of blood flow so you don’t want blood diverted to other areas

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12
Q

passage rate of monogastric

A

8-12 hours

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13
Q

passage rate of ruminants

A

96-120 hours

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14
Q

crude protein of urea

A

280

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15
Q

mucin

A

lubrication aid for swallowing

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16
Q

bicarbonate salts

A

buffer to regulate pH in stomach

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17
Q

urea cycle

A

capture of nitrogen by ruminants, if it leaves the system it fertilizes the ground and produces nitrogen rich grass to reenter the system

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18
Q

reticulum volume

A

5%

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19
Q

Rumen volume

A

80%

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20
Q

omasum volume

A

7-8%

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21
Q

abomasum volume

A

8-9%

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22
Q

scratch factor

A

you need rough food to rub against the side of rumen to keep papillae healthy

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23
Q

which compartment is referred to as the honeycomb

A

reticulum

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24
Q

what can cause bacteria in rumen to die

A

acidosis(change in pH)

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25
what causes acidosis
too much readily digestible nutrients
26
deamination
removes amino group to make amino acids
27
why should you feed ruminants extra protein in the winter
grass doesn't have enough nitrogen
28
three main VFAs
propionate Acetate Butyrate
29
what happens if gasses are not expelled properly
animal will bloat and can cause death if not treated
30
how to recognize bloat
rumen will swell causing left side of body to look abnormally large
31
what is the purpose of the urea cycle
preserve nitrogen in the system
32
laminae
folds in the papillae in the omasum
33
functions of omasum
reduce particle size absorb water
34
papillae in the omasum
smaller and denser than the rumen
35
stomach acidity of monogastric
2-3
36
digestive juices secreted by stomach
gastrin HCL pepsin rennin
37
what causes ulcers
to acidic
38
pyloric sphincter
separates duodenum from the stomach
39
where are gastric juices held
glandular region
40
purpose for large non glandular region
roughage requires more space no regurgitation
41
what is gastrin released in response to
stomach expansion partially digested proteins hypercalcemia(altered calcium levels)
42
what does statin mean
stop
43
what does gastrin do
causes release of digestive enzymes
44
what inhibits gastrin
acid(HCL) in stomach somatostatin
45
what does HCL activate
pepsin
46
pepsinogen function
begins protein digestion
47
what are pepsinogens released by
chief cells
48
rennin function
digest mothers milk
49
chyme
liquid feedstuff
50
duodenum effect on chyme
makes it more basic
51
what part of small intestine is largest in diameter
duodenum
52
what part of small intestine is largest by length
jejunum
53
where are payers patches located
the illium
54
what are payers patches
clusters of immune cells
55
bile salts
emulsify fats in the liver
56
peptidase
substrate: peptides
57
lactase
substrate: lactose
58
sucrase
substrate: sucrose
59
maltase
substrate: maltose
60
chymotrypsin
substrate: protein
61
trypsin
substrate: protein
62
lipase
substrate: tryglycerides(lipids)
63
amylase
substrates: carbohydrates
64
maintenance energy
energy needed for survival
65
lignin
indigestible(hard cell wall)
66
cellulos
digestible(soft cell wall)
67
T/F cell walls are complex carbohydrates
TRUE
68
what is metabolic water
byproduct of chemical reaction
69
what beside ruminants can digest fiber
horses(and koalas)
70
factors affecting water intake
temp feed type pasture water quality stage of production
71
when is urinary calculi more common. why?
winter, goats feel less need to drink water since its cold
72
what amino acid do pigs need
lysine
73
what amino acid do cats need
arginine
74
amino acids needed by small animals
cysteine methionine
75
PVT amino acids
phenylalanine valine threonine
76
TIM amino acids
tryptophan isoleucine methionine
77
HALL amino acids
histidine arginine lysine leucine
78
saturated indicated what in regards to fatty acids structure
no double bonds