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Alimentory System > 7 - Liver structure and function > Flashcards

7 - Liver structure and function Flashcards

1
Q

how much does liver weigh

A

about 1.5 kg

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2
Q

how many major lobes is there

A

2

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3
Q

which majfor lobe is bigger

A

right

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4
Q

what are the 2 minor lobes of the liver

A

caudate and quadrate

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5
Q

liver porta content and location

A

wher hte blood veslels including hepatic portal vein, hepatic arteyr, righ and left hepatic ducts, lympathics, common ehptiac duct exit

inferior side of right lobe

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6
Q

wher is the causdate area

A

top and middle back of liver

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7
Q

where is hte bare area of the liver

A

anterior right side

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8
Q

wher ishte the quatre lobe

A

bottom and middle of liver

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9
Q

what covers the bare area of the liver

A

coronary ligament

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10
Q

what is a hepatic lobule

A

hexaciton which contains basic strucle unit of the liver

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11
Q

what is on the outside ofhte hepatic lodule

A

portal triad

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12
Q

what connects porta triad to central vein

A

sinusoids

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13
Q

what is included in a portal triad

A

portal vein, bile duct, hepatic artery

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14
Q

what does the central bvein goonto form

A

ivc

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15
Q

what is the pareenchymla clel of liver

A

hepatocytes

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16
Q

what are the non parechmyla cell of the liver

A

liver sinusoid endothelilal cell
hepatic stellate cell
kupffer cells
pit cells

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17
Q

what is the liver sinusoid endothela cell function

A

cells that lie betwen blood in the sinusoid and hepatic cells maintaining vagla tone and acting as a week barrier

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18
Q

fucntion of hepatic stellate cellcs

A

storage of vitamen a , and growth factors and repair of liver damgage

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19
Q

kupffer cells role

A

act as macrophages

20
Q

pit cells role

A

regeneration of the liver

21
Q

what cells are cholangiocytes

A

billary epitheal cells

22
Q

what is the role of cholangiocgtes

A

make up bile duct covering and are not easily degrated

23
Q

what type of peritnoeum is on the liver

A

viceral

24
Q

septa role

A

to divide liver into smaller subsections

25
Q

does biule drian towards or waewy form crenal vein

A

away

26
Q

where does hepatic blod join liver

A

half way along hte centre of the porva vein tworeds the cnetre of the hepatic nodule

27
Q

which way does epatic poart blod go into sinuslid

A

towrad central vein

28
Q

hepatocyte role

A

bile syntheis, nurtirent storage of gycone, fat , vit b12, a, d, e, k, cu, fe
nutrient interconvertson
detoxification

29
Q

what colour is bilirubin

A

yellow coulor

30
Q

what are the componetns of bile

A

acids, lecithin, cholesterol, bile pigment, toxic metals, bicarbonate

31
Q

what is the lecintin

A

the mix of essentio fat of human body

32
Q

where are bile acid, lechitni, choelestion, bile pigment, toxic metals secred from

A

hepatocytes cells

33
Q

where is hco3 secreteed from

A

duct cells

34
Q

what is bilrubin

A

yellow bile, which is extred form blood and is dated hepatocytes

35
Q

why is fecaes brown

A

bilirumbin

36
Q

what are bile salts made out of

A

a lipophilic [art and a

37
Q

what isht elayres fo the gole balder

A

mucoa, musclareis, serosa

38
Q

what is the mucleso folded layers called

A

rugaue

39
Q

what ishte role of spincter of odi

A

control roel of bile and pancrea juie into the duodenum

40
Q

what hapens to bile when the spincert of oddi is colded

A

it goes back in to the gal bkadd er and becomes reconcrteaded

41
Q

what happesn if ther is fat in the duoceum

A

cck is resaled and goal bldder cojtra na doddi rellex
increased pancre sectioner

42
Q

how muc does hte gall bladder contectee bile

A

5 - 20 times

43
Q

how does the gall balder contare bile

A

pumps out na using sodium posstaium atp ase pum thus removing water

44
Q

how is the k replaced outside the cell

A

a juctoin is in palce, thsu mroe na can be pumped out of the cell

45
Q

enterophagic cilrue

A

liver, to bile ductio to duodeni, illeium, hepatic paortv vein, to liver

46
Q
A

Alimentory System (32 decks)

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