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animal tissue > CONNECTIVE TISSUE -till bone > Flashcards

CONNECTIVE TISSUE -till bone Flashcards

1
Q

most abundant tissue

A

connective tissue

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2
Q

what does all cells of ct secrete and an exception

A

fibres , blood cells

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3
Q

types of cells

A 
fibroblast cell
macrophage 
mast cell 
adipose cell
plasma cell , cartwheel cell 
lymphocyte 
mesenchymal cell
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4
Q

description of fibroblast cell

A

most abundant , rich in rer , forms osteoblast and chondrioblast , chief matrix producing cell , secrete fibre ,centralised and spherical nucleus , branched , irregular

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5
Q

macrophages

A

phagocytic, scavenger cell, Rich in lysosomes , 2nd abundant , 2nd largest , kidney shaped nucleus

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6
Q

examples of macrophages

A 
brain-microglial cell
blood-monocytes 
lungs-dust cell
liver-kupffer cell 
Thymus -Hassels corpuscles 
Spleen - reticular cell
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7
Q

mast cell

A

s shapes nucleus , trilobed , irregular , like basophils of blood

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8
Q

what do mast cell secrete

A

Histamine , serotonin , Heparin

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9
Q

function of histamine

A

vasodilator, allergic and inflammatory response , amino acid derivative (histamine )

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10
Q

function of serotonin

A

vasoconstriction , at the site of injury , aa derivate (5-hydroxy tryptamine )

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11
Q

function of heparin

A

mucoploysaccharide , natural anticoagulant

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12
Q

adipose cell describe

A

store fat, oval shaped , secrete leptin hormone : regulates fat balance

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13
Q

types of adipose cell

A

monocular and multi ocular

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14
Q

plasma cell or cartwheel cell description

A

chromatin material in the wheel , factory of antibodies , clone of lymphocytes

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15
Q

mesenchymal cell

A

totipotent

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16
Q

lymphopcyte

A

amoeboid shape , large and spherical nucleus

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17
Q

types of fibres

A

collagen , elastin and reticular

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18
Q

differentiate between fibres

A

hydrolysed examples
collagen pepsin packing fibres
elastin trypsin Blood vessels
reticular proteolytic enzymes spleen, lymph node, payers patches

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19
Q

another name for reticular. fibres

A

arzyrophil fibres

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20
Q

special features of elastin protein.

A

resistant to chemicals and elasticity

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21
Q

types of connective tissue

A

loose ct-areolar and adipose
dense ct -WFCT AND YFCT
specialised ct- fluid and skeletal

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22
Q

loose connective tissue

A

fibreless
loose arranged
abundant matrix

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23
Q

describe areolar ct

A 
max. intercell space
irregular arrangement of fibres
macrophage , fibroblast , mast cell 
reticular fibre absent 
collagen fibre max.
elastic fibres few
function-support
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24
Q

examples of areolar ct

A

perimysium -covering of bundle of muscle fibres
endomysium-single muscle fibres
endoneurium-single nerve fibre
Tela subcutánea /Panniculus Carnossus -thin layer connecting skin to muscles
Sub-mucosa of trachea , bronchi and intestine

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25
Q

function of adipose ct

A

store fat

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26
Q

types of adiopose ct and description

A

brown fat - multiocular adipocytes

white fat -monoular adipocytes

27
Q

examples of brown fat and white fat

A 
brown fat-rat , shrew , hibernating mammals , new born 
white fat -blubber in whale 
hump in camel 
thick tail of marinosheep 
yellow bone marrow 
Panniculus  adiposus
28
Q

dense ct description

A

more fibres
less matrix
cell and fibres compactly arranged

29
Q

types of dense ct

A

regular -WFCT , YFCT

irregular -skin

30
Q

WFCT and YFCT fibres

A

wfct- collagen fibres
yfct-elastin fibres Max.
collagen fibres present

31
Q

cord of WFCT

A

collagen fibres and fibroblast

eg tendons

32
Q

cord of YFCT

A

elastin mostly and collagen

eg ligament

33
Q

sheath of WFCT

A 
regular manner 
eg. pericardium 
perichondrium
perisosteum 
covering of testis and ovary 
meninges 
cornea of eye 
Epimysium 
Glisson capsule 
Renal capsule
34
Q

sheath of YFCT

A

true vocal cord
wall of blood vessels
wall of alveoli
wall of bronchioles

35
Q

irregular dense ct

A

skin , made of collagen fibre and fibroblast cell

36
Q

other types of ct

A

reticular /lymphoid ct
mucoid ct
pigmented ct

37
Q

reticular /lymphoid ct

A 
reticular fibres , network structure , support and strength,
eg  payers patches 
lymph nodes 
spleen 
cortex pf ovary
38
Q

mucoid ct

A

embryonic ct , jelly like (Wharton’s jelly )
umbilical cord
vitreous humour

39
Q

pigmented ct

A

modified areolar ct
areolae- pigments present
eg iris, choroid , dermis of frog

40
Q

all types of chromatophores in pigmented ct

A

black - melanophores
white - guanophores
yellow -xanthophores

41
Q

types of skeletal ct

A

cartilage and bone

42
Q

brief description of cartilage

A

soft skeletal tissue
present in vertebrate embryo
outer covering of perichondrium (WFCT)

43
Q

cell of cartilage

A

chondrioblast
chondriocyte
chondrioclast

44
Q

function of chondrioblast

A

cartilage producing
flat , peripheral, round , small
divide to form osteocyte

45
Q

function of chondriocyte

A

present in lacuna , rounded
mature large cell
1-4 osteocyte in 1 lacuna

46
Q

function of chondrioclast

A

rich in lysosome and cartilage destroying

47
Q

function of matrix of cartilage

A

solid, pliable , avascular , blood passes only through perichondrium (double layered )

48
Q

matrix composed of

A 
proteoglycan (protein+ carbohydrates )
chondriotin protein (on boiling )->chondrin protein
49
Q

function of cartilage

A

provide rigidity and elasticity

50
Q

types of cartilage

A

hyaline cartilage
calcified cartilage
elastic cartilage
white fibrous cartilage

51
Q

hyaline cartilage

A

glass like matrix
most of the embryonic part -> embryonic cartilage
most common cartilage

52
Q

examples of hyaline cartilage

A

c shaped ring in trachea and bronchioles
nasal septum
coastal cartilage-> sternum part of ribs
most of the larynx-laryngeal cartilage
articular cartilage

53
Q

elastic cartilage

A

elastin fibres , elasticity , yellow fibres

54
Q

examples of elastic cartilage

A 
ear pinna 
Eustachian tube 
epiglottis 
tip of nose 
cartilage of Santorini (larynx )
55
Q

whit fibrous cartilage

A

perichondrium absent
white fibres present
strongest cartilage

56
Q

eg of white fibrous cartilage

A

intervertebral disc

pubis symphysis

57
Q

calcified cartilage

A

hardest cartilage , ca salts present in the form of Hydroxy apetite
that is Ca10 (PO4)6 (OH)2

58
Q

eg of calcified cartilage

A

head of femur

head of humerus

59
Q

hardest tissue

A

bone

60
Q

study of bone

A

osteology

61
Q

total no. of. bones

A

before birth 300
after birth 270
adult 206

62
Q

how many osteocyte in lacuna

A

1

63
Q

osteoclast rich in

A

acid phosphate and lysosome

64
Q

matrix of bone

A

hard, non-pliable

animal tissue (5 decks)

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