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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
function of adipose ct
store fat
26
types of adiopose ct and description
brown fat - multiocular adipocytes | white fat -monoular adipocytes
27
examples of brown fat and white fat
``` 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
dense ct description
more fibres less matrix cell and fibres compactly arranged
29
types of dense ct
regular -WFCT , YFCT | irregular -skin
30
WFCT and YFCT fibres
wfct- collagen fibres yfct-elastin fibres Max. collagen fibres present
31
cord of WFCT
collagen fibres and fibroblast | eg tendons
32
cord of YFCT
elastin mostly and collagen | eg ligament
33
sheath of WFCT
``` regular manner eg. pericardium perichondrium perisosteum covering of testis and ovary meninges cornea of eye Epimysium Glisson capsule Renal capsule ```
34
sheath of YFCT
true vocal cord wall of blood vessels wall of alveoli wall of bronchioles
35
irregular dense ct
skin , made of collagen fibre and fibroblast cell
36
other types of ct
reticular /lymphoid ct mucoid ct pigmented ct
37
reticular /lymphoid ct
``` reticular fibres , network structure , support and strength, eg payers patches lymph nodes spleen cortex pf ovary ```
38
mucoid ct
embryonic ct , jelly like (Wharton's jelly ) umbilical cord vitreous humour
39
pigmented ct
modified areolar ct areolae- pigments present eg iris, choroid , dermis of frog
40
all types of chromatophores in pigmented ct
black - melanophores white - guanophores yellow -xanthophores
41
types of skeletal ct
cartilage and bone
42
brief description of cartilage
soft skeletal tissue present in vertebrate embryo outer covering of perichondrium (WFCT)
43
cell of cartilage
chondrioblast chondriocyte chondrioclast
44
function of chondrioblast
cartilage producing flat , peripheral, round , small divide to form osteocyte
45
function of chondriocyte
present in lacuna , rounded mature large cell 1-4 osteocyte in 1 lacuna
46
function of chondrioclast
rich in lysosome and cartilage destroying
47
function of matrix of cartilage
solid, pliable , avascular , blood passes only through perichondrium (double layered )
48
matrix composed of
``` proteoglycan (protein+ carbohydrates ) chondriotin protein (on boiling )->chondrin protein ```
49
function of cartilage
provide rigidity and elasticity
50
types of cartilage
hyaline cartilage calcified cartilage elastic cartilage white fibrous cartilage
51
hyaline cartilage
glass like matrix most of the embryonic part -> embryonic cartilage most common cartilage
52
examples of hyaline cartilage
c shaped ring in trachea and bronchioles nasal septum coastal cartilage-> sternum part of ribs most of the larynx-laryngeal cartilage articular cartilage
53
elastic cartilage
elastin fibres , elasticity , yellow fibres
54
examples of elastic cartilage
``` ear pinna Eustachian tube epiglottis tip of nose cartilage of Santorini (larynx ) ```
55
whit fibrous cartilage
perichondrium absent white fibres present strongest cartilage
56
eg of white fibrous cartilage
intervertebral disc | pubis symphysis
57
calcified cartilage
hardest cartilage , ca salts present in the form of Hydroxy apetite that is Ca10 (PO4)6 (OH)2
58
eg of calcified cartilage
head of femur | head of humerus
59
hardest tissue
bone
60
study of bone
osteology
61
total no. of. bones
before birth 300 after birth 270 adult 206
62
how many osteocyte in lacuna
1
63
osteoclast rich in
acid phosphate and lysosome
64
matrix of bone
hard, non-pliable

Animal Tissue (5 decks)

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