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(SALMA) Histology Formative Questions > imms histology > Flashcards

imms histology Flashcards

1
Q

what does alcian blue stain mucins as

A

blue

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2
Q

what does H&E stain the nuclei n cytoplasm

A

nuclei blue

cytoplasm pink

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3
Q

what colour does PAS stain sugars

A

deep magenta

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4
Q

what is another word for spindle-shaped

A

fusiform

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5
Q

which type of muscle cells are spindle shaped

A

smooth muscle

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6
Q

what does columnar shape refer to

A

epithelial cells taller than wide

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7
Q

what does squamous shape refer to

A

flattened plate-like cells

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8
Q

what does polygonal shape refer to

A

irregular

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9
Q

what is the life span of rbc

A

120d

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10
Q

what is the life span of enterocytes (line gut)

A

4-5d

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11
Q

what is the lifespan of bone n tendon cells

A

years

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12
Q

what is the lifespan of myocardial and neuroscience cells

A

entire life

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13
Q

what is chromatin

A

DNA wound around histone proteins

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14
Q

what must happen to chromatin in order for it to be transcribed

A

must become decondensed

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15
Q

what is diff btwn heterochromatin n euchromatin

A

heterochromatin - DNA remains permanently condensed n never expressed (tightly coiled)

euchromatin - becomes decondensed some time in the life cycle of the cell (transcription)

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16
Q

what is the function of the nucleolus

A

DNA transcription ( to prod ribosomal RNA)

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17
Q

where does Krebs take place

A

mitochondrial matrix

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18
Q

where does lipid synthesis and fatty acid metabolism occur

A

outer membrane of mitochondria

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19
Q

where does reps chain n ATP prod occur

A

inner mitochondrial membrane

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20
Q

where does nucleotide phosphorylation (ADP –> ATP) occur

A

intermembranous space

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21
Q

what is a peri-nuclear Hoff caused by (in a plasma cell - pale area)

A

Golgi body

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22
Q

what is the function of RER

A

site of protein synthesis

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23
Q

where is membrane lipid formed

A

smooth ER

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24
Q

what does Golgi apparatus do

A
  • forms complex oligosaccharides
  • protein phosphorylation
  • proteolysis
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25
what does actin form
microfilaments (5nm in diameter)
26
what does tubulin form
microtubules (25nm in diameter)
27
what is the diameter of intermediate filaments
10nm
28
which intermediate filament is predominantly found in muscle
desmin
29
where is rhodopsin found
retina (it's a pigment)
30
what is haemosiderin
iron-containing brown pigment
31
what are some types of supporting tissues
cartilage bone tendons blood
32
what are some functions of epithelia (3)
protection absorption secretion
33
what type of epithelium are blood vessels
simple squamous
34
which epithelium lines inside of blood vessels
endothelium
35
which epithelium lines outside of lungs
mesothelium
36
which epithelium lines abdominal organs
peritoneum
37
do the small intestines have microvilli or cilia
microvilli
38
what kind of epithelium do the trachea n fallopian tube have
lined by ciliated columnar epithelium
39
what is resp epithelium like
pseudostratified columnar ciliated epithelium
40
which 2 proteins are involved in generation of ciliary movement
tubules | dynein
41
are collagen and elastin contractile or non contractile proteins
non contractile
42
are actin and myosin contractile or non contractile proteins
contractile proteins
43
where are the basal cells present against
basement membrane
44
what is the dead keratin layer
stratum corneum
45
what is the keratohyaline granule layer
stratum granulosum
46
where does the dermis lie
below the basement membrane
47
what do hemidesmosomes bind
basal cell layer to the basement membrane
48
a gland secreted by shedding individual cells. what type of secretion
holocrine
49
what is it called when the cell products are released by exocytosis from apical cell surface
merocrine secretion
50
name 3 types of exocrine secertion
apocrine merocrine holocrine
51
what is endocrine secretion
release of products from the cell base into the blood stream
52
which cells produce collagen and elastin
fibroblasts
53
what are the visible fibres in extracellular material
collagen elastin reticulin
54
what type of fibres are fibronectin and laminin
invisible fibres
55
what 2 things form the ground substance
glycosaminoglycans | proteoglycans
56
where is type V collagen prevalent
placenta
57
where is elastic cartilage found
epiglottis | pinna of ear
58
where is fibrous cartilage found
symphysis pubis | IVD
59
what type of cartilage is the knee joint
hyaline
60
what is white adipose tissue like
single large non-membrane-bound globules of lipid in each cell pushing nuclei to celle edges
61
what do brown adipocytes have
multiple fat globules
62
where is brown adipose tissue abundant
neonates
63
where is brown adipose tissue found in neonates
neck back around aorta around kidneys
64
where is brown adipose tissue found in adults
btwn shoulder blades
65
how does brown adipose tissue play a role in thermo-regulation
by producing heat through metabolism of fat
66
what is dense regular collective tissue characterised by
all collagen fibres running in the same orientation (leg and tendons)
67
what kind of connective tissue does penile fascia have
dense irregular connective tissue
68
what kind of connective tissue does artery adventitia have
loose irregular connective tissue
69
what kind of connective tissue does dermis have
dense and loose irregular connective tissue
70
what is penile erectile tissue like
numerous blood vessels | dense irregular fibrous CT bounded by a dense irregular fibrous CT fascia
71
what does elastic cartilage look like histologically
pale faintly basophilic EC matrix that contains elastin fibres, with entrapped chondrocytes
72
where is smooth muscle found
walls of blood vessels walls of airways in walls of gut, ureters, vas deferent etc
73
what layer of the uterus does smooth muscle form
muscular layer (myometrium)

(SALMA) Histology Formative Questions (6 decks)

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