Histology MCQs/Mock Credit Test A

Leonid Pasternak (1862-1945): Night Before Exam

Mock credit test. Only one answer is correct, minimal score is 18 points.

1

Which of following techniques can be used as a staining for a connective tissue?

Silver impregnation
Masson’s trichrome
PAS reaction
orcein

2

Which structure is stained by Feulgen’s reaction?

polysaccharides
lipids
DNA
RNA

3

Intermediate filaments:

we have more than 50 of different intermediate filaments
they are often associated with motor proteins
main structural proteins are cytokeratins
main structural protein is actin

4

Kinesins:

are motor proteins associated with microfilamens
are motor proteins associated with microtubules
are type of microtubules
are type of mikrofilaments

5

Cytokinesis:

is a cell movemet mediated by cillia
is final stage of mitotic divison
is an amoeboid movement of cells
is a kind of cell death

6

Lipofuscin:

is mainly inside cells with high growth-rate
is an extracellular crystalic material
is an intracellular waste product
is used for production of mucus

7

Mucus (mucinous) cells:

have round nucleus with prominent nucleolus
their product is PAS positive
are also inside pancreas
produce mainly enzymes

8

Basal annealing:

its main function is thigt anchoring to the basal membrane
is common in all epithelial cells
contains numerous mitochondria
contains numerous ribosomes

9

Brush border:

main supportive structure are intermediate filaments
is composed of crists (see anatomy ;-) and undulations
takes place on apical pole of some epithelial cells
is composed of cillia

10

Desmosome:

is responsible for mechanical cohesivity
is not associated with the cytoskeleton
anchors the cell to the basal membrane
is a long belt-like structure

11

Kinocilia (cilia):

they are on cells of pseudostratified epithelium of respiratory passages
their supportive structure are intermediate filaments
one cell can have only one cillium
are immotile

12

Which cell adhesion does not take place in the intercalated disc?

zonula occludens
fascia adherens
gap junction
desmosome

13

Heparinocytes:

are fixed cells of connective tissue
usually have two or three nuclei
produce heparine and histamine
produce antibodies

14

Fibrocartillage:

fibrillar component of its ECM contains type I collagen
is main cartillage of articular cartillages
has pronounced perichondrium
is highly vaskularized

15

Elastic fibers:

are clearly visible in slides stained with basic techniques
can be stained with aldehyde fuchsin
can be stained with alcian blue
are PAS positive

16

Osteoclast:

its nucleus has wheel-like arranged chromatin
is a multinucleated cell
is activated osteocyte
produces osteoid

17

Secondary bone is:

woven
spongy
compact
lamellar

18

White adipose tissue:

adipocytes have usually short life-span
its main function is heating
adipocytes are unilocular
is avascular

19

Glycoproteins:

contain usually glycogen
contain usually hyaluronic acid
contain usually oligosaccharides
contain usually glycosaminoglycans

20

Which protein is main protein of reticular fibers?

collagen I
collagen II
collagen III
collagen IV

21

Loose connective tissue is main material of:

subepithelial layer of mucosa
organ capsulla
dermis
tendon

22

Myofibrils:

are inside smooth muscle cells
are composed of sarcomeres
are type of cytoskeleton
contain calmodulin

23

Tropomyosin:

increases mechanical stiffness of the muscle
is storage of energy in the mucle fibre
prevents binding of myosin to actin
binds calcium

24

Glial cells:

protoplasmic astrocytes have wide processes
fibrillary astrocytes are mainly in gray matter
oligodendrocytes do not have processes
myelin is produced by mikroglia

25

Neurons:

action potential begins in initial segment (hilus) of the axon
GFAP is an immunohistochemical marker of neurons
neurons have no more than one dendrite
neurons are mitoticaly active

26

Which type of epithelium is most probably on the schema?

stratified squamous with keratinization
pseudostratified columnar
simple columnar
none of above mentioned

27

Eosinophils:

their percentage in the blood (inside vessels) is about 40-60 %
specific granules contain main basic protein (MBP)
contain metachromatic granules
have small round nucleus

28

What is not true for monocytes?

they are the biggest blood (inside vessels) cells
they are main players of humoral immunity
they contain azurophilic granules
they give rise macrophages

29

Red bone marrow:

medullary period of hematopoiesis starts after the birth
takes place inside cavities of some long bones only
its stroma contains reticular connective tissue
contains plenty of adipocytes

30

Retikulocyte:

is not in the peripheral blood
has long branching processes
its cytoplasm is basophilic
has no nucleus