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

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