Histology cycle 1
Histology Quiz Challenge
Test your knowledge of histology with this engaging quiz! Designed for students and enthusiasts alike, this quiz covers various aspects of epithelial tissue, cell junctions, and more. Challenge yourself and see how well you understand histological techniques and structures.
- Multiple choice and checkbox questions
- Covers a wide range of histology topics
- Easy to start and fun to take
Hematoxylin
Is a basic dye
Is a acidic dye
Stains the nucleus blue
Is able to selectively stain the nucleus
Which features are typical for epithelium/epithelial cells?
Vascularization
Polarity
Great amount of ECM
Possibility for regeneration
Location on basement membrane / basal lamina
No possibility for regeneration
Epithelium - areas
Esophagus - stratified cuboidal
Esophagus - stratified squamous
Trachea - pseudostratified columnar ciliated
Urinary bladder - transitional
Cornea - stratified cuboidal
Blood vessel - simple squamous
What is true?
Zonula occludens are located in the most upper part of the cell
Cadherin is present within zonula adherens
Every cell in stratified epithelium is connected by basal lamina
Connexons are associated with nexuses
Occludin and claudin are proteins involved in tight junctions
Which intracellular junctions are included to anchoring junctions?
Zonula adherens
Hemidesmosomes
Zonula occludens
Desmosomes
Tight junctions
In which type of junction occluding and claudin are characteristic and prominent?
These proteins are not associated with cell junction
Nexus
Zonula occludens
Zonula adherens
Aniline blue is typical staining method for:
Elastic fibers
Nucleus
Collagen fibers
Mitochondria
Ground substance
Match slide to structure
Hematoxylin blue - blue nucleus
Eosin - blue collagen fibers
Silver stain - black collagen fibers
Iron hematoxylin - black cardiac muscle
Wright and giemsa - staining of blood cells
In the core of microvilli you can find:
Intermediate filaments
Microfilaments
Microtubules
Dynein
Connexions
Connect pairs:
Simple squamous - skin
Pseudostratified ciliated - epididymal duct
Stratified squamous keratinized - esophageus
Transitional - renal calyces
Urothelium - urethra
What is true about cilia?
Stereocilium is long
The small intestine is additionally covered by glycocalyx
Are extensions of cytoplasm
Motile cilia contain the central pair of microtubules
Hemidesmosomes:
Is a kind of zonula occludens
Is responsible for junctions between basal epithelial surface and basal lamina
Is characterized by half a desmosome
Is a tight junction
Contains transmembrane integrins
Prevents migration of large molecules between cells
Simple squamous epithelium lines:
Sebaceous gland
Blood vessel
Esophageus
Goblet cell
Pleura
Peritoneum
Pericardium
Transitional epithelium
Is simple columnar epithelium
Is not located on a basal lamina
Changes form according to the degree of distention
Is present in the urinary bladder
Is stratified cuboidal/columnar epithelium
Is located on basal lamina
Which feature concerning myoepithelial cells of exocrine glands are true?
Are attached to the basal lamina by desmosomes
Can also be found around in the proximal ends of the duct system
Contain the actin-myosin complex
Are found inside the basal lamina
Apical surface modifications include:
Microvilli
Stereocilia
Flagella
Umbrella cells
Glycocalyx
Cilia
Villi
Epithelial tissue:
Is rich in ECM
Cilia is elongated, motile extensions pm the apical surface of cells
Exocrine glands maintain a connection to the outside
All epithelia are derived from mesenchyme
Is separated from CT by a basal lamina
Is composed of very closely packed cells, with little to no ECM
Goblet cells are unicellular, intraepithelial glands
Desmosomes are a kind of tight junction
Function includes absorption
Epithelial cells are morphologically dictated by their function
What is true about microvilli?
Small membrane projections with cores of actin filaments
Increases surface for absorption
Brush border
Glands:
An example of unicellular glands are goblet cells
Endocrine glands are ductless
In merocrine glands the secretory granules leave the cell by exocytosis
Glands develop from adipose tissue
Glands develop from connective tissue
Glands develop from epithelium
Holocrine glands:
Their examples are sebaceous glands
The cell is destroyed after release of the product
Their secretory granules leaves cell by exocytosis
Are always unicellular
Their cells are often surrounded by myoepithelial cells
An example is sweat gland
An example is mammary gland
The product is released with its apical part
What is true about holocrine secretion?
Is also called merocrine secretion
Sebaceous gland
Meiboidian gland
Consists in turning the entire cell into secretion and its excretion
Salivary gland
Gallbladder
Liver
What about the glands are correct?
Goblet cells are unicellular glands
Holocrine is sebaceous gland
Salivary glands are always seromucous
Exocrine glands derive from epithelium
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