Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
|
What are the procedures used to prepare tissues?
|
1) Fixation
2) Dehydration and clearing 3) Embedding 4) Sectioning 5) Mounting and Staining |
|
|
What is the diameter of an RBC?
|
~7.5 microns
|
|
|
What is a common basic stain used in LM?
|
Hematoxylin
|
|
|
What sort of structures will hematoxylin stain blue?
|
Acidic Structures
Ex: DNA, RNA |
|
|
What is a common acidic stain used in LM?
|
Eosin
|
|
|
What sort of structures will eosin stain pink?
|
Basic Structures
Ex: Cytoplasm |
|
|
What does the term "acidophilic" mean?
|
Acid lover. Substances that are acidophilic will stain pink when eosin is added.
|
|
|
What does the term "basophilic" mean?
|
Base lover. Substances that are basophilic will stain pink when hematoxylin is added.
|
|
|
What is an acinus?
|
A small cluster of cells. Typical configuration in the pancreas.
|
|
|
What are the four tissue types?
|
1) epithelia
2) connective tissue 3) muscle 4) nervous tissue |
|
|
What are some major characteristics of epithelia?
|
1) Line surfaces
2) Avascular 3) Lie upon basal lamina 4) Demonstrate polarity 5) Often have surface specializations |
|
|
What are some functions of epithelia?
|
1) Protection
2) Transcellular transport 3) Secretion 4) Absorption 5) Selective permeability 6) Detection of sensations |
|
|
What are the three types of epithelia?
|
1) Epithelium
2) Mesothelium 3) Endothelium |
|
|
Where do you find epithelium?
|
Lines surfaces exposed to the outside world
|
|
|
Where do you find mesothelium?
|
Lines body cavities
|
|
|
Where do you find endothelium?
|
Lines blood vessels
|
|
|
Where are stereocilia found?
|
In the epididymis and hair cells of cochlea
|
|
|
What is an axoneme?
|
The 9 + 2 configuration of microtubules in cilia.
|
|
|
What is the function of the zonulae occludens?
|
Belt-like junction betweens cells that separates the luminal space from the intercellular space. Tight junction.
|
|
|
What is the function of the zonulae adherentes?
|
Belt-like junction. Functions in adherece of adjoining cells.
|
|
|
What is another name for desmosomes?
|
Maculae adherentes
|
|
|
What is the function of desmosomes?
|
Spot welds. Resist shearing forces.
|
|
|
What is the function of a gap junction?
|
Regions of intercellular communication.
|
|
|
What anchors the basal layer of an epithelial cell to the basal lamina?
|
Hemidesmosomes
|
|
|
What is the definition of carcinoma?
|
Malignancy of the epithelia
|
|
|
What is metaplasia?
|
The transformation of a cell to another type.
|
