Connective tissue Flashcards
Are there non-roaming macrophages in connective tissue?
Yse, these are fixed macrophages and are permanent residents of their tissues
Where is trabecular bone found?
In the interior of some bones and at the end of long bones
How are blood and lymph fluid connective tissues?
Cells circulate in a liquid extracellular matrix containing nutrients, salts, and wastes
Give two examples of dense connective tissue
Regular elastic and irregular elastic
What do ‘free’ macrophages do in connective tissue?
Move rapidly through the matrix engulfing infectious agents and cellular debris
Which has a greater resistance to stretching, loose or dense connective tissue?
Dense connective tissue
What would bones be like without the inorganic phase (mineral crystals)?
Able to flex, provide little support
What are adipocytes?
Cells that store lipids as droplets that fill most of the cytoplasm
Fibroblasts and adipocytes are ____ cells
Fixed
Which fibres are the most numerous?
Collagenous
Specialised connective tissues include which two tissue types?
Supportive and fluid connective tissues
What does ‘fixed cells’ mean?
The cells remain within the connective tissue
What is the effect of bone having organic and inorganic phases?
The combination makes bone hard and flexible at the same time
The function of a particular connective tissue correlates with the amount of what things in that tissue?
Cells, ground substance, and fibres
____ stem cells are commonly found in connective tissues
Mesenchymal
Give three examples of loose connective tissue
Areolar, adipose, and reticular
How do adipocytes apprear in stained sections?
Large white circular cells
What type of stain readily blackens reticular fibres?
Silver stains
Name a type of wandering cell that enters connective tissues (aside from macrophages)
Lymphocytes
Bone contains a relatively small number of ____ entrenched in a matrix of ____ fibres
Cells; collagenous
A few distinct ____ types and ____ packed fibres in a matrix characterise supportive connective tissue
Cell; densely
What makes fibrocartilage tough?
Thick bundles of collagenous fibres dispersed through its matrix
Elastic fibres contain which protein?
Elastin
What are the subcategories of connective tissue proper?
Loose connective tissue and dense onnective tissue