Connective Tissues Flashcards
Where are connective tissue cells mainly derived from
They are mainly derived from undifferentiated mesenchymal cells
What a connective tissues composed of
Cells such as fibroblasts, fibrocytes and adipose cells
Visible fibres such as collagen, elastic and reticulin
Ground substances such as proteoglycans, glycosaminoglycans, laminin and fibronectin
What are the different types of connective tissues with examples
Fibrous - loose and dense
Hard - cartilage and bone
Fatty - white and brown
Where do you find type I collagen
Skin
Where do you find type II collagen
Cartilage
Where do you find type III collagen
Liver, bone marrow and spleen
Where do you find type IV collagen
Basement membrane
Where do you find type V collagen
Placenta
What colour do extracellular fibres stain with H&E stain
Pink
What does loose connective tissue comprise of
Widely spaced thin collagen fibres
Fibroblasts/cytes
Unsteadiness ground substance
What does dense connective tissue comprise of
Closely spaced thick collagen fibres
Fibroblasts/cytes
Unstaffed ground surface
Can be regular or irregular
What type of collagen is reticulin
Type III collagen
What is the function of reticulin
Forms a supporting scaffold in many organs like bone marrow, liver, kidney, lymph node, spleen
What stain do you need to use to identify reticulin
Silver stain
What is a characteristic of white adipose tissue
Large cells with single fat globule in each cell
What is a characteristic of brown adipose tissue
Cells with many fat globules of fat in them
What is cartilage made up from
Cells such as chondroblasts and chrondrocytes
Extracellular matrix such as glycosaminglycans and proteoglycans
Extracellular fibres such as collagen and elastin
Is cartilage vascular or avascular
Cartilage is avascular
Where is hyaline cartilage found
Synovial joints
What are characteristics of hyaline cartilage
Chondrocytes in the lacunae surrounded by glassy amorphous matrix
No visible fibres
Perichondrium- fibroblasts and collagen
Where can elastic cartilage be found
Pinna
Epiglottis
What are characteristics of elastic cartilage
Visible elastic fibres in the matrix
Perichondrium- fibroblasts and collagen
Where can fibrocartilage be found
Annulus fibrous
Pubic symphysis
What are characteristics of fibrocartilage
Visible collagen fibres in the matrix
Perichondrium- finbroblasts and collagen
Where is synovium found
Lining the inside of the joint capsule
What is type A synovium found
Phagocytes
Where is in type B synovium located
Rich in the rough endoplasmic reticulum
What type of muscle is visceral muscle
Smoot
Where can visceral muscle be found
Arterial walls
Wall of intestines
Airways of the lungs
What type of muscle is voluntary muscle
Skeletal muscle
Where can voluntary muscle be found
Skeletal muscles
Larynx
Diaphragm
Where can cardiac muscle be found
Heart
Base of the great vessels
What are characteristics of smooth muscle
Involuntary
Fusiform cell shape
Central nuclei
No Striations
Non-branching
What tissue is this
Loose connective tissue
What tissue is this
Dense connective tissue
What is the tissue stained showing and what stain has been used
Reticulin
Silver stain
What tissue is this
White adipose tissue
What tissue is this
Brown adipose tissue
What is this
Hyaline cartilage
What is this
Elastic cartilage
What is this
Fibrocartilage
What is this
Synovium
What muscle is this
Smooth muscle
Where is this muscle
Wall of blood vessel
Where is this muscle
Tube of the intestine
Where is this muscle from
Bronchioles of the lung
