Connective tissue Flashcards
wk 4
What are the three types of tissue classification?
Proper, fluid and supporting
What is the common origin for all connective tissue classifications?
mesenchyme
what are the general functions of connective tissue?
TIPSES
Transport, insulation, protection, support, endocrine and storge of energy
What are the two types of connective tissue proper?
Loose and dense
Describe the structure of loose connective proper.
fewer fibres and more ground
What is the most important and common immature connective?
fibroblasts
What are the three types of loose connective proper cells?
Areolar, Adipose and Reticular
Describe dense connective proper cells.
More fibres but less ground substance
what are the three types of dense connective proper cells?
regular, irregular and elastic
What are the two types of supporting connective tissue?
Cartlidge and bone
What is the make up of cartilage vs bone?
semisold mamtrix vs solid matirx
What are the three types of Cartlidge?
Hylanie, Fibrocartlidge and elastic
What are the two types of bone?
Compact and spongy
What is the two (in some cases) types of fluid connection tissue?
Blood and in some books, plasma
What are the three types of immature cells?
Fibroblasts, Chondroblasts and Oesteoblasts
What does the suffix ‘blast’ refer to?
bud or sprout
What do immature cells do?
secrete the extracellular matrix and can proliferate (cell division)
What does the prefix ‘Chondro’ refer to?
Cartlidge
What does the prefix ‘oesto’ refer to?
bones
What type of tissue is Fibroblasts?
dense, loose and reticular (proper)
What are the five mature cells?
Firbocytes, Adipocytes, chondrocytes, osteocytes and erythrocytes
What are the two supporting connective tissues in mature cells?
osteocytes and chondrocytes
What are the two connective tissue proper mature cells?
Fibrocytes and adipocytes
What is Erythrocytes?
Blood-fluid connective tissue
What are the two cell types in ECM?
Protein Fibres and Ground Substance
What are the three types of fibres in the Protein fibres of ECM?
Collagen, Elastic and reticular
What do ground substances consist of?
Water and organic molecules
What are the functions of ground substances?
Support cells and allow substances to be exchanged.
What can the structure of the ECM be?
Gelatinous, fluid, semifluid and calcified?
What are the functions of the ECM and what are they determined by?
Supports cells, binds cells, allows for exchange and stores water. By the structure.
What do ligaments connect?
bone to bone
what do tendons connect?
Muscle to bone
What is the structure of Areolar proper connective tissue?
Fibre- collagen, elatic and reticular
cells0- fibroblasts, adipocytes, marcophages, mast cells, plasma cells and leukocytes
what is the function of Areolar connective proper cells?
Elasticity, support and strength
Where is Areolar connective proper?
Most connective tissues, anchors most epithelial
What is the structure of Adipose connective proper?
Adipose cells from fibroblasts
Have fat droplets that pushes nucleus to cytoplasm
What is the function of Adipose connective proper?
insulation, energy source and protection of organs
where is Adipose connective proper found?
Fats and subcutaneous layer of the skin
What is the structure of reticular connective proper?
Fibres - reticular
Cells - Reticular (fibroblast)
What is the function of reticular connective proper?
Provides support framework (stroma)
Binds to smooth muscle and filters the blood in spleen
Where is reticular connective proper?
liver and spleen
What is the structure of regular connective proper?
Fibres layed in direction to give strength
Cells - Fibroblasts
Fibres - Collagen
What is the function of regular connective proper?
Strong attachments between structures
where is regular dense connective fibre found?
ligaments, tendons
what is the structure of irregular dense connective fibre?
Cells -Fibroblasts
Fibers - Mostly collagen (irregularly aranged)
what is the function of irregular dense connective fibre?
tensile strength
what is irregular dense connective fibre found?
skin
what is the structure of elastic dense connective fibre?
cells- fibroblasts
fibres- elastic (mostly)
what is the function of elastic dense connective fibre?
strength and ability to recoil
where are elastic dense connective fibres found
Aveoli
Arteries- take pressure so pulsate
What is the structure of hyline?
Cells -Chondrocytes (maintains) and Chondroblast (building)
Fibre - Fine collagen
What is the function of hyaline?
reduces friction, shock absorption and is flexible
Where is hyaline mostly found?
joints
What is the structure of Fibrocartilage?
Cells - Chondrocytes and Chondroblast
Fibres - Thick buldge of collagen
what is the function of fibrocartlidge?
Joins surfaces together, support and strength
where is fibrocartilage mostly found?
Intervertebral disc
What is the structure of elastic supporting tissue?
Cells -Chondrocytes
and Chondroblasts
Fibres - Network of elastic fibres
what is the function of elastic supporting connective tissue?
Very flexible so allows cell to retain its shape
where can elastic tissue be found?
ear and voice box
What is the general structure of bones?
Cells -Osteoblasts
and Osteocytes
Fibres - Collagen
What are the functions of bones?
Protection, support, movement, storage and housing of blood producing tissue
What are the two types of bones?
Compact and cancellous (spongy)
what is the structure of compact bones?
Collagen fibres (gives it tensile strength)
Osteons -Concentric lamellae, Interstitial lamellae , Circumferential lamellae , Harversian (CENETRAL) canal , Volkman (perpendicular)
Canal
Where is compact bone found?
outside of the bone
where is cancellous bone found?
inside the bone
What is the structure of cancellous bone?
Trabecular
Parallel lamellae