connective tissue Flashcards
What is the most common form of connective tissue?
Areolar tissue
Main Functions of connective tissue
Structural frame work of the body Transport fluids and dissolve materials Protect delicate organs Store energy Defend body from invading micro organisms
Function and location of adipose tissue
Third layer of skin (hypodermics)
Fat cells
Store lipid reserves in large intracellular vesicles
Function and location of Reticular tissue
Found in liver/kidney/spleen/lymph nodes/bone marrow
Provides support and resists distortion
Name fibres found in loose connective tissue
Reticular - strong, spiderwebby branch network
Collagen - thick, wavy or straight, resist stretching
Elastic - slender, unbranching, very stretchy, recoil to original length after stretching or distortion
Name wandering cells in loose connective tissue
Plasma cell - produces antibodies
Free macrophages - patrol tissue, engulfing debris or pathogens
Lymphocytes - mobile cells of immune system
Mesenchymal - mobile stem cell, participate in the repair of damaged tissue
Neutrophils & eosinophils - small phagocytic blood cells that enter tissues during infection/injury
Name Fixed cells in loose connective tissue
Melanocytes - pigment cell that synthesises melanin(TAN!) yellow/brown pigment
Fixed macrophage - stationary phagocytic cell, engulfs cell debris and pathogens
Mast cells - stimulate local defences and mobilize tissue defences
Fibroblasts - synthesis extra cellular fibres of connective tissue
Adipocytes(fat cells)
Describe reticular fibre
strong, spiderwebby branch network
Describe elastic fibre
Slender, unbranching, very stretchy, recoil to original length after stretching or distortion
What do plasma cells produce in loose connective tissue
produces antibodies
What is the function of Free macrophages in connective tissue
patrol tissue, engulfing debris or pathogens
What are Lymphocytes?
mobile cells of immune system
What are Mesenchymal and what do they do?
mobile stem cell, participate in the repair of damaged tissue
What are Neutrophils & eosinophils and what is their function in loose connective tissue?
small phagocytic blood cells that enter tissues during infection/injury
What are Melanocytes?
are they fixed or wandering cells in connective tissue?
pigment cell that synthesises melanin(TAN!) yellow/brown pigment
Fixed!
