BIOL 3301 EXAM QUESTIONS AND ANSWERS
LATEST UPDATE (GRADED A+)
Mesenchymal Cells
embryonic stem cell
divides to replace damaged cells
Fixed Macrophages
relatively large cells
derived from monocytes
throughout matrix
phagocytize damaged cells or pathogens
release chemicals that stimulate immune system/attract wandering cells
Mast Cells
along blood vessels
produce histamine
dilates small blood vessels during inflammation
Wandering Cells
components of immune system
leukocytes
move through CT
repair damaged extracellular matrix
protect body from harmful agents
Protein Fibers
collagen fibers
reticular fibers
elastic fibers
Ground Substance
molecular
viscous, semisolid, solid
Extracellular Matrix CT
ground substance and protein fibers
Glycosaminoglycans (GAGs)
polysaccharide with amine groups attached
hydrophilic-attracts positive ions, water follows
regulate viscosity
, Proteoglycans
many GAGs linked to protein
Glycoproteins
proteins with carbs attached
bond CT cells and fibers to ground substance
Mesenchyme
embryo and fetus
origin for all other CT types
Mucous CT
wharton's jelly
umbilical cord
Lymph CT
derived from blood plasma
returned to bloodstream
Cell Body of Neuron
houses nucleus and other organelles
Dendrites
shorter and more numerous
receive incoming signals and transmit information
Axon
single long process
carries outgoing signals to ther cells
Mucous Membrane
lines compartments open to external environment
absorptive, protective, secretory
lamina propra
Synovial Membrane
areolar CT
squamous epithelial cells lacking basement membrane
Stages of Tissue Development
oocyte fertilized by sperm
forms zygote
blastocyte
LATEST UPDATE (GRADED A+)
Mesenchymal Cells
embryonic stem cell
divides to replace damaged cells
Fixed Macrophages
relatively large cells
derived from monocytes
throughout matrix
phagocytize damaged cells or pathogens
release chemicals that stimulate immune system/attract wandering cells
Mast Cells
along blood vessels
produce histamine
dilates small blood vessels during inflammation
Wandering Cells
components of immune system
leukocytes
move through CT
repair damaged extracellular matrix
protect body from harmful agents
Protein Fibers
collagen fibers
reticular fibers
elastic fibers
Ground Substance
molecular
viscous, semisolid, solid
Extracellular Matrix CT
ground substance and protein fibers
Glycosaminoglycans (GAGs)
polysaccharide with amine groups attached
hydrophilic-attracts positive ions, water follows
regulate viscosity
, Proteoglycans
many GAGs linked to protein
Glycoproteins
proteins with carbs attached
bond CT cells and fibers to ground substance
Mesenchyme
embryo and fetus
origin for all other CT types
Mucous CT
wharton's jelly
umbilical cord
Lymph CT
derived from blood plasma
returned to bloodstream
Cell Body of Neuron
houses nucleus and other organelles
Dendrites
shorter and more numerous
receive incoming signals and transmit information
Axon
single long process
carries outgoing signals to ther cells
Mucous Membrane
lines compartments open to external environment
absorptive, protective, secretory
lamina propra
Synovial Membrane
areolar CT
squamous epithelial cells lacking basement membrane
Stages of Tissue Development
oocyte fertilized by sperm
forms zygote
blastocyte
