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macrophages are_____ type of cell
motile phagocytic cells
find canaliculli, osteocytes, lacunae, central canal,
5 layers of epidermis
- 1) stratum corneum
- 2) stratum lucidium
- 3) stratum granulosum
- 4) stratum spinosum
- 5) stratum basale
list 3 type of tissue that compose bone
- 1) connective tissue
- 2) osseous tissue
- 3) nervous tissue
3 primary germ layers of embryonic tissue
- 1) ecoderm (outer): nervous
- 2) meoderm: mesenchyme (middle): membrane
- 3) endoderm (inner)
3 functions of epithelial cells
- 1) protection
- 2) absorption/controm permeability.
- 3) secretion
3 functions of connective tissue
support, bind, protect
list 2 types of nervous tissue
neuroglia and neurons
what are neurosomes
houses nucleus and other organelles
list 3 types of tissue growth
- 1) hyperplasia: cell multiplication
- 2) hypertrophy: cell enlargement
- 3) neoplasia: tumor development
methods of cell changing to other cells
- 1) differentiation (e.g. mesenchyme to musscle)
- 2) metaplasia (e.g. smoker pseudostratified columnar epithelium to simple squamous epithelium).
methods for tissue repair
- 1) regeneration: replacing dead w/same type.
- 2) fibrosis: replacing damaged cells w/scar tissue
types of tissue degeneration & death
- 1) atrophy: shrinking tissue through lost cells.
- 2) necrosis: premature cell death (e.g. gangrene, infarction)
- 3) apoptosis: programmed cell death (phagocytized by macrophages)
anatomical difference between secretion and excretion
secretion=duct, excretion=no duct
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