HESI: HISTOLOGY Word Scramble
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Term | Definition |
NERVE CELLS | NEURONS |
Body of neuron | SOMA |
Carry info to soma | DENDRITES |
Send info from soma | AXON |
place where 2 neurons meet | SYNAPSE |
STEM CELLS | unspecialized, undifferentiated cells; great potential for regeneration |
Differentiate | to become more specialized |
HUMAN EMBRYONIC STEM CELLS | cells of developing embryos; differentiate into embryonic tissues |
4 Primary Tissue Types | Epithelial, Connective, Muscular, Nervous |
covers or lines parts of body e.g. outside skin or lining of digestive tract | Epithelial Tissue |
how epithelial layers adheres to underlying layers | Basement Membrane |
connects most superficial layer (Epidermis) to underlying DERMIS | Basement Membrane of Epidermis |
How is Epithelial Tissue Classified | Shape of Cells @ Free Surface; # of Layers Present |
CELL SHAPES | SQUAMOUS, CUBOIDAL, COLUMNAR |
CELL LAYERS | SIMPLE, STRATIFIED, PSEUDOSTRATIFIED |
FLATTENED CELL | SQUAMOUS |
SINGLE LAYER CELL | SIMPLE |
Cells Stacked in More Than One Layer | STRATIFIED |
Cells in 1 Layers (appears to be many layers) | PSEUDOSTRATIFIED |
cells are held together @specific regions | DESMOSOMES |
hold cells even more closely together | TIGHT JUNCTIONS |
connect 1 cell to another; allows ions & other solutes to pass from one cell to another; | GAP JUNCTIONS |
What do Gap Junctions allow? | COMMUNICATION |
MUSCLE TISSUE | cells contract & shorten in length |
cells of skeletal muscle | FIBERS |
STRIATED, VOLUNTARY | SKELETAL MUSCLE |
STRIATED, BRANCHED, INVOLUNTARY, INTERCALATED | CARDIAC MUSCLE |
NONSTRIATED, INVOLUNTARY | SMOOTH MUSCLE |
NERVOUS TISSUE | Tissue of brain, spinal cord, ganglia, & peripheral nerves |
Conductive Cells of Nervous Tissue | NEURONS |
NEURONS | receive & transmit electrochem impulses |
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