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26 Cards in this Set
- Front
- Back
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Lysosomes |
Small sacs of digestive enzymes digest substance within the cell |
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Vesicles |
small membrane bound sacs in the cytoplasm store materials and move materials into or out of the cell in bulk |
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Mitochondria |
Large organelles with internal folded membrane convert energy from nutrients into ATP |
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Tissues are groups of cells that are... |
Similar in structure |
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During development all tissues derive from - |
Stem cells |
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Some stem cells remain in each tissue |
Able to produce new cells that can differentiate into mature cells |
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Epithelial tissue: |
Closely packed cells, covers surfaces lined cavities forms glands membrane and ducts |
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Connective tissue |
Forms body's frame supportive usually widely spread but variable in a protein rich matrix |
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Matrix |
This intracellular background material contains varying amounts of water , protein,fiber |
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Nervous tissue |
Send signals neurons associated cell's involved in electrical signaling |
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Muscle tissue |
Closely packed cells that generate force produce movement |
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Classification by layers |
Simple=one layer |
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Class by layers |
Stratified= multiple layers |
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Pseudo stratified |
Looks like multi lawyers is only one layer |
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Classification by cell shape |
Squamous,cuboidal,columnar |
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Squamous |
Flat irregular cells in layers locations lining of mouth,throat anus ,vagina walk lungs air sacs |
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Columnar |
Columnar, long narrow cells in layer not common location some ducts larynx |
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Transitonal |
Square cells that flatten as they are stretched and then return to original shape |
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Goblet cells |
Are single celled endocrine glands that secrete mucus purposes trap particles in respitory tract lubricate and protect digestive tract |
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Exocrine glands |
Use ducts to deliver products to the interior of an organ or cavity or to the body surfaces Examples : salivary glands, sweat glands |
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Endocrine glands |
Secrete hormone into extracellular fluid ductless the bloodstream deliver them to other regions Examples adrenal gland and thyroid gland |
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Circulating CT |
Circulating ct (,Blood only form of liquid connective tissue,) and lymph. |
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Loose ct |
Areolar adipose |
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Dense ct |
Irregular,regular |
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Structural ct |
Cartilage,bone |
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Areolar |
Main cell type is fibroblast protein fibers include collagen and elastic fibers abundant in the body |
