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30 Cards in this Set
- Front
- Back
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Atoms combine to form... |
Molecules |
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Molecules interact to form... |
Cells |
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Cells and extracellular material and fluid combine to form... |
tissues |
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What are the four types of tissues? |
Connective Tissue, Epithelial Tissue, Muscle Tissue, Neural Tissue |
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Tissues are... |
Cell and cell products working together to preform specialized functions |
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The study of tissues is... |
Histology |
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Microscopy: |
The use of microscopes |
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When did microscopy begin |
400 years ago |
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Simple Microscopes |
Microscopes with 1 lens |
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Compound microscopes |
Microscopes with more than one lens |
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Resolution |
The amount of fine detail that can be seem in an image |
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Resolution varies with |
Magnification and the type of microscope |
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Light microscope |
uses visible light to see a thin section of tissue |
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The ability to distinguish between two separate points or objects |
Resolution |
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Transmission Electron Microscope |
uses magnets to direct a beam of electrons |
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Scanning Electron Microscope |
Specimen is coated with an electron dense material, and then bombarded with electron beams |
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Two types of Epithelial tissue |
Epithelia and Glands |
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Two types of glands |
Endocrine and exocrine glands |
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Endocrine gland function |
secrete hormones into the interstitial fluid / directly into the blood stream |
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Exocrine gland functon |
secrete onto external surfaces or into internal passages that connect to the exterior |
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Functions of Epithelial Tissue |
Provide Physical protection Control permeability Provide Sensation Produce specialized secretions |
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Epithelial cells that produce secretions |
Gland cells |
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Apical Surface |
top of the cell that faces the exterior of the body |
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Base |
attached to adjacent tissues |
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Polarity |
Structural and functional differences between exposed and attached surfaces |
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Microvilli are often |
line internal passage ways of the digestive, urinary, and reproductive tract |
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Motile cillia are often |
found in portions of the respiratory and reproductive tracts |
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Membranous organelles that most epithelial cells have |
Mitochondria, Nucleus, Endoplasmic Reticulum, and Golgi Apparatus |
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The space in side a tube |
lumen |
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Basolateral Surface |
Combination of the base and the sides |
