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26 Cards in this Set
- Front
- Back
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The bodily fluids |
Intracellular fluid - in cell Extracellular fluid - out of cell Interstitial fluid - between cells Plasma - carries nutrients in the blood |
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Aquaporins |
A protein channel that let's water in and out of the cell |
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Diffusion |
A net movement of solutes from a region of greater concentration to a region of lower concentration |
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Osmosis |
When water moves from an area of higher concentration to an area of lower concentration, only when a semi-permeable membrane is there. |
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Tonicity |
The effect of a solution on cell shape |
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Hypertonic |
The solution pulls out all of the water from a cell due to it's higher solute concentration |
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Hypotonic |
Water fills the cell and causes it to explode due to the cell having higher solute concentration |
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Isotonic |
Both the environment and the cell have the same concentration of solutes |
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Tissue |
An aggregation of cells performing a similar function |
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Histology |
The study of the microscopic structure of tissues |
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Four primary tissue types |
Epithelial Connective Muscular Nervous |
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Muscle tissue |
Made up of fibers that cause the cell to elongate or contract. Used for body movement, generate heat, and maintain posture. |
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Skeletal muscle |
Striated Moves bones and skin Generates heat |
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Cardiac muscle |
Fibers are connected by intercalated discs Movement of blood |
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Smooth muscle |
Spindle-like Controls blood flow and pressure |
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Neurons |
Have an axon and dendrite Found in brain, spinal cord and nerves |
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Neuroglia |
Supports neurons and help them function. |
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Epithelial tissue |
Cells that act like membranes for the body to interact with the environment. |
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Cellularity |
Cells packed together in an orderly fashion with little extracellular matrix |
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Avascular |
Does not have blood vessels |
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Simple squamous epithelium |
Single layer, flat appearance Filtration, diffusion and secretion of various substances |
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Simple cuboidal epithelium |
Single layer, cubed appearance In the kidneys and glands Absorption and secretion of various substances |
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Simple columnar epithelium |
Single layer tall cell, oval nucleus Stomach lining Secretion adsorption and moves cerebrospinal fluid |
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Stratified squamous epithelium |
Multiple layers, flat appearance Skin surface Protective barrier against abrasion |
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Transitional epithelium |
Changes shape, multiple cell layers Prevents distension |
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Pseudostratified ciliated columnar epithelium |
Illusions of multiple layers, cells have different heights Cilia move mucus Secret mucus |
