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Human Anatomy by Michael Mckinley 2nd edition


Composed of RNA and protein. Actual sites of protein synthesis. Synthesize proteins for: 1. use in the cell (free ribosomes) 2. secretion, incorporation into plasma membrane, or lysosomes (fixed ribosomes)


Composed of microfilaments, intermediate filaments and microtubules. Provides structural support; facilitates cytoplasmic streaming, organelle and cellular motility, transport of materials, and chromosomal movement in cell division.


Organize microtubules during cell division for movement of the chromosomes


Move fluid, mucus and materials over the cell surface


Propels sperm cells in human male


Increase membrane surface area for increased absorption and/or secretion

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