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unit 3
written review
| Question | Answer |
|---|---|
| what are the 4 tissues | connective muscle nervous ' epithelial |
| what are the functions of connetive tissue | very diverse, protect, frame work and binding |
| what is a example of connective tissue | blood and bones |
| what are the functions of epithelial tissue | protect cover internal and external surfaces |
| what is a example of epithelial tissue | external: skin internal : organ covering |
| what are the functions of muscle tissue | movement and contraction |
| what is an example of muscle tissue | heart / smooth muscle |
| what are the functions of nervous tissue | conduct signal and impulse regulate function of the body |
| what is an example of nervous tissue | nerons |
| What is the mrna of A in dna sequence | U |
| What is the mrna of T in Dna sequence | A |
| What is the mrna of C in Dna sequence | G |
| What is the mrna of G in Dna sequence | C |
| What is produced by melanocytes in the skin | melanin |
| what are the two types of melanin and their pigments | pheomelanin ( red and yellow) eumelanin ( brown and black ) |
| explain albinism referring to melanocytes | lower number or no effective melanocytes |
| what glad produce oily substances | sebaceous Gland |
| what is the oily substance produced by sebaceous glands called | SEBUM |
| What is a membrane | A tissue with two layers that usually produce fluids to prevent friction between the layers |
| what are two examples of a membrane | connective and epithelial |
| what type of joints are freely movables and give an example | Diarthrosis joint ex: elbow and knee |
| synarthrosis | immovable joints ex: sutures |
| what type of joints slightly/partially movable and give an example | Amphiarthroses ex: pubis or ribs |
| True ribs | 1-7 connected directly to the sternum by costal cartilage |
| false ribs | 8-10 connected to rib 7 by costal cartilage |
| floating ribs | 11, 12 not connected to sternum nor costal cartilage |
| explain the appearance of stratified | stacked, several layers of cells |
| Explain the appearance of pseudostratified | gives a false appearance of layered cells but just a single layer |
| YO ASS BETTER BE FAMILIAR WITH THE BONES! | :) |
| DIAPHASIS | Cylinder shaped shaft of long bones |
| Epiphysis | The modified end of a long bone that are often covered with cartilage |