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joselyne mukopi
human physiology
| Question | Answer |
|---|---|
| what is DNA | deoxyribonucleic acid- molecule carries genetic instruction |
| what is mitosis | process by which cell divides to produce identical daughter ells |
| what is repolarization | falling phase where neuron returns to node negative |
| what is action potential | a rapid temporary electrical changes in a neuron membrane that allows it to send a signal down the axon |
| Epidermis | the superficial, thinner layer |
| Sebaceous glands | secrete oil for the hair and skin. |
| . Dermis | the deep, thicker layer |
| Ceruminous glands | are a special variety or modification of apocrine sweat glands. |
| homeostasis | body maintaining stable environment |
| 2. Epiphyses | the proximal and distal ends of a long bone. |
| Diaphysis. | main shaftlike portion. Its hollow, cylindrical shape and the thick compact bone that composes it adapt the diaphysis well to its function of providing strong support without adding cumbersome weight |
| what is osmosis | movement if water molecules across a semi permeable membrane |
| Osteoblasts | are small cells that synthesize and secrete an organic matrix called osteoid |