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physiology
understanding physiology set #2
| Question | Answer |
|---|---|
| when does the magnitude of the action potential peak? | when the sodium channel closes. |
| which membrane receptor acts to directly change ion permeability when stimulated | Gated-channel receptor |
| what nervous system does the somatic and autonomic pathway belong to? | The peripheral nervous system |
| The cerebellum acts with what? to produce skilled movement | The cerebrum |
| where is the apex of cochlea located? | the very tip or innermost end of the spiral-shaped cochlea |
| What are the two circulations in the body? | Pulmonary circulation and systemic circulation |
| Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells know as what? | erythroblast |
| what is the lymphatic system? | A network of vessels, lymph nodes, organs, and tissues that maintain fluid balance, protect the body from infection, and support the immune system. |
| What are lymph nodes functions? | Defense and hematopoiesis |
| External respiration can be defined as what? | the exchange of gases between the lungs and the blood capillaries in the lung, and pulmonary ventilation. |
| The hormone thought to be a messenger causing release of digestive enzymes from the intestinal mucosa is: | vasoactive intestinal peptide. |