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SANDY VINALAY
Week 14: Assignment - StudyStack Set 2
| Question | Answer |
|---|---|
| The active transport mechanism in the plasma membrane that transports sodium and potassium ions in opposite directions and at different rates is the | sodium-potassium pump. |
| The fastest nerve fibers in the body can conduct an impulse that is how much faster than the slowest fibers in the body? | Almost 300 times faster |
| Which of the following statements about amino acid neurotransmitters is incorrect? | They are all inhibitory neurotransmitters. |
| The vomiting reflex is mediated by the: | medulla. |
| What would the result be if the phrenic nerve received an impulse from the cervical plexus? | The diaphragm would stop contracting. |
| All of the following are examples of parasympathetic stimulation except: | increased heart rate. |
| Which of the following is not a characteristic of the endocrine system? | Chemical messenger travels a short distance. |
| The olfactory tract carries impulses associated with: | smell. |
| The last step in the nonsteroid hormone mechanism of action is: | protein kinases activate other enzymes. |
| The chemoreceptors in the carotid bodies are particularly sensitive to: | hypercapnia. |