A scientist stimulates an axon two times within fifteen milliseconds. When measuring voltage changes on the other end of the axon, they only see one action potential. Why does this happen?
1. The membrane does not have enough time to return to its resting potential, and so no action potential can be initiated.
2. Voltage-gated Na+ channels are still inactivated after the first action potential, and so a second action potential can not be initiated.
3. Na+/K+ pumps are actively pumping Na+ out of the axon, which prevents the axon from reaching threshold.
4. Voltage-gated K+ channels are opposing the flow of current from the electrode, preventing the axon from reaching threshold.
Answers: 2
Other questions on the subject: Biology
Biology, 21.06.2019 21:30, lkipjjjjjjjjjj5673
What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.
Answers: 1
Biology, 22.06.2019 07:00, Bengynease2598
An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?
Answers: 3
Biology, 22.06.2019 08:30, janely6017
The image below shows a weather service map. which details best describe this map? check all that apply
Answers: 1
Biology, 22.06.2019 13:20, danidavis2002
Which cell organelle is the site for photosynthesis? a. chloroplast b. endoplasmic reticulum c. golgi apparatus d. lysosome
Answers: 1
Do you know the correct answer?
A scientist stimulates an axon two times within fifteen milliseconds. When measuring voltage changes...
Questions in other subjects:
Mathematics, 31.10.2019 19:31
Mathematics, 31.10.2019 19:31
