this is in regards to action potentials.
they do not affect the membrane potential of neurons.
they increase in magnitude as they travel along an axon.
they can be measured by using electodes.
there is a loss in signal as they travel along an axon.
just doing basic web searhc i lean towards the "there is a loss in signal as they travel along an axon."
No, the signal is constantly replenished by the Voltage gated challels.
You can measure them with very small electrodes.
To determine the correct statement about action potentials, we can look into some basic knowledge about them.
Firstly, action potentials do indeed affect the membrane potential of neurons. An action potential is a rapid and brief change in the membrane potential of a neuron, which allows for the transmission of electrical signals along the axon. It is a result of the movement of ions across the cell membrane.
Secondly, the statement "they increase in magnitude as they travel along an axon" is not accurate. Action potentials are all-or-nothing events, meaning that once they reach a certain threshold level, they are of the same magnitude regardless of the distance they need to travel along the axon. The strength of the action potential is not dependent on its distance.
Thirdly, the statement "they can be measured by using electrodes" is correct. Action potentials can be measured by using small electrodes placed near or inside neurons. These electrodes can detect the electrical activity generated by the action potentials.
Lastly, the statement "there is a loss in signal as they travel along an axon" is incorrect. Action potentials propagate along the axon without any loss of signal. They are able to do so due to the presence of voltage-gated ion channels, which open and close in a sequential manner, reinitiating the action potential at each segment of the axon.
Therefore, based on the given statements and the explanations provided, the correct statement is "they can be measured by using electrodes."