Question

Ramesh was walking in a moonlit night and looking at a lamp post. As he was approaching
the lamp post, the intensity of the brightness of the light was increasing. When the intensity of
the brightness of the light increased, the size of the action potentials of the neurons involved

A. Increased
B. Decreased
C. First increased and then decreased
D. Remained the same​

Answer 1

Answer:

The answer is option 1 increased

Answer 2

Option A) Increased

Ramesh was walking in a moonlit night and looking at a lamp post. As he was approaching the lamp post, the intensity of the brightness of the light was increasing. When the intensity of the brightness of the light increased, the size of the action potentials of the neurons involved.

• Instead, there is an increase in the frequency or quantity of action potentials. In general, more action potentials are triggered when a stimulus is more intense, whether it be light stimulation of a photoreceptor, mechanical stimulation of skin, or stretching of a muscle receptor.
• Action potentials, electro-chemical signals that travel the entire length of the neuron, are used to transmit information. These neurons are then stimulated to release chemical messengers known as neurotransmitters, which aid in initiating action potentials in neighbouring cells, propagating the signal throughout the body.
• Neuron B's ability to fire its own action potential might be aided (excited) or hampered (inhibited) by the neurotransmitter. The ratio of hundreds of excitatory and inhibitory inputs to a neuron in an undamaged brain decides whether an action potential will occur.
• The rationale for the answer, which is provided as true, is that I=nhv, where n is the number of photons. As a result, when frequency doubles, so does intensity.
• No action potential will trigger if the neuron falls below this crucial threshold level. Additionally, when the threshold level is reached, an action potential of a fixed magnitude will always fire—that is, the size of the action potential always remains the same for any individual neuron.

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