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During the absolute refractory period along an axon membrane of a neuron?
During the absolute refractory period, the neuron is unable to generate another action potential, regardless of the stimulus strength. This is because sodium channels are inactive and unable to open. This period ensures that action potentials are discrete and travel in one direction along the axon.
What does Weber's law refers to?
weber-fechner law (effect of intensity of stimulus on receptors) :- the frequency of the action potentials conducted along the afferent nerve fiber is directly proportional to logarithm of the intensity of the stimulus applied to the receptor. This means that an increase in the intensity of the stimulus leads to an increase in the amplitude of generator or receptor potential, that increase the frequency of the action potential conducted along the afferent fibers connected to the receptor.
Who actually writes the bills in congress?
the president along with his financial advisors
What is the firing rate in a nerve?
The firing rate in a nerve refers to the frequency at which action potentials are generated and conducted along the nerve. This firing rate can vary depending on the type of nerve and the intensity of the stimulus being received.
What are the two important principles related to nerve impulses?
1. The All-or-None Law states that the impulse is independent of the properties of the stimulus which started it. As long as the nerve cell is stimulated by an impulse of a certain minimal strength, it makes no difference how strong the exciting impulse is - just as a match or a blowtorch produces the same reaction in a fuse. It either fires or does not and there are no shades in between. The nerve impulse remains at the same strength as it travels along the nerve fiber, just as the spark remains at the same intensity as it moves along the fuse. The reason for this is evident in what has been said about a stimulus releasing energy in the fiber. It does not contribute energy.Impulse size and speed: The nerve impulse varies with the size of the fiber. (It is proportional to the square of the fiber's diameter.The size of the nerve impulse also depends on the condition of the fiber - being altered if drugged, deprived of oxygen, fatigued or in an abnormal state.2. The Frequency Principle states that there are more impulses per second with the stronger stimulus than with the weaker stimulus. A stronger stimulus produces impulses more frequently than the weaker stimulus. The frequency of nerve impulses is thus a function of the intensity of the stimulus.
How does the rate of photosynthesis respond to changes in light intensity?
It directly increases along with the growth in intensity of the light
What does your body do reaction to a stimulus?
A Stimulus is picked up by a receptor, travels along a sensory neurone to either the spinal cord or brain, then it is processed to produce some response.
Will graded potential increase amplitude as they move away from the stimulus point?
No, graded potentials do not increase in amplitude as they move away from the stimulus point. They dissipate as they travel along the neuron membrane due to leak channels and distance from the original stimulus.
A reflex arc begins with the stimulation of a what?
A reflex arc begins with the stimulation of a sensory receptor such as those on the skin. The stimulus is then passed as an electrical impulse along sensory, relay and motor neurones (by-passing the brain) before reaching an effector orgen, like a muscle, which then responds to the stimulus.
What is a transmiter?
---- A transmit is something that can be sent over, passed on, passed along, and/or let through. ----
What is passed along the food chain?
Energy
What is a change that initiates an electrochemical message along a neuron?
When a neuron is stimulated, ions move across its membrane, creating a change in the electrical potential of the neuron. This change, known as an action potential, is propagated along the neuron's axon, allowing for the transmission of electrochemical signals.
