What does it mean to say that action potentials are “all or none”?

Q: What is needed for action potentials to occur?

A: In physiology, an action potential is a sudden, transitory change in the resting potential of a…

Q: What is the difference between an excitatory postsynaptic potential and an inhibitory postsynaptic…

A: Postsynaptic potentials are changes within the membrane potential of the postsynaptic terminal of a…

Q: What is the relationship between action potentials andimpulses?

A: The nervous system is highly complex among different organ systems in animals. By transmitting…

Q: What is the differences between graded potentials and action potentials? Give some examples?

A: Graded Potential  Action Potential The response amplitude varies with the potency of the stimulus.…

Q: How do the two types of postsynaptic potentials differ?

A: Potential refers to the electric charge carried by the membrane. Transmission of nerve impulses…

Q: What is Action Potential Mechanism?

A: Biochemistry is a branch of science that deals with the study of chemical processes related to the…

Q: List four ways in which an action potential is different from a local potential.

A: SOME BASIC INFORMATION ABOUT A NEURON  NEURON   It is the longest cell inside the human body. It is…

Q: A common feature of action potentials is that they(A) cause the membrane to hyperpolarize and then…

A: Plasma membrane always try to maintain potential difference between the sides of the extracellular…

Q: What is an electrical synapse? Where can electrical synapses be found? Identify an advantage and a…

A: The brain is the organ that is Central to the nervous system. The nerves throughout our body carries…

Q: What does it mean to say a local potential is graded, decremental,and reversible?

A: Local potential can be defined as the fluctuation at the local region of the cell membrane. The…

Q: Consider the following graph of an action potential: 60- 30- membrane potential (mV) O -30- -60 line…

A: Action potential refers to the sudden rise and fall of membrane potential across a cellular membrane…

Q: Describe the difference between graded and action potentials.

A: Graded potentials are caused by external stimuli (in sensory neurons) or by neurotransmitters…

Q: How do action potentials and graded potentials differ?

A: The changes in the membrane potential of the plasma membrane in the neuron are stimuli for the…

Q: How does an action potential cross a synapse?

A: The sudden propagating, fast change in the resting membrane potential is called an action potential.…

Q: Describe the following terms: specificity, stimulus, receptor potential, synapse, neurotransmitter,…

A: Specificity indicates what percentage of those who do not have the condition have a negative result…

Q: Why does neuronal function require the voltage-gated K+ channels to open more slowly than the…

A: Voltage-gated channels are specialized proteins that are essential for the generation and…

Q: Which elements are involved with action potential?

A: Neuron or nerve cells are cells that act as messengers, they are able to undergo  electrical…

Q: What is summation with regards to action potentials?

A: Introduction:- The potential of action is the rapid rise and subsequent collapse of electrical or…

Q: How are Action potentials are very different from graded potentials?

A: The neurons are the functional unit of the nervous system. These cells help in transferring the…

Q: How graded potentials differ from action potential?

A: Nervous system is the complex system in our body which controls the entire body and coordinates the…

Q: What kind of graded potential describes a change in membrane potential from  70 to  60 mV? From  70…

A: The membrane potential is the difference between the two electric potentials the interior and the…

Q: Please answer fast 1:10 dilution is made of a solution. DRAW how you would make a further 1:10,000…

A: Make a 1:10 dilution of a 1M NaCl solution, so mix the one "part" of the 1M solution with nine…

Q: How does the Action Potential Propagation occur?

A: The impulse generated at the axon hillock propagates as a wave on the axon.

Q: What letter(s) represent the starting point of an action potential?

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: Inhibitory postsynaptic potentials cause what type of change at the post-synaptic membrane?

A: Excitatory  Neuron excites their target post synaptic neurones  or target cells causing it to…

Q: What is a typical value for an inhibitory post synaptic potential?  Why is it inhibitory?

A: An inhibitory post synaptic potential is a kind of synaptic potential that makes a postsynaptic…

Q: How much current actually flows across the membrane over the course of an action potential?

A: Cell to cell communication is an important aspect of all living organisms. It is required for the…

Q: Describe how an Action Potential is conducted.

A: The body has a network of conductive cells known as neurons. The neurons are connected end to end,…

Q: I have stimulated a neuron with dopamine for a second followed by treating it with cocaine and…

A: Homeostasis of calcium ions is essential for survival and neuronal function. In the nerve cells,…

Q: Discuss the differences between Graded Potentials and Action Potentials?

A: Both graded and action are a type of membrane potential used in neuronal signals in the synapse.