Event "D" in the diagram above is referred to as... O a Polarization O b. Depolarization Oc. Refractory period d. Repolarization Use the following information to answer the next question Membrane potential (mv) -55 Action potential of a neuron in response to a stimulus of -55 mV D A B Time

Q: Rank the following neurons for their speed of conduction from fastest to slowest: Ranskik die…

A: Brain is the main center for receiving the impulses from different parts of the body and sending…

Q: Match the description with the statement that best describes the following regions e dendrites +…

A: Neuron:

Q: Which refers to the time during which a neuron can undergo an action potential? O the resting…

A: Nervous system is one of the most important system of our body it send and receive information via a…

Q: The following figure is showing; Node Node Myelin sheath Node of Ranvier (a) Na+ ONa* Depolarization…

A: Axons are slender fibres that stretch from a neuron, or nerve cell, and are accountable for…

Q: Action potentials ____. Select one: A.can occur only once B.can move up or down an axon, away from…

A: Nervous system is the interconnection of neurons. They carry the message from one place and send to…

Q: The Na+/K+ ATPase pump is a. not required for action potential firing. b. important for…

A: Introduction  Chloride is the most abundant anion in the extracellular fluid. Along with Chloride…

Q: increases the probability of producing an action potential, where a ________ decreases the…

A: Depolarization increases the probability of producing an action potential, where a hyperpolarization…

Q: A change in the voltage across a neuron’s plasma membranethat makes the neuron less likely to fire…

A: The neuron is the structural and functional unit of the nervous system. The neuron is also known as…

Q: Which of the following is true of graded potentials? a. They always reach the same voltage o b. They…

A: Neurons are the basic structures and functional units of the nervous system. The axon or the nerve…

Q: Cholinesterase is an enzyme that breaks down acetylcholine in the synapse. What would be the result…

A: The interaction between acetylcholine and cholinesterase plays a significant role in the functioning…

Q: The difference in charges across the plasma membrane of anunstimulated neuron is calleda. an EPSP.b.…

A: A neuron refers to the structural and functional unit of the nervous system which is involved in the…

Q: f the absolute refractory period of a neuron is 0.7 milliseconds, what is the maximum frequency of…

A: The trick used by the nervous system is that the intensity of the stimulus is encoded into the…

Q: For a neuron to fire an action potential, its membranemust reach ________.a. hyperpolarizationb. the…

A: An action potential is a rapid rise and subsequent fall in voltage or membrane potential across a…

Q: (f) Parts of a Neuron A Axon (initial B segment) G H C Synapse: The region where an Faxon terminal…

A: Neuron is the fundamental unit of the central and peripheral nervous system. Its major function is…

Q: Which of the following is probably going to propagate an action potential fastest?a. a thin,…

A: The propagation of an action potential over an unmyelinated axon is known as continuous conduction.…

Q: Which neuron (s) fired (released neurotransmitters) at the 3 points indicated by the arrows

A: Answer. The neurons communicate at their meeting points, called synapse. The smallest gaps…

Q: True or False a. When they are at rest, neurons are more positively charged inside than outside the…

A:

Q: Which of the following would most likely occur if an electrical stimulus were applied at point C in…

A: The neurons have the capability to generate and propagate electrical impulses and it is known as…

Q: During the depolarization phase of an action potential, the permeability of the plasma membrane toa.…

A: Depolarization influence the membrane to attain the threshold potential at which the nerve cell…

Q: An action potential begins when______ . a. a neuron reaches threshold potential b. voltage-gated…

A: Answer is a.) a neuron reaches threshold potential.

Q: In a resting neuron, which of the forces listed below will act to push sodium (Na+) ions into the…

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

Q: When is the charge inside a neuron at +40 millivolts? O during the refractory period O during the…

A: A membrane made up of a lipid bilayer with proteins incorporated in it surrounds all animal cells.…

Q: An inhibitory presynaptic neuron can affect a postsynaptic neuron bya. producing an IPSP in the…

A: The communication of neurons with one another occurs at the site of the synapse, where two nerve…

Q: Myelinated and unmyelinated neurons requires _________ to propagate action potential down the axon.…

A: Neurons are the electrically excitable cell in our body which communicate with the other cell by a…

Q: More than one answer may apply When voltage gated sodium channels of a resting neuron open O Na…

A: Neurons (or nerve cells) are the ones that send and receive signals from your brain. They are…

Q: .dחaMa"in it the

A: The equilibrium potential is the particular membrane potential where the net flow through any open…

Q: During an action potential _______    A. Na+ flows out of cell and causes depolarization  B. K+…

A: A characteristic pattern of rapid rise and subsequent fall in voltage or membrane potential across a…

Q: answer

A: Action potential :- Is defined as a sudden, fast, transitory change of the resting membrane…

Q: A synapse with all of these; a postsynaptic dendrite, an astrocyte end foot, and the presynaptic…

A: Introduction :- Synapses are part of the circuit that connects sensory organs in the peripheral…

Q: What causes the action potential to move down the axon

A: Neurons are special cells that transmit and process data from one part of the body to another. The…

Q: When an action potential happens: OA Sodium rushes into the cell in the first stage creating…

A: A nerve cell is a specialized cell for the communication to transmit information between neuron…

Q: What enables action potential to jump from one node of Ranvier to the next? OA. Increased LC OB.…

A: Nodes of Ranvier are points in the axon where myelin sheath is absent and hence conductance is…

Q: Which results in more action potentials in neuron D, stimulation by only A or B or C? Explain

A: In order to transmit signal from origin to its destination, many neurons are required and these…

Q: What effect would a WEAKER stimulus have on C?  a. Greater amplitude (height) b. Lower amplitude c.…

A: This graph represents rhat the action potential of nerves. The potential changes during the…

Q: Question 1 Explain why during the absolute refractory period, even a very strong stimulus cannot…

A: The period from the start of the action potential to followed after  peak is called as absolute…

Q: Under what conditions could the opening of a chloride channel actually depolarize a neuron rather…

A: Neuron depolarization is the process by which the electrical charge inside a neuron becomes more…

Q: Lypically 10 the membrane potential at which a gra mv to 20 mv depolarized both of these.

A: Resting membrane potentials are maintained by 2 differing types of particle channels: the…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.