Classify the given items with the appropriate group. Voltage-gated sodium channels are opened then closed in the inactivated state No amount of stimulus will initiate a second action potential Occurs when voltage-gated sodium channels have returned Occurs about 1 millisecond after an action potential to resting state Another action potential can be initiated, but only with a particularly strong stimulus Neuron is hyperpolarized

Q: Which of the following describes a threshold potential?   A brief reversal of the charge difference…

A: Answer. All cells have an electrical potential difference, or membrane potential, across the plasma…

Q: In a combination of excitatory or inhibitory synaptic connections the following is true it is poorly…

A: The Stretch reflex is an example of a monosynaptic reflex with direct connections between the…

Q: Extracellular recordings create a distinct action potential. Choose the option that best describes…

A: INTRODUCTION :  Extracellular recordings - These are recordings of electrical potentials which are…

Q: Which of the following statements best describes the properties of a myelinated axons?     The…

A: Axons are surrounded by a multilayered protein and lipid covering, called the myelin sheath. Such…

Q: "After an action potential has just passed through the axon hillock, the voltage-gated Na+ channels…

A: Thank you for the question  Answer : If a second action potential can be generated it refers to as…

Q: Which of the following occurs immediately after the peak of an action potential? The membrane…

A: Change in electrical potential related with the impulse entry along the membrane of a muscle cell or…

Q: conduction velocity will be faster in the patient. conduction velocity will be slower in the…

A: Multiple sclerosis is a permanently disabling disease that affects the brain and the spinal cord. In…

Q: Start by giving one, detailed sentence that describes the figures below. Then tell me what is…

A: An action potential is a characteristic pattern of quick rise and subsequent decline in voltage or…

Q: For each FALSE statement, explain why it is incorrect.

A: The afferent division transmits impulses from peripheral organs to the CNS. The efferent or motor…

Q: From the time an action potential reaches the axon terminal of a motor neuron until cross bridge…

A: Muscle contraction happens when the sarcomeres are shortened, when the thick and thin fibers slip…

Q: What membrane protein of the neuron is responsible for briefly increasing the Na+ permeability of…

A: Transporters refer to the membrane protein that transports the molecules and ions from outside of…

Q: In the resting state, before or long after an action potential occurs, the activation gates of…

A: Voltage-gated Na+ channels have three main conformational states: closed, open and inactivated.…

Q: An autonomic neuroeffector junction Has the same structure as a somatic motor neuroeffector…

A: Neuroeffector junction is a site where a motor neuron releases a neurotransmitter to affect a…

Q: Consider this graph: Membrane potential (mV) +40 -10 -60 02 4 6 8 10 Time (ms) During this phase…

A: Step 1:

Q: A stronger stimulus means that the action potentials traveling down your nerves will have a higher…

A: Nerve is a complex structure comprising of a collection of neurone, blood vessels, lymph vessels and…

Q: neuron of the median giant fiber of an earthworm would respond to an increased intensity of a…

A: Every cell membrane remains in a polarized state that is in a charged state. Whenever a response has…

Q: If depolarization occurs at the neuromuscular junction and threshold is met, then…

A: If depolarization occurs at the neuromuscular junction and threshold is met, then, the…

Q: Action potential frequency in phasic receptors with a prolonged stimulus in tonic receptars with a…

A: The sensory system is composed of sensory receptors that are present at the peripheral ending of the…

Q: The potential difference that must be met in order for an action potential to be generated When the…

A: Action potential An action potential is defined as an electric impulse that travels down through a…

Q: A patient is given a drug that blocks the L-Type calcium channel blocker. Which phase of the action…

A: Signal transduction pathways translate signals received at the cell's surface into cellular…

Q: Compared to an action potential, a graded potential is weak and depending on the stimulus strength…

A: Neuron is a vital part of nervous system that is involved in transmission of signal impulse to all…

Q: TRUE OR FALSE   Depolarization of the rod cell membrane causes increased neurotransmitter release.

A: Rod cells release more of their neurotransmitter when they are depolarized. This happens because…

Q: Compare graded and action potentials in a typical neuron. At a minimum you should include a…

A: graded potential are variable strength signals that can be transmitted over short distance ; action…

Q: During the patellar reflex, you measure voltage change in the flexor muscle motor neuron cell body…

A: The L2, L3, and L4 spinal cord segments are tested by the patellar reflex, also known as the knee…

Q: the refractory period limits the number of action .2 potentials that a given nerve cell can produce…

A: The neurons communicate with each other by generating action potentials. An action potential is…

Q: Please place the boxes according to cell received stimulus and cel

A: The resting membrane potential explains what happens when a neuron is at rest. An action potential…

Q: The conduction velocity in nerves is primarily dependent on the O localization of the Na+ / K+ pumps…

A: Nerve conduction velocity (CV) is an important aspect of nerve conduction studies. It is the speed…

Q: Which of the following are the likely explanations for the failure of a postsynaptic neuron to…

A: The postsynaptic element is often the soma or dendrite of a postsynaptic neuron. The other side of…

Q: Which of the following is comparable to a negative feedback cycle? opening of voltage-gated Na*…

A: Negative feedback cycles are important mechanisms that help regulate biological processes. In…

Q: Order the following in the correct sequence that results in generation of action potential

A: An action potential is primarily known as a sudden, rapid, propagating, and transitory change of the…

Q: Correctly label the following parts of a myelinated axon. CNS PNS Oligodendrocyte Schwann cell…

A: Nervous system coordinates and controls the activities of the animals. It is responsible for…

Q: Summation means that a post-synaptic neuron only has an action potential if:     there are no…

A: The neurons have the capability of generating and transmitting electrical impulses throughout the…

Q: Of the following, which must be true for an action potential? I - Action potentials only occur when…

A: The action potential is a potential that is fired when the voltage-gated sodium ion channels open.…

Q: Describe how an action potential in the presynaptic neuron is generated in the postsynaptic neuron.…

A: Neurons are known to send electrochemical signals, for which they first need to be stimulated by…

Q: An increase in the magnitude of depolarization by a graded potential will increase the threshold…

A: Graded potentials occur in plasma membrane of cells but in neurons they occur in the synaptic…

Q: Anatomically, the motor endplate potential is characterized by synaptic boutons active zones O…

A: Motor endplate-The specialized postsynaptic area of a muscle cell(myocyte). The motor endplate lies…

Q: How do ACh neurotransmitters cause the “second action potential”

A: Acetylcholine is the neurotransmitter of the parasympathetic nervous system that dilates blood…

Q: PhysioEx, Neurophysiology of Nerve Impulse

A: Neurophysiology of a nerve impulse includes the transmission of signals along the neuron,…

Q: You have a photoreceptor cell in a dish. You are recording its membrane potential while flashing…

A: Answer :- Option (B) is correct. - The cell depolarizes, with brighter light causing more…

Q: Neurotransmitters Synaptic vesicle Neurotransmitter re-uptake pump Ахon Voltage- gated Cat+ channel…

A: Introduction :- The chemical messengers of the body are typically referred to as neurotransmitters.…

Q: Consider the following three diagrams of a nerve cell membrane. They show resting potential,…

A: Cells are in resting membrane potential due to the differential ion concentrations inside and…

Q: Which of the following nerve types leads an action potential most slowly? Group of answer options…

A: Action potential is defined as the sequence of events that takes place during stimulation of…

Q: Which of the following would most likely occur if you experimentally depolarise the middle of an…

A: Neuron is a chief structure of nervous system which helps in transfer of impulse from one part to…

Q: Continuos propagation of action potentials occurs in myelinated axons and is faster than conduction…

A: Indeed.In myelinated axons, action potentials propagate continuously and more quickly than in…

Q: Axon can't branch Afferent neurons are generally bipolar neurons Most neurotransmitters are…

A: The structural and functional unit of the nervous system is the neuron. These nerve cells are not…

Q: An action potential is considered an "all or nothing" event. What does this mean? Explain using the…

A: Nerve impulse, also called action potential, is the change in the membrane potential due to  an…