The membrane voltage at the axon hillock is not affected by_ O a. EPSPS b. temporal summation OC. spatial summation O d. IPSPS e. none of the above

Q: Transmission of the nerve signal across a synapse is accomplishedby thea. movement of Na+ and K+.b.…

A: Introduction  Neuron/Nerve: A neuron is a single nerve cell which consists of central cell body,…

Q: You are recording the electrical activity of a cell body with a resting membrane potential of -70…

A: Given; Resting membrane potential of the cell= -70mV No. of stimuli detected by the cell= 3 from…

Q: What event triggers an action potential?a. Opening of sodium channelsb. Opening of delayed potassium…

A: 1- Opening of delayed potassium channels 3-High concentration of negative ions outside the cell.…

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: The entry of sodium into the axon causes A. Depolarization of the membrane B. Increase negativity…

A:

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: Transmission of the nerve impulse across a synapse isaccomplished bya. the release of Na+ at the…

A: Introduction  Neuron/Nerve: A neuron is a single nerve cell which consists of central cell body,…

Q: Which of the following is NOT an example of communication that happens from one neuron to another…

A: Answer: - Option a - Endocrine signalling (ex. hormones secreted into the bloodstream travel and…

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: When a neuron’s resting potential is occurring, the neuron is __________ charged on the inside. a.…

A: Neuron is a cell present in the nervous system that is accountable for receiving and transmitting…

Q: What characteristic distinguishes dendrites from axons?a. Presence of branches at the tipsb.…

A: Introduction: The structural and functional unit of the nervous system is a nerve cell or neuron. It…

Q: Damage to the axons in the spinal cord is typically permanent and debilitating. One promising avenue…

A: Neuroglial cells are nonexcitatory supporting cells that are present in both central(CNS) and…

Q: A serotonin can bind to ___. A. All nuerotransporters B. Serotonin and glutamate receptors since…

A: Serotonin is an essential neurotransmitter and hormone that affects many physiological and mental…

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: 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: What is the conduction velocity of the action potentil in a myelinated axon of the nerve cell?

A: The conduction velocity is the speed in which electrochemical impulse propagates down a neural…

Q: 32) In order for a nerve impulse to be transmitted across a synapse, a neurotransmitter must be…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following is/are found only in the PNS? a. Nerves b. Astrocytes с. Мyelin d. Lipofuscin…

A: Peripheral nervous system comprises all the nervous tissue outside the central nervous system. There…

Q: Describe and locate the main parts of a cell. (pictures could be included)

A: Cells are the structural and functional parts of the organism. According to the complexity the cells…

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: Posttetanic potentiation of a synapse increases the amount of in the axonterminal.a.…

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

Q: Refers to the temporary time in which a neuron cannot be stimulated resting potential O refractory…

A: refractory period.

Q: Which of the following conduct sensory impulses to theCNS from receptors in muscle or skin?a.…

A: In physiology, sensory impulses are defined as the mechanism or phenomenon of two phases which are…

Q: Neurotransmitters are released from neurons due to the opening of ____________. Select one: a.…

A: Neuron is the sub unit of nervous system. It helps in coordinating the different body parts via…

Q: Which of the following examples of synaptic integration is most likelyto lead to an action potential…

A: The cell that lies after the synapsis and receives the neurotransmitter from the presynaptic cell is…

Q: All afferent signals travel what direction? O None of these is correct O Toward a muscle Toward the…

A: All afferent signals travel towards central nervous system.

Q: When the action potential begins, Na+ gates open, allowing Na+ to cross the membrane. The charge…

A: Membranes potential can be defined as the change in electric potential due to changes in the amount…

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: A synapse is:   a. a gap between neurons   b. crossed by a chemical   c. separates the axon end…

A: the microscopic gap present between terminal end of axon of one neurone and dendron or axon or cell…

Q: The rate of information transmission from the central nervous system (CNS) to an effector organ will…

A: Nerve impulses or action potentials are electrical signals that travel along the length of a neuron.…

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: 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: of the following is true of axons?

A: Axons are the distal part of the neuron. There are two types of axons. The myelinated nerve fibres…

Q: 3.single choice Which part of the nervous reflex is fatigable. A. synapse B. sensory receptors C.…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Predict what would happen if the calcium ion channels in the axon terminal were blocked   a. It…

A: The message is transmitted across the nervous system in the form of nerve impulse. The neurons are…

Q: Summationa. is caused by combining two or more graded potentials.b. occurs at the trigger zone of…

A: The action potential is the temporary shifts in the potential of the neuronal membrane which results…

Q: An excitatory postsynaptic potential   a. is only one of several types of graded potential.   b.…

A: Preynaptic cell is the cell or a neuron from where the signal is passed on to the synapse to the…

Q: 2 Which of the following answers correctly identifies the number showing the axon terminal in the…

A: Action potential is a process of sudden, rapid change in the resting potential across the membrane.…