Albert, the patient in question 3, takes the drug lithium, which reduces the permeability of the neuronal axolemma to Na+. Predict the effect this would normally have on his neuronal action potentials. Do you think this drug would be beneficial or harmful, considering his condition?

Q: If two action potentials come very close to each other in one and the same presynaptic terminal ...…

A: An action potential is interpreted as a rapidly, transitory, and producing alteration of the resting…

Q: Alpha2 receptors are found on _____________ neurons and mostly for modulation of the synapse.…

A: The alpha-2 (α2) adrenergic receptor is a G protein-coupled receptor (GPCR) related to the Gi…

Q: The initial rise in the membrane potential of an axon upon stimulation is called the...........…

A: MEMBRANE POTENTIAL: Membrane potential is difference between potentials of inner side and the…

Q: Pick two neurotransmitters and discuss their effects.

A: Neurotransmitters are the group of chemical messengers synthesized by the nerve fibers of an…

Q: A synapse is basically the same thing as a neurotransmitter. a. True b. False

A: Neuron is the structural and functional unit of nervous system. Electrical signals are transmitted…

Q: This is a major inhibitory neurotransmitter which slows CNS function

A: Nervous system is majorly classified into two types, central nervous system and peripheral nervous…

Q: Tricyclic antidepressants, such as imipramine hydrochloride, have been prescribed for treatment of…

A: Attention deficit-hyperactivity-disorder is commonly found in children. The condition is…

Q: action potentials develop at the initial segment of the axon because

A: The neuron is the basic working unit of the brain, a specialized cell designed to transmit…

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: he rate of conduction of an action potential along a nerve fiber is affected by a range of things.…

A: Introduction Nerve conduction:- It is an electrochemical process, Conduction of nerve impulse occurs…

Q: Hyperkalemia was discussed at length in this module.  If a cell is experiencing hyperkalemia, what…

A: Question-  Hyperkalemia was discussed at length in this module.  If a cell is experiencing…

Q: Chemicals such as organophosphate pesticides inhibit the activity of acetylcholine esterase. What…

A: In the central nervous system, a synapse is a small gap at the end of a neuron . It allows the…

Q: To maintain ________ action potentials are sent through ______ neurons.

A: Introduction  The fast rise and fall of the membrane potential at a particular cell site is known as…

Q: Monoamine oxidase inhibitors (MAOIs) are drugs that inhibit MAO, the enzyme which normally would…

A: Dopamine is a neurotransmitter. When it binds to it's receptors present on the post synaptic neuron…

Q: At __________ synapses, neurotransmitters hyperpolarize the membrane, by making it more permeable to…

A: The synapse is the connection between two neurons. In case of chemical synapse neurotransmitters are…

Q: Tru or

A: There is release of neurotransmitters by the inhibitory pre synaptic neurons that bind to the post…

Q: Compare and contrast graded potentials and action potentials. What are the functions of graded…

A: In animal cells, the plasma membrane expresses several types of ion channels that participate in the…

Q: 8. Explain what is happening within the neuron at each step each step of the action potential…

A: Neuron is one of vital component of muscular system which actually helps in transmission of signal…

Q: Efferent neurons of the Multiple Choice ANS innervate skeletal muscle. somatic motor nerves…

A: Efferent neurons are motor neurons that carry neural impulses away from the central nervous system…

Q: List four things that can happen to autonomic neurotransmitters after they are released into a…

A: Introduction: Neurotransmitters are the chemical messengers released from the end of the nerve cell…

Q: There is no cure for Alzheimer’s disease, but cholinesterase inhibitors can be used to treat…

A: Alzheimer’s disease is a neurodegenerative disease that is characterized by progressive loss of…

Q: If two action potentials from two different presynaptic nerve cells reach the target cell at the…

A: Summation means addition of any two or more things. Summation is of two types namely: Spatial…

Q: viour Choose ] His neurons will be incapable of graded potentials It will take larger-than-usual…

A: Voltage gated potassium ion channels are transmembrane channels that play a very important role…

Q: At a given synapse, the _____ neuron has neurotransmitter receptors.

A: Neurotransmitter receptors:                       The receptors present in the plasma membrane of…

Q: Why is saltatory conduction along a myelinated axon faster than continuous conduction along an…

A: The cell body comprises the nucleus and other cell organelles. Dendrites expand from the cell body…

Q: A damaged axon in the PNS may be able to regenerate only if the cell body is intact. why do you…

A: A neuron comprises many dendrites and each of them has one axon, which is also known as the nerve…

Q: Fill in the blank :- The depolarization phase of action poten:-tials in neurons is due primarily…

A: Over long distance neurons can communicate with each other by generating and sending electricals…

Q: Which of the following nerves would be expected to have the slowest conduction rate of action…

A: An axon is a long, slender projection of a neuron (nerve cell) that typically conducts electrical…

Q: which way does the neurotransmitter NO move

A: The chemical messengers that transmit a message from a nerve cell to a target cell across the…

Q: If a neurotransmitter binds to a receptor that opens potassium channels, the result is ... Group of…

A: Postsynaptic potentials refer to the alteration in the postsynaptic terminal’s membrane potential of…

Q: After injecting the neuron with a Lucifer yellow dye, you visualize a group of neurons with very…

A: We have different sections of the nervous system.  Most of the originate from the central nervous…

Q: During extreme dehydration, plasma K* can increase to as high as 10 mM. (A) What would the membrane…

A: Introduction  When you use or lose more fluid than you consume, your body becomes dehydrated because…

Q: Use this illustration to place these events in the order they occur during synaptic communication:…

A: The above image shows the transmission of nerve impulses across a synapse. A synapse is a small…

Q: An action potential does not get smaller as it propagates along an axon. Why not?

A: The nervous system has the control for the conduction of the electrical impulses from the…

Q: Question 2: Action potentials 1. Aneuron is isolated and placed in a bath of normal ECF solution.…

A: Introduction An action potential is a characteristic pattern of sudden rise and subsequent decline…

Q: Cocaine blocks the reuptake of dopamine, causing high levels of dopamine to stimulate the…

A: Cocaine is a tropane alkaloid that is derived from the leaves of one of four Erythroxylaceae species…

Q: One of your patients, a young man in his mid-20s called Jeff has suffered from  seizures for as long…

A: Seizures is clinical manifestation of Transient disturbance of cerebral functions. Epilepsy   is a…

Q: serotonin reuptake inhibitors (SSRIs) affect the reuptake of neurotransmitter by presynaptic cells.…

A: synapse is the Junction point between two neurons. The first neuron is called presynaptic neuron…

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: What is a graded action potential ,when talking about the nervous system, in human anatomy?

A: Graded potentials are changes in membrane potential that vary in size. They include diverse…

Q: What could happen if a neurotransmitter level was too low or too high? Give an example.

A: Neurotransmitters are chemical messengers stored in synaptic vesicles and released in response to an…

Q: Rlvastigmine is a cholinesterase inhibitor medication that alleviates symptoms in Alzheimer's and…

A: Here, 1) Pre synaptic neuron 2) Synaptic vesicle 3) Choline esterase

Q: Select the best answer or answers from the choices given: Identify the neuronal circuits described…

A: Neurons (also called neurons or nerve cells) are the fundamental units of the brain and nervous…