Skin Spinal cord 2 A neuron was isolated from structure number 3 in the diagram above. When comparing the velocity of action potentials, structure numbered 3 is much slower than that of structure numbered 4. Which of the following explains why this is? Select one: a. Structure number 4 has a larger diameter than structure number 2. b. Structure number 4 does not have myelin sheaths. c. Structure number 3 does not have myelin sheaths. d. Structure number 3 has a larger diameter than structure number 4.

Q: 11. Sodium, chloride, and potassium ions are involved in setting up voltages across neuronal…

A: As per our Q & A guidelines, we are supposed to answer only three subparts. Please repost the…

Q: Read the following statements (a) The resting nerve membrane is freely permeable to Na*, K* ions and…

A: B and C

Q: The exocytosis of the synaptic vesicles depends on:

A: Synapse is the junction between two neurons. It is formed between the dendrites of one neuron and…

Q: A 100-um diameter nerve axon has the following properties: rm = 2.5 x 104 ohm x cm, ri = 1 x 105…

A: The resting Vm is the membrane potential when no current is flowing through the axon. It is the…

Q: Consider the circuit from Q5 (above). We want to add another inhibitory neuron to this circuit to…

A: An action potential is a rapid change in the electrical potential across the membrane of a neuronal…

Q: An electrode was placed on a neuron and the voltage across the membrane was measured as the neuron…

A: Neurons are the structural and functional units of the nervous system. They perform the task of…

Q: 3 An electrode was placed on a neuron and the voltage across the membrane was measured as the neuron…

A: The neurons are the nerve impulse generating and transmitting cells in our nervous system which have…

Q: During repolarization a  potassium ions (K* ) flow into the neuron. b  potassium ions (K* ) flow…

A: The response that our body gives to any external stimuli is due to the transfer of impulse from the…

Q: Describe the sequence of events that occur after a stimulus depolarizes the membrane from resting…

A: The resting potential tells about what happens when a neuron is very still or at rest. An action…

Q: Fluorescent FM dyes partition reversibly into biological membranes without penetrating through them.…

A: FM dyes are fluorescent compounds used in the examination of the process of recycling vesicles.…

Q: structures in the following diagram of a neuron. ? Do it

A: A neuron is a specialized cell that is the basic unit of the nervous system. Neurons are responsible…

Q: system is affected? Select one: Oa. Type of Neuron Division of the Nervous System Interneuron PNS b.…

A: The nervous system is the portion of an animal's body that controls and transmits signals between…

Q: exocytosis of GABA.  A. What anatomical part of a pre-synaptic neuron would be affected by this?…

A: Tetanus toxin is an extremely potent neurotoxin produced by the vegetative cell of Clostridium…

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: 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: In signal transduction in the dark, the cGMP plays what role? a. It promotes an action potential…

A: Cyclic GMP (cGMP) is "Guanosine monophosphate" in which the phosphate group is covalently linked to…

Q: 4. Illustrate (draw) what an action potential might look like with the following voltage-gated…

A: In this investigation, we look at how a few voltage-gated channels influence the appearance and…

Q: Which factors in the establishment of the membrane potential are considered in the Nernst equation?…

A: Resting membrane potential is defined as the electrical potential difference across the cell…

Q: Which of the following statements regarding polarized membranes is incorrect? a. There is a…

A: At rest, the ionic composition of the interior and outside of a neuronal membrane varies. As a…

Q: Jose measures membrane potential in two neighboring cells. He notices that when the membrane…

A: Membrane potential It refers to the difference in electric potential between the interior and the…

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: .What are the 3 types of chemical channels and where on the neuron would they be found? b.What…

A: Nerve cells or neurons are the basic structural and functional unit of the nervous system. They are…

Q: Match the letters with the correct part of the neuron in the picture below: A B A V [ Choose ] Axon…

A: Neurons are connected to each other to make nervous system. Different external stimulus is sensed by…

Q: In the knee-jerk reflex arc, the synapse between a sensory neuron and a motor neuron occurs where?…

A: Neurons- are electrically excitable cells that transmit impulses to and from the brain. They…

Q: age-gated transient Ca++ channels (F) funny channels

A: In the graph the changes in the membrane potential has been mentioned that is the potential changes…

Q: When a neuron reaches threshold voltage, all voltage-gated channels are triggered to make…

A: Neurons are specialized cells that transmit information in the nervous system. When a neuron…

Q: A choose your answer. Unipolar Neuron Multipolar Neuron Bipolar Neuron Neuron B is a choose your…

A: Neurons (nerve cells) are defined as the fundamental working unit of the brain and nervous system…

Q: If a neuron is stimulated simultaneously by 2 stimuli at its dendrites (one generates a very large…

A: The cells of nervous system are called neurons. They have 3 distinct parts, including the body of…

Q: E, E, Threshold of axon of postsynaptic neuron Resting potential -55 -70 E, TE, TE, TE, TE, + E, E,…

A: These figures show action potential which is a kind of change in membrane potential when the impulse…

Q: Most human axons have a myelin sheath that a. prevents action potentials from moving backward b.…

A: We know that The complex body of human being functions in a systemic and coordinated way and this…

Q: Two scientists calculated the membrane potential of a neuron using two different equations, the…

A: The membrane potential is the difference in electrical charge between the inside and outside of a…

Q: You are recording from two neurons in order to characterize the synapse that connects them. When the…

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

Q: Now assume that you have a typical neuron that has very few Na+ channels open relative to the number…

A: Introduction :- The difference between the concentration of ions on two opposite sides of membrane…

Q: Name four types of glial cells in the Central Nervous System, and list a function for ea of these…

A: Glial cells, consisting of microglia, astrocytes, and oligodendrocyte lineage cells as their major…

Q: The membrane potential labeled (0) is due to which of the following (when compared to (3) potential.…

A: Resting membrane potential is about -90 MV which suggests that the negative charge within the cell…

Q: Explain the following; If a drug partly blocks a membrane’s potassium channels, how…

A: Potassium channels are most widely distributed ionic pores present in the living organisms. These…

Q: 11) Compare the propagation speeds of an action potential along an axon that is 10 µM in diameter…

A: The electrical signal that moves across the membrane of a neuron is known as an action potential. It…

Q: Scientists would like to be able to use channel rhodopsin proteins to turn neurons both on & off…

A: Rhodopsin is a G-protein coupled receptor. The light is absorbed by the retinal that converts 11-cis…

Q: Regardless of type, all neurons transfer signals between each other or to effectors (muscles or…

A: Synaptic transmission occurs between the presynaptic neuron and the postsynaptic neuron with the…

Q: Conotoxin is produced by marine cone snails. Among its effects is to block voltage-gated Ca2+…

A: A conotoxin is defined as one of a group or set of neurotoxic peptides isolated from the venom of a…

Q: 7. You stimulate a presynaptic cell and record from the postsynaptic neuron of each pair. For each…

A: A nerve impulse transmits from one neuron to another neuron through synapses. A synapse is formed by…

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…

Q: Membrane potential (mV) -55 Action potential of a neuron in respo stimulus of -55 mV D A B Time

A: Action potential is a fundamental process that occurs in neurons, which are specialized cells…