The image depicts a synaptic junction with labeled structures. These structures are part of the neurotransmission process. Below the diagram, there's an activity to match each lettered label with its correct structure name.**Diagram Explanation**:- **A**: Unlabeled structure not specifically referenced in the activity.- **B**: Circular structures inside the presynaptic neuron.- **C**: Structures located in the synaptic cleft.- **D**: Vertical structures or shapes on the postsynaptic side.- **E**: Vertical structures similar to D.- **F**: Circular structures on the presynaptic neuron.- **Y**: A curved line indicating the boundary of another structure.**Matching Activity**:The task asks to match the letters (B, C, D, E, F, Y) with the following structure names:- Receptor Protein- Pre-synaptic vesicle in axon terminal- Neurotransmitters- Reuptake Inhibitor- Synapse- Dendrite**Buttons for Matching**:Each letter has a corresponding box to match with the names of the structures listed below by filling in the correct term in each box. **HBS 2.2.2 Activity: Neuronal Communication Sequence**Organize the following steps in the sequence they occur after one neuron sends a message to the next neuron:1. **Dendrites receive neurotransmitters from synapse.** - The dendrites of the neuron detect and capture neurotransmitters released from the synaptic cleft of the previous neuron.2. **Neuron depolarization occurs going from -70mV to 30mV.** - The cell membrane's potential changes, becoming less negative as sodium ions flood into the cell, moving from a resting potential of -70mV to a peak potential of 30mV.3. **Sodium channels open.** - Specific channels in the neuron's membrane open to allow sodium ions to enter, initiating depolarization.4. **Sodium channels close and potassium channels open.** - After reaching peak depolarization, sodium channels close, and potassium channels open, allowing potassium ions to exit the neuron.5. **Neuron repolarization occurs going from 30mV to -90mV.** - The efflux of potassium ions causes the neuron to become more negative, surpassing the initial resting potential, reaching approximately -90mV.6. **Potassium channels close.** - Once repolarization is complete, potassium channels close to prevent further ion movement.7. **Sodium potassium pump restores neuron to -70mV.** - The sodium-potassium pump actively restores the resting potential by moving sodium ions out and potassium ions into the neuron, reestablishing the original -70mV membrane potential.This sequence of events is crucial for understanding how neuronal messages are transmitted, ensuring proper nervous system function.

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Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Draw a presynaptic and postsynaptic neuron at to demonstrate the release and acceptance of a neurotransmitter. Identify the following in your drawing: Ca2+, synaptic cleft, receptor, synaptic vessicle, SNARE, presynaptic neuron, postsynaptic neuron
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13) Draw a graph representing the changes in membrane potential across the axonal membrane before, during, and after an action potential. On your graph, use a highlighter to clearly indicate for which portions of your graph the letter corresponding to each cellular event listed below belongs. List of cellular events: A) All K* channels open B) All Na* channels close C) The Na*/K* ATPase cotransporter transports Na* and K* across the membrane. D) All Na* channels open E) The threshold value of membrane potential is attained. F) All K* channels close G) Some Na* channels open Your graph:
Place the following events in chronological order from 1-8: Nat enters the cell, and depolarization occurs to approximately +30 mV. The voltage across the cell membrane is -70 mV, the resting membrane potential. Upon reaching the peak of the action potential, the VG Nat channels are inactivated by the closing of their inactivation gate and the activation gate of each VG K channel opens. VG K channels close by the closing of their activation gate, and the resting membrane potential is gradually restored. An excitatory post-synaptic potential depolarizes the membrane to threshold and the activation gate of VG Nat channels open. Upon returning to the resting membrane potential, VG Na channels are reset by opening of the inactivation gate and the closing of the activation gate. VG K+ channels are slow to close, resulting in an excess of K* efflux and hyperpolarization. Depolarization occurs as K+ flows out of the cell.
please answer 21,22
In a neuron at rest, there is a difference in the electrical charge across the cell membrane, with the inside of the cell being more negative than the outside. This is primarily due to: a) secondary active transport of Na+ b) the difference in the concentrations of Na+ inside and outside of the cell c) simple diffusion of K+ ions d) leak channels increasing the permeability of the membrane to K+ ions e) facilitated diffusion of Na+ ions
Which of the following occurs during synaptic transmission? Select ALL that apply A) vesicles filled with neurotransmitter are released into the synapse B) an action potential travels through a neuron like a wave C) neurotransmitter binds to receptors on the sending neuron D) neurotransmitter binding to a receptor triggers the opening of an ion channel E) ions enter the receiving neuron's dendrites
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(HBS 2.2.2) Match the letter to the correct structure name. -A ‚B re-uptake E Y D F Y : Receptor Protein : Pre-synaptic vesicle in axon terminal : Neurotransmitters : Reuptake Inhibitor : Synapse : Dendrite II