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label these on knee jerk reaction Multipolar neuron cell body/soma Unipolar neuron cell body/soma Dorsal horn of spinal cord Ventral horn of spinal cord Motor neuron cell body Oligodendrocytes Schwann Cells Synapse

label these on knee jerk reaction Multipolar neuron cell body/soma Unipolar neuron cell body/soma Dorsal horn of spinal cord Ventral horn of spinal cord Motor neuron cell body Oligodendrocytes Schwann Cells Synapse

Human Anatomy & Physiology (11th Edition)
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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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label these on knee jerk reaction

Multipolar neuron cell body/soma
Unipolar neuron cell body/soma
Dorsal horn of spinal cord
Ventral horn of spinal cord
Motor neuron cell body
Oligodendrocytes
Schwann Cells
Synapse

 

Part 2
EPSP
Calcium (Ca2+) channels
Presynaptic neuron
Postsynaptic neuron
Specific neurotransmitters (which neurotransmitters are involved in this reflex?)
Receptor subtypes (which receptor subtypes are involved in this reflex?)

 

### Nervous System and Reflex Arc #### Reflex Arc Diagram The image depicts the pathway of a reflex arc, illustrating the neural components involved in a reflex action. --- 1. **Stimulation and Sensory Reception** The diagram begins with an illustration of the skin being stimulated. This action is indicated by an external object pricking the skin. This stimulation is picked up by sensory receptors in the skin. 2. **Sensory Neuron Pathway** The sensory information is then transmitted through a sensory neuron. This neuron's cell body, labeled as “Sensory neuron cell body,” is located in the dorsal root ganglion. 3. **Integration Center** The sensory neuron carries the impulse to the spinal cord. Here, the impulse is processed in the gray matter of the spinal cord by interneurons. This part of the diagram shows a complex network where integration occurs. 4. **Motor Neuron Pathway** Following the integration center is the motor neuron pathway. The motor neuron carries the response impulse from the spinal cord to the muscle. 5. **Muscle Response** In the final part of the diagram, the motor neuron connects to a muscle in the leg. The muscle contracts in response, leading to a reflex action (such as moving the leg away). --- #### Key Labels and Arrows - **Sensory Neuron Cell Body:** Located in the dorsal root ganglion, it is crucial for transmitting sensory input to the spinal cord. - **Directional Arrows:** These arrows are used throughout the diagram to indicate the direction of neural impulses from sensory reception to muscle response. This diagram is fundamental to understanding the basic mechanics of reflex actions, demonstrating how the body can react to stimuli without the need for conscious thought.
Transcribed Image Text:### Nervous System and Reflex Arc #### Reflex Arc Diagram The image depicts the pathway of a reflex arc, illustrating the neural components involved in a reflex action. --- 1. **Stimulation and Sensory Reception** The diagram begins with an illustration of the skin being stimulated. This action is indicated by an external object pricking the skin. This stimulation is picked up by sensory receptors in the skin. 2. **Sensory Neuron Pathway** The sensory information is then transmitted through a sensory neuron. This neuron's cell body, labeled as “Sensory neuron cell body,” is located in the dorsal root ganglion. 3. **Integration Center** The sensory neuron carries the impulse to the spinal cord. Here, the impulse is processed in the gray matter of the spinal cord by interneurons. This part of the diagram shows a complex network where integration occurs. 4. **Motor Neuron Pathway** Following the integration center is the motor neuron pathway. The motor neuron carries the response impulse from the spinal cord to the muscle. 5. **Muscle Response** In the final part of the diagram, the motor neuron connects to a muscle in the leg. The muscle contracts in response, leading to a reflex action (such as moving the leg away). --- #### Key Labels and Arrows - **Sensory Neuron Cell Body:** Located in the dorsal root ganglion, it is crucial for transmitting sensory input to the spinal cord. - **Directional Arrows:** These arrows are used throughout the diagram to indicate the direction of neural impulses from sensory reception to muscle response. This diagram is fundamental to understanding the basic mechanics of reflex actions, demonstrating how the body can react to stimuli without the need for conscious thought.
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