Is reflex considered a function of autonomic nervous system?

In summary, reflexes are not exclusively under the autonomic nervous system, as the somatic nervous system also has its own types of reflexes. Neural activity in the brain can be associated with both systems, but they can also operate separately or work together for a quicker reflex action. Both systems take small breaks throughout the day to allow for chemical transport and signaling. Neurotransmitters play a crucial role in reflexes and can be affected by drugs or alcohol, which can affect the reliability of reflexes.
  • #1
icakeov
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I was wondering if reflex is exclusively under the umbrella of the autonomic nervous system, or are there some reflexes that for some reason or definition, that would be associated with another nervous system?

I did find in some articles that somatic nervous system also has its own types of reflexes.

And an extra extension to this question, would it be safe to say that every neural activity in the brain is in some direct or indirect way, associated with the autonomic nervous system (and also the somatic)? Basically can autonomic and somatic nervous systems ever "take a break"?

I guess this can also fall into the category of it depending on what neurotransmitter is being activated?

Hope that makes sense.
 
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No, it doesn't exclusively occur through the autonomic nervous system. Both somatic and autonomous reflexes operate through different branches of the peripheral nervous system. Not all neural activity in the brain has to be associated with both at the same time, and sometimes the work is shared and a signal is initially split and sent through both systems for the a quicker reflex action. Sending signals through the spinal cord and back into the muscles gives us the shortest reaction time through it being a shorter pathway, causing the reflex. If you anticipate being given a knee jerk test at the doctors office, then you can try to control the somatic reflex more easily (try this, it's possible).

Yes, I do think that both take thousands of small breaks periodically throughout the day, and only a few seconds and less is really needed for that. We do have to have time for chemical transport and signalling to maintain all involuntary/voluntary function, that process isn't always so perfect- the heart doesn't beat at the exact same rate throughout the day.Think about how difficult it is to stay still, there are different muscles that have to 'take turns' to keep the body in that position, muscles cannot maintain the same position smoothly, the load must be released and seconds later, picked back up again. But, the signal pathways must have enough time to be cleared, and new chemicals must arrive so that the signal can be re-sent. We can stand on one leg for long periods by alternating between muscles, and involuntary responses in that position can still be countered by voluntary signaling other muscles to help maintain the one-leg stance.

Yes, neurotransmitters are involved in the process. Some drugs can alter these responses. Especially drugs that lower respiratory function, like muscle relaxers. Alcohol, legal and illegal drugs all compromise the normal process using neurotransmitters, which makes the reflexes more slow and unreliable. People can have all the willpower they wish for when having to walk a straight line for a police officer, but neurotransmitters must have appropriate levels for the action to take place.
 
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Great! Thank you @Fervent Freyja
 
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Related to Is reflex considered a function of autonomic nervous system?

1. What is a reflex?

A reflex is an involuntary response to a stimulus that is mediated by the nervous system. It occurs without conscious thought and is designed to protect the body from harm.

2. How does a reflex work?

A reflex is initiated by a sensory stimulus, which travels to the spinal cord. The spinal cord then sends a message to the motor nerves, which cause a muscle or gland to react. This process happens quickly and without conscious control.

3. Is a reflex considered a function of the autonomic nervous system?

Yes, a reflex is considered a function of the autonomic nervous system. The autonomic nervous system is responsible for regulating involuntary bodily functions, such as heart rate, breathing, and digestion. Reflexes are also involuntary and are controlled by the autonomic nervous system.

4. What is the role of the autonomic nervous system in reflexes?

The autonomic nervous system plays a crucial role in reflexes by coordinating the body's automatic responses to stimuli. It controls the muscles and glands involved in reflex actions and ensures that they respond appropriately and quickly to protect the body.

5. Can reflexes be controlled or learned?

Some reflexes, such as the knee-jerk reflex, cannot be controlled or learned. However, other reflexes, such as blinking, can be consciously controlled to some extent. Additionally, reflexes can be modified or conditioned through repeated exposure to certain stimuli, but they cannot be learned in the traditional sense.

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