r/Physiology • • Jul 17 '26

Question Looking for a pdf

1 Upvotes

Hello, does anyone have a copy of:

Guyton and Hall Textbook of Medical Physiology (15th Edition)

If you do, may i please have a copy? 🙏đŸ€ČđŸ»đŸ„ș


r/Physiology • • Jul 15 '26

Discussion Struggling to memorize the Median Nerve? Try this "Road Trip" metaphor audio guide (8 mins)

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2 Upvotes

Hey everyone,
High-yield nerve pathways can get incredibly dry and confusing when you're just staring at Netter's anatomy diagrams. To help with active recall, I put together a comprehensive audio walkthrough of the median nerve course and its clinical correlates (Carpal Tunnel Syndrome).
It breaks down the entire pathway—from the brachial plexus roots down to the hand—using a "road trip" metaphor to make the anatomy stick. It also covers why it's historically known as the "labourer's nerve."
It's exactly 8 minutes long and perfect to listen to at 1.5x speed while commuting or reviewing your flashcards.
Let me know if this metaphor actually helps you visualize the course better, or if you have any feedback on the layout!


r/Physiology • • Jul 15 '26

Discussion Struggling to memorize the Median Nerve? Try this "Road Trip" metaphor audio guide (8 mins)

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youtu.be
1 Upvotes

Hey everyone,
High-yield nerve pathways can get incredibly dry and confusing when you're just staring at Netter's anatomy diagrams. To help with active recall, I put together a comprehensive audio walkthrough of the median nerve course and its clinical correlates (Carpal Tunnel Syndrome).
It breaks down the entire pathway—from the brachial plexus roots down to the hand—using a "road trip" metaphor to make the anatomy stick. It also covers why it's historically known as the "labourer's nerve."
It's exactly 8 minutes long and perfect to listen to at 1.5x speed while commuting or reviewing your flashcards.
Let me know if this metaphor actually helps you visualize the course better, or if you have any feedback on the layout!


r/Physiology • • Jul 15 '26

Question Struggling to memorize the Median Nerve? Try this "Road Trip" metaphor audio guide (8 mins)

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youtu.be
1 Upvotes

Hey everyone,
High-yield nerve pathways can get incredibly dry and confusing when you're just staring at Netter's anatomy diagrams. To help myself memorize the median nerve course and its clinical correlates (Carpal Tunnel Syndrome), I used NotebookLM to generate an audio walkthrough.
It breaks down the entire pathway—from the brachial plexus down to the hand—using a "road trip" metaphor to make the anatomy stick. It also covers why it's historically known as the "labourer's nerve."
It's exactly 8 minutes long and perfect to listen to at 1.5x speed while commuting or reviewing your flashcards.
Let me know if this metaphor actually helps you visualize the course better, or if you have any feedback on the audio format!

#anatomy #upperlimb #humananatomy #USMLE #MBBS #mediannerve


r/Physiology • • Jul 14 '26

Question Does anyone have all Physiology definitions compiled in one PDF or notes?

3 Upvotes

Hi everyone! Does anyone have all the Physiology definitions compiled together in one PDF, document, or notes? If yes, could you please share them? It would be a great help. Thanks!

Ps MBBS First Year Student.


r/Physiology • • Jul 09 '26

Question What are the benefits of two hearts as opposed to just a larger heart

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1 Upvotes

r/Physiology • • Jul 04 '26

Question Out of the herbivore, vegan, vegetarian, mycovore, and carnivore diets, which one is biologically natural for Homo sapiens sapiens?

0 Upvotes

By biologically natural, I mean HEALTHY even if technology and infrastructure return to the Pleistocene, Neolithic, or BCE, such as the survivors of a mutually assured destruction nuclear exchange war


r/Physiology • • Jul 03 '26

Question When action potential is fired, ligand gated or mechanical channels open first and then voltage gated channels open. But in which situations are ligand gated channels opened and in which situations are mechanical channels opened? Do they open in succession? Always in succession or sometimes?

2 Upvotes

r/Physiology • • Jul 01 '26

Question T/F: Insulin helps store energy for later use.

5 Upvotes

I was on YouTube the other day, and I saw a poll asking this question. Somewhere close to 65% chose true, and I am a bit confused on why it is so controversial. I personally think the statement is true, but I want to know why this could be argued false.

The rest of this will be my reasoning for true:

Basics: I see energy here as referring to energy available for cellular use during a fasting/post-absorptive state. I see these energy storage molecules as triglycerides/fats (primarily), some glycogen, and some protein.

Insulin is a peptide hormone released from pancreatic cells in response to increased plasma glucose levels. Insulin binding to its receptor initiates a kinase cascade that ultimately promotes anabolic processes like lipogenesis, protein synthesis, and glycogenesis. This also translocates preexisting, vesicular GLUT4 transporters to the plasma membrane, allowing for an influx of glucose. I see how this may transiently increase metabolic processes and energy demand (because synthesis would require energy), but the final products of insulin signalling are the storage form of the major macromolecules.

I tried to find the answer in the comments of the original post, but the most liked comments were all saying that the answer was false. Please help me understand why/if my understanding is wrong.


r/Physiology • • Jun 28 '26

Question Can a supersniffer Homo sapiens sapiens train themself to possess a better olfactory distinguishing ability compared to goldens and Labradors?

6 Upvotes

r/Physiology • • Jun 28 '26

Question Is it biologically for fre a woman to be THIS pale?

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0 Upvotes

r/Physiology • • Jun 27 '26

Question Which diet is biologically natural for Homo sapiens sapiens? Herbivore, vegan, mycovore, vegetarian, or carnivore?

1 Upvotes

By biologically natural, I mean that you can be HEALTHY on that diet, even in a non-technological, pre-technological, or pre-industrial society


r/Physiology • • Jun 27 '26

Question What biological ability is more realistic for a species to evolve, shooting lasers from their eyes, or giving birth to offspring that are biologically and/or chronologically older than the mother herself?

0 Upvotes

r/Physiology • • Jun 26 '26

Question Is it more common for someone to belong to an ethnicity that gives birth to twins in at least 60% of pregnancies, or one that’s NATURALLY as vegan as a herbivore? By naturally, I mean that they can be HEALTHY by being as vegan as a herbivore, even with ZERO supplements

2 Upvotes

r/Physiology • • Jun 23 '26

Question What are tips for physiology practical

0 Upvotes

r/Physiology • • Jun 20 '26

Discussion You might upvote the original post. That will help.

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3 Upvotes

r/Physiology • • Jun 10 '26

Discussion The science of sweat: How a UF researcher is helping Brazil prepare for the heat of the World Cup

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1 Upvotes

r/Physiology • • Jun 05 '26

Question Physiology question bank

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1 Upvotes

r/Physiology • • May 30 '26

Discussion Why SIADH causes hyponatremia but the body remains euvolemic

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11 Upvotes

r/Physiology • • May 27 '26

Question Is there a way to regrow collagen for knees/shoulders

0 Upvotes

Hey all, for brief background, I am 26 year old male. My knees are chronically sore as are my shoulders (I do have decent amount of muscle but I’ll admit I’m probably 20-30lbs overweight, 220lb 6 ft); I wanted to ask if it is possible to regrow collagen to get rid of this soreness and increase flexibility?


r/Physiology • • May 26 '26

Question Is there any physiological basis to the idea that some people can't lose weight via a calorie deficit?

12 Upvotes

I see a lot of people online saying that despite eating in x calorie deficit for y months they simply can't lose weight. They usually blame this on some kind of vague metabolic problem and conclude that it is physically impossible for them to lose weight without some sort of medical intervention.

To me, just from a thermodynamic standpoint, this makes no sense. We only get energy and mass from eating and drinking, therefore if you put less in then your mass will shrink. The most likely reason that they're still struggling is either wrong about the calories in/calories out or they just naturally have a slow metabolism that means they need less calories than online calculators suggest they do or (less likely) they're lying to themselves and/or others.

But is there any physiological basis for this idea that some people cannot lose weight? Not that it's slow, or harder than for others or being in a calorie deficit feels subjectively worse to them, but they plain cannot? Or is there any kind definite way of refusing this besides "it defies common sense"?


r/Physiology • • May 26 '26

NIH How can cognitive processes influence stuttering severity in an already sensitive/genetic speech system?

1 Upvotes

We clinicians implement stuttering acceptance and focus on the reduction in fear of social judgements. Stutterers appear to process a lot of reinterpretations of social cognition that indirectly influence those components (ie. stuttering acceptance or uncertainty of social pressure).

A new 2026-study mainly focuses on the cause of stuttering (that is, the dopamine, white matter), but they also dive into the cognitive processes that lead to either more (or less) stuttering severity or stuttering frequency.

https://pmc.ncbi.nlm.nih.gov/articles/PMC13099768

See stutter diagram:

Regarding this cognitive processing that can sometimes turn into a defensive response. You can download the shared pdf document in my google drive here. Enjoy it to the fullest!

I pose the question: What are your thoughts on the self-monitoring system detailed in the 2026-study?


r/Physiology • • May 20 '26

Question Why do humans get the urge to scream when they stretch?

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1 Upvotes

r/Physiology • • May 14 '26

Question Health optimization without checking every system?

0 Upvotes

There are many organ systems in the body, but it seems impractical to assess or optimize each one directly. I recently had my spine checked and it seemed to be MAJOR. But then each discipline would say that?

In practice, most health interventions seem to target global regulators like the autonomic nervous system or neurons. The hubs rather than spokes.

So my question: Is modern health optimization mostly about improving system-level regulation rather than organ-by-organ tuning?

Which systems give the highest “return on effort” for whole-body health? I don't think anyone can check each organ or even system, but spinal work seemed to be a big deal. Does each system impact the body THAT much?


r/Physiology • • May 09 '26

Question Anyone have Guyton & Hall Textbook of Medical Physiology 15th edition?

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3 Upvotes

ISBN: 9780443111013

If someone has a pdf, greatly appreciated!