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Questions tagged [physiology]

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2
votes
1answer
17 views

Why does a rise in cAMP potentiate PGI2?

In my book Principles of Physiology (by Debasis Pramanik), it is mentioned that dipyridamole inhibits phosohodiesterase which increases cyclic adenosine monophosohate (cAMP) which potentiates ...
3
votes
1answer
37 views

Ventricular diastolic pressure?

So, I have been wondering and couldn't find texts explaining this, but why is the diastolic volume of the circulation ~80, while that of the ventricles is almost 0. To phrase it another way, why does ...
2
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1answer
30 views

Positive deflection of an ECG

I understand that the voltage will be positive as measured by the ECG but I was wondering why the voltage reaches a maximum exactly at the midpoint. Is there a physiological reason (like sodium ...
0
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0answers
31 views

What is the genesis of qualia?

I am knowledgable about qualia being a subjective experience derived in the mind, although I lack a physiological understanding on how it occurs. I am able to determine that qualia exists in the ...
2
votes
1answer
46 views

How much do our bodies heat up when we shiver?

I think that this question is on topic for this site as it states human physiology and pathophysiology is allowed. If not then please let me know in the comments and I shall delete this Question. ...
2
votes
1answer
46 views

Can there be advantages to polydactyly?

I have been reading about polydactyly and found that surgery is only necessary in certain cases. It depends on way the extra digit on the hand or foot is attached. For example, central polydactyly (...
9
votes
2answers
440 views

Can cigarettes help trigger bowel movements?

There is a popular belief that a coffee and a cigarette in the morning contributes to having a bowel movement at that time. There is already somewhat of an answer for the question to why coffee seems ...
4
votes
2answers
72 views

How does one determine which textbook to start with when wanting to build knowledge in medical sciences? [closed]

The medical field is vast and there is a great deal of literature, including textbooks. Is there a clear progression of textbooks that one could go through in order to build knowledge in the medical ...
4
votes
1answer
77 views

“Blood rushing to the head” during handstands: How is it regulated?

Many people who start practicing handstands or headstands report discomfort in their head, ranging from a mild sense of fullness to "my head is going to explode." The standard response in online ...
4
votes
1answer
159 views

To what degree does tactile stimulation affect muscle tone?

Hard to find the appropriate board for this, but I'm after an answer from a neuro-perspective. A Naprapath once tested the tone of different muscles concluding that I was, quoting, (globally) "...
2
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0answers
69 views

Is autism a mental illness or a physical illness?

I mean, autistic patients have a special eating for protein deficiency, and they also have psychotherapy. So ,Is autism a mental illness or a physical illness?
0
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1answer
50 views

Calculate blood coming out from cut blood vessel per minute

I am probably searching for some math equation which takes BPM and some specific blood vessel index to calculate blood outcome.(maybe including hearth entropy) If for example we took right subclavian ...
8
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1answer
177 views

Can oversleeping be harmful to overall health?

Is it worse than undersleeping, especially for healthy development? Does it have any benefits? I would like to know both physical and mental effects (or diseases?).
7
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1answer
1k views

How does the Jendrassik's manoeuvre reinforce reflexes?

According to Wikipedia, The Jendrassik maneuver is a medical maneuver wherein the patient clenches the teeth, flexes both sets of fingers into a hook-like form and interlocks those sets of fingers ...
0
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0answers
22 views

What's the exact value of blood Ph and how is it corrected

what is the exact value of the blood ph, how is it corrected and at what precision ? Has there even been a real time high precision analysis of the blood ph ? where we could see the correction ...
2
votes
1answer
869 views

My saliva turns sour when I'm angry. Is it a common phenomenon? [closed]

Every time I get angry, my saliva turns unpleasantly sour (or at least it feels such like that - it is sour and it burns me on the back part of the upper palate or somewhere there). As kid I thought ...
1
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0answers
32 views

What is the mechanism by which diarrhea is triggered?

I know that many things, from stress to pathogens, can cause diarrhea. But I was curious what in the digestive tract detects that something is wrong (eg are there chemoreceptors which find problems, ...
1
vote
1answer
1k views

Can weak people use their feet when doing CPR?

Could doing CPR with a foot cause harm to the recipient? In a situation where the rescuer were unable to continue due to fatigue of the arms, is there a way to safely do CPR with the foot?
1
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0answers
81 views

What is the indirect - direct bilirubin ratio in the blood in physiological conditions?

What is the ratio of amount of indirect and direct bilirubin in the blood in a healty individual?
0
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2answers
79 views

Should everyone take an annula flu vaccine?

Flu is a disease of all ages, with worst complications and risk of death in babies and the elderly, but people of all ages can get very sick or be hospitalized.
0
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1answer
37 views

What's up with migraine auras? Why do they occur sometimes with migraines, but not always? What are they even?

When I was a small child, I thought I was performing magic whenever these migraine-auras developed, and I would ask my younger brother if he wanted to see a magic trick. I'd have him close and open ...
3
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0answers
174 views

Weight loss during death

Yesterday, a family member and myself were discussing the dying process (a family member recently died). It was brought up to me that - supposedly- the human body losses weight at or very near the ...
2
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0answers
46 views

Why/how does stress sometimes cause a spike in WBC or even a fever?

I've noticed a direct correlation between a spike in my WBC (when I don't have an detection of a viral or bacterial infection) and sometimes (but pretty rare for me), an elevated body-temperature that ...
5
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0answers
27 views

Correlation between pre-pregnancy training level of abdominal muscles and the risk of getting diastasis recti

Is there any evidence that (very) strong or (very) weak abdominal muscles before becoming pregnant increases or decreases the risk of developing diastasis recti during pregnancy? If so, what are the ...
3
votes
3answers
198 views

Do adult humans need to drink milk

To the best of my knowledge, most mammals cease to drink milk past infancy. Humans, on the other hand often substitute their mothers breast milk with that from other sources like cattle (or soy, ...
3
votes
1answer
63 views

Effects of eating healthy food for a limited amount of time

if we for example went on a healthy life style for a limited amount of time like 3 months. Then, we reverted back to our less healthier life style that we initially had. Will the reverted for (less ...
0
votes
2answers
138 views

What is the field of medicine divided into? E.g. Anatomy and physiology

What are all of the 'sub-categories' what make up the field of medicine? E.g. physiology and anatomy. I'm looking into lectures to learn so please list the fields, places for potential resources and ...
1
vote
1answer
206 views

Is it possible to tell if a person is awake or sleeping by capturing his finger print at that moment?

Consider A is a person, is there any possibility to find if he is awake or asleep?, Maybe the lines on the finger be compressed or the blood flow might be low while sleeping.
7
votes
1answer
171 views

Does exercising lower your lifespan?

I read that the consumption rate (Cal) of stronger muscles while resting is higher than that of less dense muscle tissue. Kleiber's Law and Rate of Living Theory states that organisms have circa the ...