Questions tagged [physiology]
The study of the normal function of living organisms and their anatomical parts and the means by which their normal functioning is achieved.
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Can point group symmetry generate physiologically plausible ECG waveforms? [closed]
A 2024 pre print (doi.org/10.1101/2024.10.18.619135) claims to derive a textbook-quality ECG using only the multiplication tables of point groups of order ≤ 10 and a handful of Gaussian envelopes. ...
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Glomerular Filtration Rate and Volume of Plasma in the Kidneys
How much Plasma goes throught the kidneys each day?
Unglaub's Textbook on Physiology states that the kidneys produce 180 litres of primary filtrate but only 20% of the plasma gets filtered (one fifth)....
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What is the contribution of plasma proteins to osmosis if semi-permeable/cell membrane is impermeable to it?
Clinical laboratories report the plasma composition of ions (e.g., Na, K") in units of milliequivalents (meq) per liter of plasma solution. However, for cells bathed by interstitial fluid, a more ...
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Does a wet nose facilitate human smelling?
Humans have the nasal mucosa, which has some similar functions to similar organs on dogs: to dissolve odor particles and facilitate smelling. It is also known that these animals may like to keep their ...
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How do the ionic currents of phase 1 and 2 of ventricular action potential work?
I was reading about the cardiac electrophysiology from the "Medical Physiology" textbook. These parts confused me:
Phase 1 is the rapid repolarization component of the action potential (...
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Are there “autonomic afferents,” or is the ANS strictly efferent by definition?
In neuroanatomy I was taught that the autonomic nervous system (sympathetic, parasympathetic, enteric) is efferent only, while visceral sensory fibers are classified as GVA/SVA and merely travel with ...
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Vasoconstriction affecting blood pressure [closed]
In the human body, if a section of a blood vessel is constricted, does the blood pressure in the constricted section increase or decrease?
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How does the Donnan effect generate an electrical potential?
I've been trying to study the Donnan equilibrium, and so far everything is clear except this: everywhere I've looked says the Donnan equilibrium maintains electroneutrality in both compartments. Yet, ...
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What is the purpose of a hamster's tiny, seemingly useless tail?
I was thinking about why my hamster has this tiny, useless tail. Does anyone know its purpose? I was researching this and found that there tails can be tiny because it makes it easier for burrowing ...
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What is the difference between the linear integral and linear proportional-integral feedback model?
I am a student of Biology, and I was reading a paper called Dynamical Compensation in Physiologic Circuits by Karin et al. And I had a question regarding the content of the paper - it may be a basic ...
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C4 Pathway of Dark reaction
I am stuck at understanding of role of malate in c4 pathway. Please help me with this.
The specific question I want to know is-
Why malate is preferred as a transported molecule from mesophyll to ...
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Blood Pressure and Compliance
Need some insight into the relationship between blood pressure and arterial compliance(Change in Volume/Change in Pressure). Most text books suggest that systolic blood pressure has an inverse ...
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Why does only 97% Oxygen transport occur as oxyhemoglobin?
I learnt that 97% oxygen is transported as oxyhemoglobin where as 3% is transported in the dissolved state through plasma. Moreover I've also seen that in the Oxygen Haemoglobin dissociation curve, ...
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importance of pigments involved in photosynthesis [closed]
How do the accessory pigments(chl-b and carotenoids) help in during the process of photosynthesis? Can I please get a detailed explanation about it. I know that it helps in increasing the efficiency ...
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Acid-base balance in plants
Question: How do plants extrude excess acid/alkali, at the level of the whole organism?
I have no expertise in botany at all. I come from a medical background and sought to find a similar treatment of ...
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