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15
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3answers
1k views

What causes a 'stuffy' or 'runny' nose when you have a cold?

When humans get the common cold, a common symptom is a stuffy or runny nose. Is that the body's immune response or is that the virus's doing?
2
votes
1answer
77 views

Fast standing and the heart's insufficient accommodation of the increased venous return

Assume you are 45 minutes on the supine position. Furthermore: you stand all of a sudden and fast and without sympaticus activity. The venous return (smooth musculature of vessels) accommodates ...
2
votes
1answer
205 views

What is the cause of dry cough?

I first thought this question in the case of the cause of dry throat after 3-day recovery of dry cough? but then I realised that the cause of dry cough can be a general thing. Assume the person ...
0
votes
1answer
74 views

Parallel Autonomic regulation of Cough and Runny Nose

I describe here the serous inflammation of runny nose. Cough is mediated by Cough center. I think Runny nose is also controlled by the autonomic nervous system and probably by some reflex. Assume ...
0
votes
1answer
25 views

Which ionic channels of Pacemakers can work in very low frequencies in extrasystole?

At frequency 0-3 Hz. Like computer processors which can work at low frequencies and controlling under- and overvoltage. Normal most significant channels are Ca2+ and K+ that are changing. However, I ...
0
votes
1answer
34 views

Manifestations of open foramen ovale in adults

I read that foramen ovale opens in 30% of adults. I do not know how much of these openings can then close again. Probably, none. It is not pathogenic if no symptoms. It allows blood to enter from ...