Dictionary » A » Alveolus



a small cell containing air in the lungs, a sac-like dilation of the alveolar ducts in the lung (plural: alveoli)

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Questions about cells, atoms, respiratory system

... of being exact, that the link you provided links to this: http://en.wikipedia.org/wiki/Alveoli Where it is stated that an adult alveolus is 0.2-0.3mm in diameter. Probably right on the boundary between microscopic and macroscopic for someone with exceptionally good vision, and ...

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by alextemplet
Tue Apr 28, 2009 7:22 pm
Forum: General Discussion
Topic: Questions about cells, atoms, respiratory system
Replies: 7
Views: 9754

breast problem

... so. As far as I know, breast cells are not the target of that hormone. GH especially works in bone cells. Prolactin works on breast cells too (alveolus). But naturally this hormone is prepared for lactation. About the commercial medicine, I think it usually contains estrogenic substance as ...

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by Dr.Stein
Sun Oct 08, 2006 2:47 am
Forum: Human Biology
Topic: breast problem
Replies: 41
Views: 28125

Re: Respiration

... the surface tension of the fluid. This will follow the law of laplace, whice states that inward pressure is inversely related to the radius of the alveolus. --> when the radius of the alveolus is very small (as in a collapsed alveolus) the surface tension is huge and to re-open the alveolus, ...

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by sdekivit
Thu Dec 29, 2005 10:54 am
Forum: Human Biology
Topic: Respiration
Replies: 5
Views: 2760

Oxygen Atoms in the Body

... Also I don't know how to do a Mass Balance for this: -Aveoli -membrane -bloodstream -hemoglobin -cells -return via veins back to heart -pump to alveolus -capillaries -where gas exchange takes place -whole process begins again Lost -dissovled into intercellular fluid -exhaled -used by microbes ...

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by waywardtigerlily
Mon Oct 10, 2005 6:51 pm
Forum: Human Biology
Topic: Oxygen Atoms in the Body
Replies: 0
Views: 1669

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