Doug·las bag (d g l s)n. A receptacle for collecting expired air to determine oxygen consumption in humans under various work conditions. |
bag
a sac or pouch. A farmer's term for udder.
bag-in-a-bottle
a basic form of ventilator used in gaseous anesthesia in which an expandable bag is enclosed in a bottle. Injection or extraction of air in the bottle causes expansion and contraction of the bag and controls ventilation.
Douglas bag
a receptacle for the collection of expired air, permitting measurement of respiratory gases.
fecal bag
strapped to an animal in such a way as to catch the fecal output. Used in experimental work or clinical investigation in ambulatory animals especially sheep.
hard bag
a name given to the udder induration seen with some cases of maedi.
sterilizing bag
any of several types of paper or plastic bags used to package individual instruments in the autoclaving process.
urine bag
a bag strapped to the animal, usually an ambulatory sheep, in such a way as to collect the total urinary output.
bag of waters
the membranes enclosing the amniotic fluid and the developing fetus in utero.
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