0
Fetal pigs that are prepared for dissection may have the lungs inflated to make them easier to identify and dissect. There is also a chance the piglet was born alive when its mother was slaughtered (fetal pigs come from mother pigs slaughtered for ham/pork) and then euthanized.
Jordan B
Add your answer:
Earn +20 pts
If a section of a lung is cut from a fetal pig and dropped in a glass of water it will sink as it contains no air. Give an explanation why the lung of a fetal pig would not contain air.?
The fetal pig is in amniotic fluid. There is no air in the womb and the lungs do not inflate until the pig is born.
Why will the segment of lung tissue cut from the fetal pig sink when placed in water?
Healthy lung tissue from an adult pig will float in formalin because there is a (relatively) large volume of air trapped in the alveolar sacs. Fetal pigs haven't taken a breath yet, so there is no air in the alveolar sacs. This is why the lung tissue from a fetal pig will sink in formalin. Incidently, this is also how medical examiners can determine if a child was stillborn or was born alive and then died - check to see if a section of lung from autopsy floats in the formalin.
Why are lung bypasses important in fetal hearts?
The lungs have no job to do anyway as the oxygen is not drawn from the air until birth. All nutrients come through the umbilical cord.
Does fetal pig lung tissue sink in water?
Yes, the aveloar sacs have not been inflated w/ air as the pig has never taken a breath. Niki C
If obstruction is in right primary bronchus how would the oxygen hemoglobin curve for right lung compare to left lung?
it would get to the other lung because the air passes throught a diffrent tunnel it would get to the other lung because the air passes throught a diffrent tunnel
Can your body function without the lung?
No.Because there would be no air flow.
What would be the effect of a pneumothorax (air in the intrapleural space) on the lungs and breathing?
The affected lung would collapse or not be able to expand fully, so lung ventilation would decrease.
What would happen if air got into the pleural space between two pleural membranes?
The two pleural membranes should be touching. If air creates a space between them the air will push the lung down and prevent it from filling with air. This is known as a collapsed lung, or pneumothorax. The air between the pleural membranes must be removed to reinflate the lung.
What are lung cells and what do they do?
Lung cells are little bubbles that take in air and take out air
What is a pneumothorax?
It is a partial lung collapse, due to an air pocket on the outside of the lung, which pushes against the lung.
Why is it better for a lung to consist of thousands of tiny air sacs rather than one large air sac?
Consisting of thousands of tiny air sacs increases the surface area inside of the lung which allows for better gas exchange. If the lung was made of one larger air sac, you would not be able to exchange as many gases (oxygen/CO2) with each breath.
Could life exist on Earth if the air contained only oxygen?
No. The oxygen would be too concentrated and we would die.
