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Glucose and oxygen are the reactants when respiration takes place in cells.Oxygen is absorbed into the blood in the lungs. How are the lungs are adapted for this function?
Inside the lungs are tiny structural and functional units called alveoli. Alveoli arranged in alveolar ducts and sacs are covered by a membrane called the respiratory membrane. The respiratory membrane...
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Are the lungs above the diaphragm? Are the lungs muscular?
The diaphragm is located at the base of the ribs, below the lungs. The diaphragm a muscular structure that when contracted you can say it increases the area of the...
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One type of allergic reaction results in constriction of the bronchial tubes, which interferes with the passage of air into and out of the lungs. Is this type of allergic reaction most closely associated with asthma, emphysema, or bronchitis?
Asthma is a chronic lung inflammation of the airways( not the parenchyma) that causes recurrent episodes of wheezing, breathlessness, chest tightness and cough particularly in the early morning. In...
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Is the pH of the small intestine lower or higher than that of the stomach? Why is the pH of the small intestine not the same as that of the stomach?
Stomach is very acidic due to gastric lipase and HCl required to chemically digest most foods we eat. Intestines have weaker and more diluted acids as a result of other...
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Why is the stomach such a muscular organ? How is the stomach lining adapted to its function?
The stomach is lined with mucus to protect the stomach from it's own digestive juices such as Pepsin( digests protein) and Gastric Acid( hydrochloric acid) digests anything. The mucus prevents...
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Why is a patient not allowed to eat or drink when they have gastrointestinal bleeding?
When you eat and/or drink something through the mouth, it will pass through your esophagus, unto the stomach and the intestines which will trigger peristalsis. Imagine that someone who has...
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Why can a baby not eat meals such as those we eat, straight away?
It does not have teeth which serve a great role in masticating the food well. It's bones are not well developed which also include the jaw...
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How do you make an edible cake liver, lungs, intestines, and stomach? I have to turn in a project for social studies, and I have to make edible body parts. What are some ideas for how to do this?
Fun project! Usually you would bake a cake – in the shape of the organ if possible – and then just decorate it with colored icing to define the desired...
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What is the use of $HCl$ in the stomach? What happens in case of excess $HCl$ secretion? How are stomach ulcers caused?
In most of the vertebrate stomach hydrochloric acid is secreted. It kills bacteria along with food entered. Acid environment in stomach cuddles the milk. Some of the proteins are...
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Does your body digest food better or faster If you eat while standing up and continue standing after you eat? Why should you avoid lying down after you eat?
While our bodies CAN process food under a variety of conditions, poses and stressed, it is most effective when the alignment of the first key organs in the pathway are...
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