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Mashcka [7]
3 years ago
14

Which of the following BEST describes what alveoli are?

Health
2 answers:
Varvara68 [4.7K]3 years ago
8 0
Alveoli small balloon-like structures which are responsible for the oxygen exchange in the lungs  across the membranes. These are attached to the branches of the bronchial passages. These alveoli inflate and deflate with inhalation and exhalation. Answer is C. 
Murljashka [212]3 years ago
6 0

Answer:  

They are found at the end of bronchioles.

Explanation:

Alveolar sac can be defined as the space which helps in maximizing the surface area  for the exchange of gas. It allows the lungs to exchange the carbon dioxide and oxygen in between the lungs and bloodstream.

Further explanation:

The exchange of gases in the human body   takes place through the respiratory system. It starts with the nasal cavity and ends on the alveolar sac where the the actual exchange of gases takes place.

The carbon dioxide from the bloodstream is diffused into the lungs and the oxygen from the lungs is diffused into the blood of the body.

The alveolar sac is the structure which increases the surface area maximum times in order to allow maximum exchange of gas.

After the exchange of gases the oxygenated blood is  distributed to the various organs of the body and the deoxygenated  blood from the organs is brought back to the lungs for purification.

Learn more:

1. What is the function of alveolar sac in respiratory system? brainly.com/question/2923340 (answered by brainly user)

2. How does the structure of the alveoli allow for its function of gas exchange?brainly.com/question/11975413 (answered by histrionicus)

Keywords

Respiratory system, alveolar sac, oxygen, carbon dioxide, deoxygenated, oxygenated.

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The laboratory investigation is to check for the levels of pancreatic enzymes amylase and lipases in the blood.

Explanation:

The pancreas is an organ that is located in the abdomen and produces digestive enzymes and hormones that aid digestion, and empties into the small intestine.

When the pancreas is inflamed, these enzymes will leak into the blood cells the concentration of the enzymes in the plasma or serum will increases above the normal range, this mostly occurs in pancreatitis (which is the inflammation of the pancreas) or a mechanical injury to the pancreas as described in this question. These enzymes are found in other organs too, but they are mainly found in the pancreas in a larger concentration.

The two main enzymes that are assayed for in the laboratory are; Amylase and lipase. Amylase is an enzyme that digests carbohydrates, for the amylase test, blood or urine is used and the patient is asked to stay away from drugs that affect the amylase levels prior to the test procedure. The normal range of amylase in the blood is 23-140 U/L and an amylase concentration of > or = 200 U/L suggests injury to the pancreas.

Lipases are enzymes that breaks down lipids into fatty acids and glycerol, this test is more sensitive than the amylase test because the liopases are reabsorbed into the blood stream in the renal tubules hence maintain a constant concentration in the blood and can accurately be used to quantify the extent of damage to the pancreas. The normal range is  0 - 160 U/L and in the case of pancreatic injury, can have a 2 or 4 fold increase in concentration.

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3 years ago
Describe the following influences on our foods choices and provide an example of each
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Learn more about cyclobenzaprine here

brainly.com/question/27882474

#SPJ4

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