1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pychu [463]
3 years ago
10

Your heart has four valves. Normally, these valves open to let blood flow through your heart, and then shut to keep it from flow

ing backward. Sometimes the valves don't work properly, causing some or all of the following disorders. In regurgitation, blood leaks back through the valve in the wrong direction. In valve prolapse, the valves have "floppy" flaps and don't close tightly. It's one of the most common heart valve conditions. Sometimes it causes regurgitation. In stenosis, the valve doesn't open enough and blocks blood flow. Based on your knowledge of the heart, explain how regurgitation, valve prolapse, and stenosis each adversely affects blood flow and the oxygenation of body tissues.
Biology
1 answer:
Ulleksa [173]3 years ago
7 0

Regurgitation influences the flow of blood by mixing the oxygen-poor blood with the oxygen-rich blood. Due to this, the heart has to pump more to oxygenate the entire body, leading to the rapid, and fluttering heartbeat. The tissues get oxygenated but regurgitation could be fatal, as the heart cannot function overtime forever.  

Valve prolapse influences the flow of blood when the flow of blood backs up. This leads to an irregular or racing heartbeat. Even at certain occasions, the blood can flow back to the lungs. However, there is not a huge influence in the oxygenation of the body tissues.  

Stenosis makes the ventricles to pump overtime to get enough blood through, and in the process, the ventricles thicken. This functions for a while, however, it will result in heart failure as the heart cannot do it for entire life. The tissues are oxygenated, but it will be an issue due to overtime.  


You might be interested in
One of the most important functions of cholecystokinin (CCK) is to _____.
vesna_86 [32]
The cholecystokinin generates a satiety or nausea sensation to the brain, quenching the appetite once it has eaten enough, occurs naturally in the human organism in the small intestine, secreted from the cells of the duodenum and jejunum to promotes fats absorption in the digestion process.
All that is slow gastric emptying.
6 0
3 years ago
How are alligators and crocodiles different?
Hoochie [10]

Answer:

A.) Alligators have round snouts, while crocodiles have pointed, V-shaped snouts.

Explanation:

The difference in crocodiles and alligators is in their snouts.

4 0
3 years ago
Read 2 more answers
Modern cell theory is best described as being based on
faltersainse [42]
Cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.

(Hope this helps!!)
4 0
3 years ago
Rupert is studying two different cells. His professor asks him to determine which cell is a plant cell and which is a fungal cel
ch4aika [34]
A-The composition of their cell walls

Explanation: plant cell walls components is glucose. Fungi cell will components is chitin
4 0
2 years ago
As a cell grows, its _____ increases more than its _____.
Andru [333]
As a cell grows, its volume increases more than its surface area  so the answer is C 
6 0
2 years ago
Other questions:
  • Jenna found a mushroom growing at school. Which question can a dichotomous key help her answer?
    15·2 answers
  • ANSWER SCIENCE ASAP PLEASE
    12·1 answer
  • What is the specific energy an electron in an atom or other system can have?
    7·1 answer
  • Which of the following steps does not take place during cellular respiration?
    8·2 answers
  • Which of these organisms does not need a digestive system because it produces its own food? A)cactus B)bee C)tiger D)dinosaur
    10·2 answers
  • Suppose that this population of mice has stabilized so that both white and brown appear. White mice survive better in the winter
    6·1 answer
  • For a typical human aorta, the diameter of the lumen is 30 mm and the thickness of the wall is 4 mm. Assuming a blood density of
    5·1 answer
  • what is the major difference between the normal stomach cells and cancerous stomach cells of the chicken?
    10·1 answer
  • A cell with a diploid number of twelve chromosomes undergoes meiosis. What will be the product at the end of meiosis?.
    7·1 answer
  • Question 3
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!