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lawyer [7]
3 years ago
9

During strenuous exercise, tv plateaus at about 60% of vc but minute ventilation continues to increase. explain how that would o

ccur.
Biology
2 answers:
Marizza181 [45]3 years ago
8 0

Answer:

The elevation in the residual volume, which takes place leads to a corresponding reduction in the expiratory reserve volume and inspiratory reserve volume. Though at rest, the total volume is large enough to offer enough concentration of oxygen required by the tissues and to eradicate the carbon dioxide produced by the tissues.  

The enhanced strenuous exercise like climbing a flight of stairs needs more oxygen and produces more carbon dioxide. However, as resting inspiratory reserve volume and expiratory reserve volume have diminished, the total volume cannot enhance much to meet the gas exchange requirement of the body and the person becomes short of breath.  

elena-14-01-66 [18.8K]3 years ago
7 0
The body is made to adapt; so it tries to adapt to its current environment. The breathing rate increases to help add more oxygen into the system, slowly boosting endurance as a survival mechanism from ages ago when we actually had to outrun predators. It was likely more efficient back then.
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Place the microscope slide on the stage (6) and fasten it with the stage clips.  

Look at the objective lens (3) and the stage from the side and turn the focus knob (4) so the stage moves upward. Move it up as far as it will go without letting the objective touch the coverslip.  

Look through the eyepiece (1) and move the focus knob until the image comes into focus.  

Adjust the condenser (7) and light intensity for the greatest amount of light.  

Move the microscope slide around until the sample is in the centre of the field of view (what you see).  

Use the focus knob (4) to place the sample into focus and readjust the condenser (7) and light intensity for the clearest image (with low power objectives you might need to reduce the light intensity or shut the condenser).

When you have a clear image of your sample with the lowest power objective, you can change to the next objective lenses. You might need to readjust the sample into focus and/or readjust the condenser and light intensity. If you cannot focus on your specimen, repeat steps 3 through 5 with the higher power objective lens in place. Do not let the objective lens touch the slide!

When finished, lower the stage, click the low power lens into position and remove the slide.  

Your microscope slide should be prepared with a coverslip over the sample to protect the objective lenses if they touch the slide.  

Do not touch the glass part of the lenses with your fingers. Use only special lens paper to clean the lenses.  

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masha68 [24]
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