I believe that local controls are what causes reactive hyperemia to increase tissue perfusion. Reactive hyperemia or venous hyperemia is the transient increase in organ blood flow that occurs following a brief period of ischaemia.
Tissue perfusion is the decrease in oxygen resulting in the failure to nourish the tissues at the capillary level. Local blood flow regulation involves the rapid control of arterial vasomotion based on the metabolic needs of the surrounding tissues and cells.
When the neuron is at rest, what is primarily responsible for moving potassium ions OUT of the cell?
a concentration gradient
an electrical gradient
both a concentration gradient and an electrical gradient
the sodium-potassium pump
Answer:
a concentration gradient
Explanation:
At rest, the sodium-potassium pumps pump the two potassium ions into the cell for three Na ions moved out of the cell. This creates a higher potassium concentration gradient inside the cell. This concentration gradient moves the K+ out of the cell. Movement of positively charged K+ out of the cells make the inside of the membrane negative with respect to the outside. This is how the negative resting potential is maintained when neurons are nor firing the action potential.
Answer:
polymyositis
Explanation:
Polymyositis is the disease in which inflammation of voluntary muscles and associated tissue occurs in various body parts. So it affects both sides of the body. Most of the weakness is seen in muscles of the shoulder, upper arm, thighs, neck, and hips.
This condition makes some jobs difficult for patients like difficulty in climbing stairs or lifting objects, etc. Women are at higher risk for this disease than men. Till now it's cure is not available but several therapies and physical exercise can help in gaining muscle strength.
Answer:
C
Explanation:
<em>The error that the student made was to place the containers for the different fruits in different areas around the school.</em>
In order to ensure that each contain receives the same treatment, they should have been placed in the same area around the school. Different areas around the school might have varied populations of fruit flies, hence, jeopardizing the result.
<u>The containers should have been subjected to the same conditions in order to ensure an unbiased outcome.</u>
The correct option is C.
