Answer:
<h3>Buck has several family members who died from different cancers. He wants to know if Medicare covers cancer screening. What should you tell him? ... Original Medicare covers ambulance services.</h3>
Difussion occurs from a high concentrated region to a low concentrated region. The velocity of diffussion is proportional to the differential of concentrations. In the lung arrives blood with low levels of oxygen while the long is rich with fresh oxygen so the oxygen flows from the lung tissues to the blood.
The other tissues consume oxygen continually them they get poor in oxygen and so the oxygen that is in the blood diffuses to the tissue that is poor in oxygen.
Answer:
Prolong exposure to stress causes a continuous production of cortisol, which can lead to depression and fatigue.
Explanation:
HPA axis is the hypothalamic–pituitary–gonadal axis. HPA axis is often taken as a body;s stress system, which controls the amount of cortisol and other stress hormones.
Prolong exposure to stress, increases the cortisol production in body. Prolong stress can also cause certain changes to the neurons located in paraventricular nucleus, ultimately resulting in sustained activation of the axis. Long term activation of the axis causes negative feedback mechanism and ultimately causes fatigue, exhaustion, headache and depression etc.
If it cannot perform basic or normal tasks is has reached an unsafe level of fatigue
