OPTIONS:
A. "The pain lasted about 45 minutes."
B. "The pain resolved after I ate a sandwich."
C. "The pain got worse when I took a deep breath."
D. "The pain occurred while I was mowing the lawn."
Answer:
D. "The pain occurred while I was mowing the lawn."
Explanation:
Angina Pectoris, which can also be referred to as stable angina, is a temporary chest pain that doesn’t last up to 20 minutes. This pain is triggered when one engages in stressful physical activity or is emotionally stressed, causing reduced blood flow to the heart, which results in insufficient supply of oxygen to the myocardium.
The client stating that the pain occurred while mowing the lawn, strongly suggests angina pectoris,which is triggered by physical activity, as a result of the heart muscles not getting enough oxygen.
4= very brisk, hyper active w/ clonus, indicative of disease
3= brisker than average, may indicate disease
2= average, normal
1= diminished, low normal
DNA helps scientists to better classify organisms is because each organ has a specific kind of DNA. For an example, brains and hearts have many small types of RNA. So if a scientists see some RNA they know that its a heart or a brain.
Answer:
The correct answer will be option-C
Explanation:
In an organism, the mechanism of gas exchange depends on the partial pressure and total pressure of the gas. Partial pressure is the pressure of the gas exerted by a single type of gas in a mixture of gases and this pressure determines the movement of gases in the system.
The diffusion of the oxygen from the alveoli to blood capillaries depends on the partial pressure as the partial pressure of oxygen is high in alveoli measured about 104 mmHg compared to the capillaries measured about 40 mmHg.
This difference in the pressure generates pressure gradient which leads to the movement of the oxygen from alveoli to the capillaries as the movement takes place from higher to lower concentration gradient.
Thus, Option-C is the correct answer.
