To keep out dirt and other bad things
in the tiny air sacs (alveoli) at the end of the bronchial tubes.
Answer:
C.
Explanation:
The Quiz is pretty hard, so if I got this one wrong, feel free to tell me and I'll change it.
The answer is PET (positron emission tomography) scan. It lets doctors measure a variety of activity
including blood flow, blood volume, oxygen usage, tissue pH (acidity), glucose
(sugar) metabolism, and drug activity. PET is very beneficial in watching the
activity of cancerous tumors. Because malignant cells grow at such a fast degree,
they absorb more sugar than normal cells. Sugar can be added to a radioactive
substance, and the PET scan can detect the areas of the brain through which the
sugar flows. This way the doctor can give a preview into how aggressive a tumor
is or how its growth is slowed by treatment remedies.
This is false, this disease is when there's plaque build up in the artery, high blood pressure is a symptom of this.
