Why does the risk of cancer increase in AIDS patients?
A) Suppressor T cell activity resets the normal immune response.
B) Immune surveillance is depressed.
C) Cell-mediated immunity is enhanced.
D) There is an increase in the circulating antibody levels.
E) The virus enters human leukocytes by receptor-mediated endocytosis.
B) Immune surveillance is depressed.
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The parietal pleura would represent a serous membrane ________
A) lining the abdominal cavity B) covering the heart C) covering individual lungs D) lining the thoracic cavity
Which membrane transport process(es) is/are abnormal in people with cystic fibrosis? What is the consequence of the abnormal transport? Which organ systems are affected? How is this disease treated? How long do cystic fibrosis patients normally live? What are some of the possible causes of death related to this disease? What is the cause of cystic fibrosis?
You are walking to school one day when you notice an alien spaceship that has crashed in a nearby field. You and some other physiology students collect samples from the beings inside of the spaceship. First, you collect a liquid sample of what appears to be alien blood so that you can test for the concentration of solutes inside the alien blood cells. You then extract some of these cells, place them in various concentrations of glucose in water, then look at them under the microscope. Below is what happens to the cells when they are placed in various concentrations of glucose:
While jogging on a trail you come upon a child who fell off her bike and has severe facial lacerations that are bleeding profusely. In order to most effectively curtail the bleeding, you would put pressure on the:
A) horizontal ramus of the mandible just anterior to the attachment of the masseter. B) horizontal ramus of the mandible directly inferior to the angle of the mouth. C) infraorbital foramen. D) lateral aspect of mastoid process. E) coronoid process of the mandible.
Hematopoiesis occurs in the red bone marrow, which is also known as tissue.