If both ACTH (adrenocorticotropic hormone) and cortisol levels increase, which of the following would occur?
A. ACTH production is increased even more by positive feedback.
B. High cortisol levels will begin to cause ACTH levels to decline.
C. High ACTH levels will begin to cause cortisol levels to decline.
D. Aldosterone levels will increase.
E. None of these choices are correct.
B
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You are a technician in a neuroanatomy lab, and it's your first day of training to learn a technique of labeling neurons. Your boss tells you that you will fill individual motor neurons, by injecting horseradish peroxidase (HRP) conjugated to tetanus toxin, into a skeletal muscle. How could this possibly label the neurons?
What will be an ideal response?
The spleen is normally found in which abdominopelvic region?
A) hypogastric
B) left inguinal region
C) right hypochondriac
D) right lumbar region
E) left hypochondriac
Usually the urine of someone with a high-protein diet does not contain any bicarbonate ions, as all of it that is filtered is reclaimed from the tubules.
Answer the following statement true (T) or false (F)
What cells within the alveoli are capable of phagocytosis and can therefore engulf particulate matter that might reach the alveoli?
a. alveolar macrophage b. alveolar septal cells c. alveolar NK cells d. alveolar plasma cells