The most common stimulus for prodding endocrine glands into action is ________.
A) hormonal
B) humoral
C) neural
D) direct gene activation
Answer: A) hormonal
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Autoimmune diseases are disorders in which the immune system fails to distinguish __________ from foreign ones.
A. self-immunoglobulins B. self-antibodies C. self-antigens D. self-interleukins E. self-complement proteins
Urine flow from the renal pelvis to the urinary bladder is produced by
A. peristalsis of the ureters. B. hydrostatic pressure from the small intestine. C. contraction of the detrusor muscle. D. suction from the urinary bladder. E. ciliary action in the renal pelvis.
What is the function of the iris?
A. Changes the shape of the lens B. Refracts light rays C. Regulates the size of the pupil D. Absorbs stray light rays
In a person with respiratory acidosis, HCO3- is actively secreted into the urine by the tubular cells.
Answer the following statement true (T) or false (F)