________ are the specialized sites that each cardiac muscle cell is in contact with

A) Intercalane discs B) Cardium discs C) Vericalane discs D) None of the above

D

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Which organ is the principal organ of the renal system?

A) Urethra B) Kidney C) Bladder D) Ureter

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Which of the following is TRUE regarding the elderly?

A) A decrease in estrogen leads to increased cardiovascular disease in postmenopausal women. B) Cardiac output remains constant, but hypercholesterolemia and hypertension increase. C) There is a marked increase in obesity which is associated with the onset of type 1 diabetes. D) Osteoporosis can occur in both genders, but is especially common in men.

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