The higher the concentration of a substance in the blood, the greater its transport maximum is.
Answer the following statement true (T) or false (F)
False
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Sperm cannot fertilize an oocyte until they
A) undergo capacitation. B) undergo meiosis. C) lose their flagellum. D) are in the vagina for 3 days. E) are activated by sustentacular cells of the vagina.
Which of the following statements concerning vitamin D is incorrect?
a. It can be synthesized by the skin on exposure to sunlight. b. It must be modified by alterations in the liver and kidneys before it is biologically active. c. It enhances the effect of calcitonin on bone. d. It increases Ca2+ absorption in the intestine. e. Its deficiency in children results in rickets.
Nerves that pass through the sympathetic chain without synapsing innervate which structure?
A. Sweat glands B. Lungs C. Heart D. Stomach E. Arrector muscles
The Frank-Starling law of the heart states that stroke volume is proportional to ________
A) the heart rate B) contractility C) the end-systolic volume D) the end-diastolic volume E) the afterload