Which of the lymphatic trunks drain into the cisterna chyli?
A. Intestinal trunks
B. Lumbar trunks
C. Intestinal trunks and lumbar trunks
D. Subclavian trunks and jugular trunks
E. Bronchomediastinal trunks and intestinal trunks
C
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Thyroid hormones
a. regulate basal metabolic rate b. are released from the thyroid gland immediately after synthesis c. contain chromium and zinc as structural cofactors d. are tropic e. are none of the above
A red blood cell has a diameter of about 8?m. Use that information to estimate the diameter of the oocyte in micrometers (?m) and millimeters (mm). (1 mm = 1000 ?m)
A) An oocyte has a diameter about 2 times greater than the red blood cell. B) An oocyte has a diameter about 4 times greater than the red blood cell. C) An oocyte has a diameter about 7 times greater than the red blood cell. D) An oocyte has a diameter about 11 times greater than the red blood cell. E) An oocyte has a diameter about 15 times greater than the red blood cell.
The most abundant cation within cells is
A. chloride. B. calcium. C. sodium. D. potassium. E. magnesium.
Which one of the following structures is NOT part of the respiratory zone?
A) respiratory bronchioles B) alveolar ducts C) alveolar sacs D) alveoli E) primary bronchus