An adaptation of the epithelial cells of the proximal convoluted tubule for reabsorption is
A. secreting enzymes that activate absorption of substances.
B. microscopic projections called microvilli.
C. rugae folds that increase surface area.
D. thin walls.
Answer: B
You might also like to view...
Where is the greatest concentration of cones located?
A. In the optic disc B. In the ora serrata C. In the fovea centralis D. In the posterior retina E. In the optic nerve
You are "shadowing" an endocrinologist who is examining a patient complaining of weakness, weight loss, and heat intolerance
The doctor points out the patient's obvious exophthalmos and asks for your diagnosis. What would you speculate is the patient's problem? A. Hyposecretion of parathyroid hormone B. Hypersecretion of parathyroid hormone C. Hyposecretion of thyroid hormone D. Hypersecretion of thyroid hormone E. Hyposecretion of calcitonin
The corticospinal system controls fine, discrete, voluntary body movements
Indicate whether the statement is true or false
Organs that recondition the blood
a. receive disproportionately large percentages of the cardiac output b. can withstand temporary reductions in blood flow much better than organs that do not recondition the blood c. must receive a constant blood supply in order to maintain homeostasis d. have characteristics a and b e. have characteristics b and c