Formed elements make up about 55% of the volume of the blood, and plasma makes up 45%.
Answer the following statement true (T) or false (F)
False
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Freshly deposited sperm are not immediately capable of penetrating an oocyte
Indicate whether the statement is true or false
Discuss the functions of the blood-brain barrier. What cellular characteristics contribute to its effectiveness?
What will be an ideal response?
Tubular reabsorption and tubular secretion differ in that
A. tubular secretion is a passive process; tubular reabsorption uses active transport. B. tubular reabsorption occurs in Bowman capsule; tubular secretion occurs in the peritubular capillary. C. tubular reabsorption increases urine volume; tubular secretion decreases urine volume. D. tubular secretion adds materials to the filtrate; tubular reabsorption removes materials from the filtrate. E. tubular secretion moves materials from the filtrate into the blood; tubular reabsorption moves materials from the blood into the filtrate.
Which area of the nephron completely lacks microvilli and is under hormonal control for the reabsorption of sodium?
A) papillary duct B) DCT C) nephron loop D) PCT E) None of the answers are correct.