Describe the pathway by which substances from the blood enter the nephron.
What will be an ideal response?
Answer: Blood enters the kidney via the renal artery, which branches into many afferent arterioles, which supply the glomeruli. pressure pushes fluid between the podocytes that surround the capillaries within Bowman's capsule. The filtered fluid enters the nephron.
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Somatostatin
What will be an ideal response?
A patient is suffering from a condition requiring multiple blood transfusions. They have type A blood and their first transfusion was perfectly successful. However, their second transfusion of type A blood causes them to become very ill and observation of their blood reveals agglutination. What has happened to cause their second transfusion to fail?
A. They have developed a sensitivity to A antigens after being exposed to the first transfusion. B. The second transfusion must have had anti-A antibodies, which began attacking their blood. C. The blood used in the second transfusion must have come from a pregnant woman with Rh-negative blood. D. The blood used in the first transfusion contained Rh antigens, which caused the patient to produce anti-Rh antibodies and attack the blood from the second transfusion.
The beating of the cilia of the respiratory passages in the direction of the pharynx forms a(n)
A) debris filter. B) mucus escalator. C) respiratory rhythmicity center. D) smooth slick surface allowing particles to slide. E) increased surface area for gas exchange.
When proteins are digested, the following molecules can be absorbed: ________
A) amino acids, dipeptides, and tripeptides B) amino acids C) tripeptides D) dipeptides