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Which structure keeps semen from entering the urinary bladder during ejaculation.

Case Study: Kelechi is a 45-year-old male with a history of hypertension who presents to your clinic with swelling in his legs and ankles. Laboratory tests show that he has significant proteinuria. His medial team suspects that damage to the glomerulus may be contributing to his symptoms. A follow-up biopsy reveals that the structure of the podocytes in his kidneys is compromised. If the podocytes are not functioning properly, which process is also compromised?

Case Study: If your patient has surpassed the renal threshold for glucose, which of the following must also be true? Mark all that apply. 

Fenestrae are openings in the endothelial cells of the glomerular capillaries.

Match the appropriate volumes of lung function. 

Which of the following are functions of the kidneys? Mark all that apply. 

The 2nd heart sound occurs when the semilunar valves are shut. 

Which of the following is true about the filtration membrane? Mark all that apply.

How many lobes comprise the right lung? Type your answer using a number only. 

Cortical nephrons have loops that extend deep into the medulla.