In the male, urethra serves to:
1. transport urine from kidney to bladder
2. transport sperms to ejaculatory ducts
3. store urine and sperms
4. discharge semen and urine
The presence of which of the following in urine would be abnormal?
1. sodium | 2. glucose |
3. urea | 4. creatinine |
The major site for the reabsorption of bicarbonate ions in the nephron is the:
1. proximal convoluted tubule | 2. loop of Henle |
3. distal convoluted tubule | 4. Bowman’s capsule |
Urine from the major calyces in the kidney is collected by:
1. | minor calyces | 2. | renal pelvis |
3. | ureters | 4. | renal papillae |
The functional unit of the human kidney is the:
1. | glomerulus | 2. | Malpighian body |
3. | nephron | 4. | medullary pyramids |
The vascular endothelium of glomerular capillaries, basement membrane, and podocytes in the inner lining of Bowman’s capsule form:
1. filtration membrane | 2. juxtaglomerular apparatus |
3. Malpighian corpuscle | 4. nephron |
A series of straight capillaries in the medulla that lie parallel to the loop of Henle are called:
1. | arcuate arteries | 2. | efferent arterioles |
3. | afferent arterioles | 4. | vasa recta |
About what percent of the glomerular ultrafiltrate is reabsorbed by the tubules during urine formation?
1. 99% | 2. 70% |
3. 50% | 4. 20% |
10 to 15 distinct conical or triangular structures in the human kidney are seen in renal ______ and are known as renal ____________.
1. | pelvis; calyces | 2. | medulla; pyramids |
3. | cortex; columns of Bertini | 4. | cortex; lobes |
All of the following regarding juxtamedullary nephrons in human kidneys are correct except:
1. the entire nephron is located in the superficial cortex of the kidney
2. the renal corpuscle comprises a glomerulus and a glomerular capsule
3. blood arrives at the glomerular capillaries via an afferent arteriole
4. the proximal convoluted tubule leads into a long nephron loop