Question

question 133
0.25 pts
approximately how much blood flows through the kidneys per minute?
500 ml
750 ml
1200 ml
3500 ml
question 134
0.25 pts
a portion of the nephron that can lie within the medulla is the:
proximal tubule.
glomerular capsule.
distal tubule.
nephron loop.
question 135
0.25 pts
there are how many openings in the urinary bladder?
one
two
three
four

Explanation:

Question 133

To determine the blood flow through the kidneys per minute, we rely on anatomical and physiological knowledge. The kidneys receive about 20 - 25% of the cardiac output. The average cardiac output is around 5 - 6 liters per minute, so 20 - 25% of that is approximately 1200 ml (1.2 liters) per minute.

Nephrons are the functional units of the kidney. The nephron loop (loop of Henle) has a portion that extends into the medulla of the kidney. The proximal tubule, glomerular capsule, and distal tubule are mainly in the cortex (or at the cortex - medulla junction for some distal tubule parts, but the nephron loop is the main structure that dips into the medulla).

The urinary bladder has three openings: two from the ureters (to receive urine from the kidneys) and one to the urethra (to expel urine from the body).

Answer:

C. 1200 ml

Question 134