Question 1

Into what structure does the distal convoluted tubule empty?

Accepted Answer

The distal convoluted tubule empties into the collecting duct, which then transports urine to the renal pelvis and subsequently to the ureter.

Question 2

The renal vein eventually joins what structure in the abdominal cavity?

Accepted Answer

The renal vein drains the kidney and eventually joins the inferior vena cava, which is the large vein that carries deoxygenated blood from the lower and middle body into the heart.

Question 3

What is the funnel shaped structure formed within the kidney from the expansion of the ureter?

Accepted Answer

The renal pelvis is the funnel-shaped structure within the kidney that is formed from the expansion of the upper end of the ureter. It collects urine produced in the kidney before it flows into the ureter.

Question 4

Into what vessels does the renal artery divide?

Accepted Answer

The answer of Into what vessels does the renal artery...

Question 5

What is the approximate number of nephrons in an adult kidney?

Accepted Answer

An adult kidney typically contains about 1 million nephrons, which are the functional units responsible for filtering blood and producing urine.

Question 6

What is the first subdivision of the renal pelvis called?

Accepted Answer

The answer of What is the first subdivision of the...

Question 7

Into which vessels do the efferent arterioles branch?

Accepted Answer

Efferent arterioles branch into peritubular capillaries, which surround the nephron in the cortex of the kidney, facilitating exchange of substances between blood and the nephron.

Question 8

Which structures compose the renal corpuscle?

Accepted Answer

The renal corpuscle is composed of the glomerulus and Bowman's capsule, which are involved in the filtration of blood to form urine.

Question 9

What is the average length and width of kidney in an adult?

Accepted Answer

The average kidney in an adult is about 12 cm (about 5 inches) long and about 6 cm (about 2.5 inches) wide. This size allows the kidneys to efficiently filter blood and produce urine.

Question 10

In which portion of the kidney are the proximal convoluted tubules located?

Accepted Answer

The proximal convoluted tubules are located in the cortex of the kidney. This is where most of the reabsorption of water, ions, and nutrients occurs.

Question 11

Which of the following are components of the nephron? Glomerulus
Papillary ducts
Loop of Henle
Distal tubule

Accepted Answer

The nephron, the functional unit of the kidney, consists of the glomerulus, Loop of Henle, and distal tubule. Papillary ducts are part of the collecting duct system, not the nephron itself.

Question 12

What structure is formed from the interlobular veins?

Accepted Answer

The arcuate vein is formed from the interlobular veins in the kidney. These veins are part of the venous drainage system of the kidney, collecting blood from the capillary networks around the nephrons and eventually contributing to the formation of the renal vein.

Question 13

Into what vessels do the interlobar arteries divide at the base of the renal pyramids?

Accepted Answer

Interlobar arteries divide into arcuate arteries at the base of the renal pyramids. These arcuate arteries run along the boundary between the cortex and medulla of the kidney.

Question 14

What is the term for the outer one-third of the kidney?

Accepted Answer

The cortex is the outer portion of the kidney where many of the organ's functions such as filtration and blood supply regulation occur.

Question 15

What is the term for the middle two-thirds of the kidney?

Accepted Answer

The medulla is the middle two-thirds of the kidney.

Question 16

What are the functional units of the kidneys called?

Accepted Answer

The nephron is the functional unit of the kidney, responsible for filtering blood and forming urine.

Question 17

Where do the renal arteries and renal veins enter and exit through the kidneys?

Accepted Answer

The renal arteries and renal veins enter and exit the kidneys through the hilum, which is a notch or slit in the center of the kidney's concave surface where blood vessels, nerves, and the ureter pass.

Question 18

Where is urine stored until it is discharged from the body?

Accepted Answer

The bladder is the organ where urine is stored until it is discharged from the body.

Question 19

From which structure does the descending limb of the loop of Henle originate?

Accepted Answer

The descending limb of the loop of Henle originates from the proximal convoluted tubule, which is part of the nephron in the kidney where initial filtration of blood occurs.

Question 20

Into what vessels do the interlobular arteries branch?

Accepted Answer

Interlobular arteries branch into afferent arterioles, which then supply blood to the glomeruli within the kidney.

Quiz 16: Renal Failure and Its Effects on the Cardiopulmonary System