Question

21) Which statement is true regarding the urinary system? (1 point)

A) The external urinary sphincter function is a structure newborns do not control

B) The external urinary sphincter has no function in the female body

C) The internal urinary sphincter is voluntary muscle

D) The internal urinary sphincter plays a major role in urinary function

E) The internal urinary sphincter is not fully developed until childhood

24) Diabetes Mellitus can lead to (2 point)

A) High levels of sodium in the blood

B) Elevated levels of potassium in the blood

C) Reduced levels of calcium in the urine

D) Increased potassium in the urine

E) Decreased sodium in the urine

25) Which of the following statements are true? (1 point)

A) The renal cortex is the most superficial portion of the kidney

B) The renal medulla contains the renal columns

C) The major calyx drains into the minor calyx

D) Both A and B are correct

E) Both A and C are correct

8) In response to increased levels of aldosterone, the kidneys produce (select all that apply) (2 points)

A) A larger volume of urine.

B) Blood with a higher concentration of sodium ions.

C) Urine with a higher concentration of potassium ions.

D) Blood with a lower concentration of sodium ions.

E) Urine with less glucose.

13) Consuming a meal high in salt could (select all that apply) (1 point)

A) Trigger the release of aldosterone

B) Increase ADH production

C) Decrease thirst

D) Cause an increase in renin

E) Cause a fight or flight response

10) When the level of ADH increases, (1 point)

A) Increases the permeability of the collecting ducts to water

B) Blood pressure will drop

C) Causes the kidneys to produce a larger volume of very dilute urine

D) The blood will thicken

E) Is secreted in response to low potassium ion in the blood

Answer 1

21. ANSWER: The external urinary sphincter functionis a structure newborns do not control.

Reason: External urinary sphincter is fully developed only after 3yrs of age.

24. ANSWER: A. High levels of sodium in blood.

Reason: Due to osmotic diuresis, sodium gets accumulated in the blood.

25.ANSWER: Renal cortex is the most superficial part of the kidney.

Reason: Renal cortex being the outer layer is the superficial part of the kidney.

26. ANSWER: Urine with higher concentration of potassium ions.

Reason: Aldosterone results in absorption of sodium and water from the renal tubules resulting in the excretion of more of potassium ions in the urine.

10.ANSWER: Increases the permeability of collecting duct to water.

Reason: ADH increases the absorption of water from the collecting ducts through aquaporins.