Question

angiotensin ii
aldosterone
natriuretic peptides
antidiuretic hormone
increases blood pressure by promoting water retention; acts as a vasoconstrictor at extremely high concentrations
potent vasoconstrictor that raises the blood pressure
promotes na⁺ excretion, which reduces blood volume and lowers blood pressure
promotes na⁺ retention, which

Explanation:

To solve this, we match each hormone/peptide with its function:

1. Angiotensin II: It is a potent vasoconstrictor, so its function is "Potent vasoconstrictor that raises the blood pressure".
2. Aldosterone: It promotes $Na^+$ retention (which increases blood volume and pressure), so its function is "Promotes $Na^+$ retention, which increases blood volume and raises blood pressure" (implied by its role in sodium reabsorption).
3. Natriuretic peptides: They promote $Na^+$ excretion (reducing blood volume/pressure), so their function is "Promotes $Na^+$ excretion, which reduces blood volume and lowers blood pressure".
4. Antidiuretic hormone (ADH): It increases blood pressure via water retention and vasoconstriction at high levels, so its function is "Increases blood pressure by promoting water retention; acts as a vasoconstrictor at extremely high concentrations".

Answer:

• Angiotensin II: Potent vasoconstrictor that raises the blood pressure
• Aldosterone: Promotes $Na^+$ retention, which increases blood volume and raises blood pressure
• Natriuretic peptides: Promotes $Na^+$ excretion, which reduces blood volume and lowers blood pressure
• Antidiuretic hormone: Increases blood pressure by promoting water retention; acts as a vasoconstrictor at extremely high concentrations