Multiple Choice
Antidiuretic hormone (ADH) acts on the __________ to __________ water excretion.
26. Fluid and Electrolyte Balance, Acid Base Balance
Electrolyte Balance
Struggling with Anatomy & Physiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
When the concentration of Na+ in the ECF decreases, __________.
A
osmoreceptors are stimulated
B
more ADH is released
C
aldosterone levels increase
D
ANP levels increase
E
a person experiences increased thirst
Verified step by step guidance1
Understand the role of sodium (Na+) in the extracellular fluid (ECF). Sodium is a key electrolyte that helps regulate water balance, blood pressure, and nerve function.
Recognize that a decrease in Na+ concentration in the ECF can lead to a decrease in blood volume and blood pressure, as water follows sodium osmotically.
Identify the body's response to low Na+ levels. The body aims to conserve sodium and increase blood volume and pressure.
Recall the role of aldosterone, a hormone produced by the adrenal glands, which increases the reabsorption of sodium in the kidneys, thus increasing Na+ levels in the ECF.
Conclude that when Na+ concentration in the ECF decreases, aldosterone levels increase to promote sodium retention and restore balance.
Related Videos
Related Practice
Electrolyte Balance practice set
Problem sets built by lead tutorsExpert video explanations