Sodium and Chloride, ADH, Renin, Aldosterone, Natiuretic peptides

Question 1

What is the primary ECF cation?

Answer 1

Sodium

Question 2

What role does sodium have?

Answer 2

Regulates osmotic forces and provides neuromuscular irritability, acid-base balance, and cellular retractions

Question 3

What is the primary ECF anion?

Answer 3

Chloride

Question 4

What role does chloride play in the body?

Answer 4

Provides electroneutrality

Question 5

What is ADH?

Answer 5

Antidiuretic hormone (Vasopressing)

Question 6

What does ADH do?

Answer 6

Tells the kidney to hold on the water

Thinks Anti Diurese - signal for don’t pee anymore

Question 7

What happens if ADH is missing?

Answer 7

Will develop diabetes insipidus; excessive thirst develops and electrolye imbalances bc the body can’t hold onto water.

Question 8

What happens if you lose too much water in the body. How does the body try to compensate?

Answer 8

The renin- angiotensin-aldosterone system

Question 9

How does the Renin-Angiotensin-Aldosterone System work?

Answer 9

Renin> Angiotensis> Angiotensin 1>Angiotensin 2>Aldosterone

When the body needs to hold onto water; Renin is released from kidneys, Angiotensin released from the liver. Both come together to become Angiotensin 1
Goes to the lungs to become Angiotensin 2 which is a potent vasoconstrictor. If low sodium levels occur Angio 2 will release Aldosterone.

Question 10

What is aldosterone?

Answer 10

Steroid hormone (mineralcorticoid) provides hormonal regulation of sodium balance.

Increases reabsorption of ions and water in the kidney.

Causes the conservation of sodium, secretion of potassium, increase in water retention, and increase in blood pressure and blood volume.

Question 11

What are Naturietic Peptides?

Answer 11

Released when there is an increase in atrial pressure (stretch) caused by increased volumes (CHF)

Increase sodium and water excretion by the kidneys
Lowers blood volume and pressure.