Renin-Angiotensin-Aldosterone System (RAAS)

What is the role of the antidiuretic hormone during RAAS?* A. Causes the kidneys to keep water B. Leads to vasoconstriction of vessels C. Activates the release of angiotensin I D. Prevents the activation of the parasympathetic nervous system

A. Causes the kidneys to keep water

During the renin-angiotensin-aldosterone system activation, what gland releases antidiuretic hormone (ADH)?* A. Pituitary B. Thyroid C. Hypothalamus D. Adrenal cortex

A. Pituitary

What happens in the 6th response in the RAAS?

ACE (angiotensin-converting enzyme) *found on the surface in the lungs & Kidneys endothelium*

What happens in the 4th response in the RAAS?

Activates the liver called: Angiotensinogen

What is the role of aldosterone?* A. It causes constriction of vessels. B. It causes the kidneys to keep sodium and water. C. It causes the kidneys to keep potassium and water. D. It causes the kidneys to only keep water.

B. It causes the kidneys to keep sodium and water.

Select below the CORRECT sequence in how the renin-angiotensin-aldosterone system works:* A. Angiotensin I -> Angiotensin II -> ACE -> Renin -> Angiotensinogen B. Renin-> Angiotensinogen -> Angiotensin I -> ACE -> Angiotensin II C. Renin -> Angiotensin I -> Angiotensinogen -> ACE -> Angiotensin II D. Angiotensinogen -> Renin -> ACE -> Angiotensin I -> Angiotensin II

B. Renin-> Angiotensinogen -> Angiotensin I -> ACE -> Angiotensin II

What happens in the 1st response in the RAAS?

Blood pressure drops

During RAAS activation, what gland releases aldosterone?* A. Hypothalamus B. Thymus C. Adrenal cortex D. Pituitary

C. Adrenal cortex

What component of the RAAS (renin-angiotensin-aldosterone system) is created and found in the liver that is activated by renin?* A. Aldosterone B. Angiotensin I C. Angiotensinogen D. Angiotensin II

C. Angiotensinogen

What is the goal of the renin-angiotensin-aldosterone system (RAAS)? A. Decrease blood pressure B. Increase the heart rate C. Increase the blood pressure D. Decrease the heart rate

C. Increase the blood pressure

Select all the roles of angiotensin II when it is activated in the renin-angiotensin-aldosterone system:* A. Activates bradykinin B. Triggers the release of aldosterone C. Increases the blood volume D. Causes vasodilation E. Increases systemic vascular resistance F. Causes the release of ADH (antidiuretic hormone)

C. Increases the blood volume F. Causes the release of ADH (antidiuretic hormone)

What happens in the 7th response in the RAAS?

Converts Angiotensin 1 to Angiotensin 2 by: *constricts vessels & increases blood volume* Which is: Vasoconstriction Blood volume is by the kidney's

What happens in the 5th response in the RAAS?

Creates Angiotensin 1 We want angiotensin 1 to turn into that active vaso-constrictictor......in order to do that we have to have.....

What is the role of ACE in the renin-angiotensin-aldosterone system?* A. It activates angiotensinogen which turns into angiotensin I. B. It causes the kidney cells to release renin. C. It causes angiotensin II to trigger the adrenal glands to produce aldosterone. D. It converts angiotensin I into angiotensin II.

D. It converts angiotensin I into angiotensin II.

When the RAAS is activated due to a change in body hemodynamics, the __________________ stimulates the ___________________ cells in the kidneys to release _______________. A. parasympathetic nervous system; mesangial; aldosterone B. sympathetic nervous system; podocytes; renin C. parasympathetic nervous system; juxtaglomerular; aldosterone D. sympathetic nervous system; juxtaglomerular; renin

D. sympathetic nervous system; juxtaglomerular; renin

What happens in the 3rd response in the RAAS?

Kidney's Juxta Glomerular (JG) Cell These cells are stimulated, which releases RENIN

What is your body's response after Angiotensin 2?

Kidney's: Keep Na+ & H20 reabsorption which increases blood volume Adrenal Cortex: Aldosterone: Na+ & H20 Lower K+ low Pituitary Gland: ADH: Antidiuretic Hormone (vasopressin): Keep H20 All together: It's going to increase the blood pressure

What happens in the 2nd response in the RAAS?

Sympathetic Nervous system (fight-or-flight-response) These nerves stimulate......