RAA system

Question 1

what is the RAA system?

Answer 1

system of hormones, proteins, enzymes and reactions that regulate your blood pressures and blood volume on a long term basis

Question 2

how does the RAA system regulate your blood pressure?

Answer 2

increasing sodium reabsorption, water reabsorption, and vascular tone

Question 3

what are three major substances of the RAA substances?

Answer 3

• Renin
• Angiotensin 2
• aldosterone

Question 4

how does thee RAA system work?

Answer 4

• when bp falls, renin is produced
• renin splits into angiotensinogen which splits into angiotensin 1
• angiotensin converting enzyme splits it into angiotensin 2
• angiotensin 2 increases bp by vasocontriction
• aldosterone causes kidneys to retain sodium and excrete potassium
• increase sodium causes water retention which increases bp and blood volume