Responsible for long term arterial pressure regulationQuestion 9Answera.Renin-Angiotensin-Aldosterone-System b.ANSc.Decreased size of myocardiumd.Pressure natriuresis and diuresise.Stress relaxation of vasculature
Question
Responsible for long term arterial pressure regulationQuestion 9Answera.Renin-Angiotensin-Aldosterone-System b.ANSc.Decreased size of myocardiumd.Pressure natriuresis and diuresise.Stress relaxation of vasculature
Solution
The Renin-Angiotensin-Aldosterone System (RAAS) is primarily responsible for long-term arterial pressure regulation. Here's a step-by-step explanation:
-
The process begins when the kidneys release an enzyme called renin into the bloodstream. This happens when the body recognizes low blood volume, low sodium levels, or low blood pressure.
-
Renin then acts on a protein called angiotensinogen, which is produced by the liver and released into the blood. Renin cleaves angiotensinogen to produce angiotensin I.
-
Angiotensin I is then converted into angiotensin II by an enzyme called angiotensin-converting enzyme (ACE), which is found in the lungs.
-
Angiotensin II is a potent vasoconstrictor, meaning it narrows the blood vessels. This increases blood pressure. Angiotensin II also stimulates the release of aldosterone from the adrenal glands.
-
Aldosterone acts on the kidneys, causing them to reabsorb more sodium and water from the urine. This increases blood volume and, consequently, blood pressure.
So, the correct answer to your question is a. Renin-Angiotensin-Aldosterone-System.
Similar Questions
A decrease in arterial blood pressure stimulates the kidneys to produce:Question 43Select one:a.ADHb.angiotensin IIc.aldosteroned.angiotensin Ie.renin
How does angiotensin II cause an increase in blood pressure?Multiple ChoiceBy inhibiting the release of aldosteroneBy stimulating the release of reninBy increasing peripheral resistanceBy promoting the excretion of sodium
The kidneys play an important role regulating blood pressure via the renin angiotensin aldosterone system. Briefly, explain the purpose of this system (2 marks) and the process by which this pathway ultimately produces aldosterone
Hypotension triggers what three important processes within the renin-angiotensin-aldosterone system
The normal human physiological response to a DECREASE in blood pressure and volumeincludes which of the following?A. A decrease in arteriole pressure in the juxtagolmerular apparatus results in a decrease in theenzyme rennin.B. An increase in angiotensin II that constricts arterioles and decreases blood flow to the capillaries.C. Aldosterone is released from the kidneys and increases distal tubule reabsorption of sodium.D. Antidiuretic hormone is decreased with the decrease in the blood volume.E. An increase in atrial natriuretic factor from the walls of the atria increases the release of theenzyme rennin
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.