10 Questions
What is the primary function of the renin-angiotensin-aldosterone system in blood pressure regulation?
To increase blood volume and pressure
What is the effect of angiotensin II on the adrenal cortex?
It stimulates the release of aldosterone
What is the role of the granular cells in the renin-angiotensin-aldosterone system?
They release renin
What is the effect of increased angiotensin II on the hypothalamus?
It stimulates the release of ADH and activates the thirst center
What is the normal net filtration pressure in the glomerulus?
15 mmHg
What is the effect of high sodium concentration in the filtrate on the afferent arteriole?
It dilates the afferent arteriole
What is the purpose of autoregulation mechanisms in the kidneys?
To maintain a constant GFR
What is the effect of sympathetic nervous system activation on the afferent arteriole?
It constricts the afferent arteriole
What is GFR?
The amount of blood filtered by the kidneys per minute
What is the normal blood pressure in the glomerulus?
140 mmHg
This quiz covers the transport mechanisms of various substances in renal tubules, including glucose, amino acids, calcium, and more. It also explains the importance of tubular secretion in disposing of undesirable substances and controlling blood pH.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
