In response to low blood pressure, the kidneys increase renin secretion, which activates the renin-angiotensin-aldosterone system to help raise blood pressure.

Increased blood osmolarity stimulates the secretion of ADH, which promotes water reabsorption in the kidneys.

The nephron is the functional unit of the kidney, responsible for filtering blood and forming urine.

The primary function of the kidneys is to filter waste products from the blood, which is essential for maintaining homeostasis.

The proximal convoluted tubule is the primary site for glucose reabsorption in the nephron, utilizing active transport mechanisms.

Aldosterone increases sodium reabsorption in the kidneys, which helps to regulate blood pressure and fluid balance.

The kidneys play a crucial role in regulating sodium levels in the body, which is vital for fluid balance and blood pressure.

Antidiuretic hormone (ADH) increases water reabsorption in the kidneys, helping to regulate body fluid balance.

Tubuloglomerular feedback is a mechanism of renal autoregulation that helps maintain a constant glomerular filtration rate despite changes in blood pressure.