What happens in the distal convoluted tubule of the kidney?
A distal convoluted tubule connects to the collecting duct system that fine-tunes salt and water reabsorption and plays a major role in acid–base balance. The initial segment of the collecting duct, the cortical collecting duct, takes off from the distal convoluted tubule in the cortex.
What does the afferent arteriole in the kidney do?
The afferent arteriole is an arteriole that feeds blood into the glomerulus. The renal arterioles play a central role in determining glomerular hydraulic pressure, which facilitates glomerular filtration.
What is the correct order of blood flow through the kidneys?
What is the correct order of blood flow through the kidney? Blood enters the kidney through the renal artery and then enters the glomerulus via the afferent arteriole. Filtrate containing waste remains behind for excretion. Filtered blood exits the kidney through the renal vein, returning to the heart.
Which of the following is the correct sequence of blood flow through the kidneys on its route to the glomeruli of the nephrons?
Which of the following represent the correct sequence of blood flow through the nephron? Blood enters the kidney through the renal artery – afferent arteriole – glomerulus – efferent arteriole – peritubular capillaries – renal vein – exits the kidney.
What is the primary function of the distal convoluted tubule DCT?
The distal convoluted tubule (DCT) and collecting duct (CD) are the final two segments of the kidney nephron. They have an important role in the absorption of many ions, and in water reabsorption.
What is the function of the distal convoluted tubule quizlet?
The distal convoluted tubule (DCT) is a portion of kidney nephron between the loop of Henle and the collecting duct system. It is partly responsible for the regulation of potassium, sodium, calcium, and pH. It is the primary site for the kidneys’ hormone based regulation of calcium (Ca).
What is the function of the afferent arteriole quizlet?
specialized structure formed by the distal convoluted tubule and the glomerular afferent arteriole. It is located near the vascular pole of the glomerulus and its main function is to regulate blood pressure and the filtration rate of the glomerulus.
Which of the following is the correct order of blood flow efferent arterioles afferent arterioles peritubular capillaries?
The correct answer is (b) Afferent arterioles, glomerulus, efferent arteriole, peritubular capillaries.
Which of the following is composed of distal convoluted tubule cells that contact the afferent arteriole?
The juxtaglomerular apparatus is a specialized structure formed by the distal convoluted tubule and the glomerular afferent arteriole. It is located near the vascular pole of the glomerulus.
Which arteriole brings blood into the glomerulus?
afferent arteriole
Each nephron is served with blood by the afferent arteriole. This vessel brings blood into a capillary tuft called the glomerulus. Blood leaving the glomerulus flows into the efferent arteriole.
Where is the distal convoluted tubule located in the kidney?
Renal Control of Blood Pressure. In the distal convoluted tubule is located the macula densa: it has longer cells and cytoplasmic granules. Close to it there are segments of afferent and efferent arterioles that have a greater amount of cytoplasmic granules.
Where does the distal convoluted tubule meet the JGA?
At the juncture where the afferent and efferent arterioles enter and leave Bowman’s capsule, the initial part of the distal convoluted tubule comes into direct contact with the arterioles. The wall of the distal convoluted tubule at that point forms a part of the JGA known as the macula densa.
How does aldosterone affect the distal convoluted tubule?
Distal Convoluted Tubule: In the distal convoluted tubule, the urine solute and water concentration is further adjusted under the influence of aldosterone made in the adrenal zona glomerulosa. Aldosterone causes the distal tubules to pump out sodium, and the sodium brings free water, to increase blood volume.
What kind of crystals are in distal convoluted tubules?
Distal convoluted tubules contained large golden-brown birefringent crystals (15 to 80μm in diameter) with centrally radiating striations, sometimes in concentric rings, and smaller amorphous crystals (Cianciolo et al., 2008; Orson W. Moe, Donald W. Seldin, in Genetic Diseases of the Kidney, 2009