What is the function of the distal convoluted tubule in the kidney?

The distal convoluted tubule (DCT) is a short nephron segment, interposed between the macula densa and collecting duct. Even though it is short, it plays a key role in regulating extracellular fluid volume and electrolyte homeostasis.

What is between the glomerulus and the proximal convoluted tubule?

The functional unit of the kidney is the nephron, which consists of a glomerulus from which a proximal convoluted tubule leads to a thin loop of Henle and then to a distal convoluted tubule. Within the glomerulus are many capillary loops supported by mesangium.

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.

Is the afferent arteriole part of the kidney?

The afferent arterioles branch from the renal artery, which supplies blood to the kidneys. The afferent arterioles later diverge into the capillaries of the glomerulus….

Where is the distal convoluted tubule located in the kidney?

The distal convoluted tubule is the nephron segment that lies immediately downstream of the macula densa. Although short in length, the distal convoluted tubule plays a critical role in sodium, potassium, and divalent cation homeostasis.

What are two functions of the distal convoluted tubule?

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 primary function of the distal convoluted tubule and collecting duct?

What does the distal convoluted tubule secrete?

It regulates pH by absorbing bicarbonate and secreting protons (H+) into the filtrate, or by absorbing protons and secreting bicarbonate into the filtrate. Sodium and potassium levels are controlled by secreting K+ and absorbing Na+. Sodium absorption by the distal tubule is mediated by the hormone aldosterone.

What will happen if one kidney is removed from the body of a human being?

There may also be a chance of having high blood pressure later in life. However, the loss in kidney function is usually very mild, and life span is normal. Most people with one kidney live healthy, normal lives with few problems. In other words, one healthy kidney can work as well as two.

Where does blood leaving the afferent arteriole go to next?

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. Usually an arteriole flows into a venule.

What is found in the distal convoluted tubule?

Where does the distal convoluted tubule enter 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 (DCT) comes into direct contact with the arterioles. The wall of the DCT at that point forms a part of the JGA known as the macula densa.

Which is part of the renal tubule is impermeable to water?

A. cortical nephrons lie almost entirely outside the renal medulla. B. cortical nephrons have an associated vasa recta. C. cortical nephrons have a longer tubule. D. there are fewer cortical nephrons. Which part of the renal tubule is impermeable to water?

What are the four sections of the kidney tubule?

Four sections of the vasculature of the kidney tubule are listed below. Which one lists them in correct order of blood fl ow from left to right? A. efferent arteriole, glomerulus, afferent arteriole, peritubular capillaries. B. afferent arteriole, glomerulus, efferent arteriole, peritubular capillaries.

Where are the peritubular capillaries located in the kidney?

Peritubular capillaries – arises from the efferent arteriole of the glomerulus and clings closely to the entire length of the renal tubule so reabsorbtion and secretion can occur