Quick Answer: What Are The Functions Of The Macula Densa Quizlet?

What is macula of eye?

The retina is the light-sensitive tissue at the back of the eye and the macula is the part of the retina responsible for sharp, straight-ahead vision.

Fluid buildup causes the macula to swell and thicken, which distorts vision..

What is the function of the Juxtaglomerular apparatus quizlet?

Macula Densa & Juxtaglomerular cells. What is the main function of the Juxtaglomerular apparatus? To secrete Erythropoitein and Renin.

What are Extraglomerular mesangial cells?

Extraglomerular mesangial cells (also known as Lacis cells, Polkissen cells, or Goormaghtigh cells) are light-staining pericytes in the kidney found outside the glomerulus, near the vascular pole.

Which structure is most important for urine concentration quizlet?

Which structure is most important for urine concentration? Capsular hydrostatic pressure is the chief force pushing water and solutes out of the blood and across the filtration membrane.

Which of the following describes the function of Juxtaglomerular complex?

Which of the following is the primary function of the juxtaglomerular complex? releases chemical signals that regulate the rate of filtrate formation; The macula densa cells and granular cells of the juxtaglomerular complex (JGC) release, respectively, vasoactive chemicals and renin.

What do macula densa cells detect?

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. The macula densa is a collection of specialized epithelial cells in the distal convoluted tubule that detect sodium concentration of the fluid in the tubule.

What is the function of Juxtaglomerular cells?

Urinary System: Juxtaglomerular complex The afferent arteriole in this region contains specialised secretory cells (smooth muscle cells) called juxtaglomerular cells, that secrete renin. These cells do two things: They monitor blood pressure, by measuring how much the arteriole wall is stretched.

What specific part of the nephron is the macula densa located?

Reabsorption of Na+ and Cl− ions in the macula densa The macula densa cells are a small subset of approximately 20 cells per nephron at the distal end of the cTAL of the loop of Henle.

What is the Juxtaglomerular complex quizlet?

What is the Juxtaglomerular Complex (JGC)? There is one per nephron, involves modified portions of the distal portion of ascending limb of nephron loop and afferent arteriole. It is important in regulation of rate of filtrate formation and blood pressure.

What is a Juxtaglomerular complex?

The juxtaglomerular apparatus (also known as the juxtaglomerular complex) is a structure in the kidney that regulates the function of each nephron, the functional units of the kidney. The juxtaglomerular apparatus is named because it is next to (juxta-) the glomerulus.

What happens during tubular reabsorption?

Tubular reabsorption is the process that moves solutes and water out of the filtrate and back into your bloodstream. This process is known as reabsorption, because this is the second time they have been absorbed; the first time being when they were absorbed into the bloodstream from the digestive tract after a meal.

What are the functions of the macula densa?

Macula densa cells in the distal nephron, according to the classic paradigm, are salt sensors that generate paracrine chemical signals in the juxtaglomerular apparatus to control vital kidney functions, including renal blood flow, glomerular filtration, and renin release.

What are the three parts of Juxtaglomerular complex?

The main components of the JGA are the macula densa of the thick ascending limb, the renin-producing granular cells of the afferent arteriole, and the extraglomerular mesangial cell (Goormaghtigh cell, lacis cell; Figure 47.3).

When the macula densa detects an increase in NaCl?

When the macula densa detects an increase in NaCl concentration in the renal filtrate, what happens to the glomerular filtration rate (GFR)? GFR decreases.

What is juxta glomerular apparatus?

The juxtaglomerular apparatus is the location of renin-secreting cells and the macula densa and lies at the junction between the loop of Henle and the distal nephron at which the tubule comes in close proximity to the afferent arteriole.16.