Quick Answer: What Is The Function Of The Juxtaglomerular Apparatus Quizlet?

Which structure is most important for urine concentration quizlet?

(The loop of the nephron, especially as it passes through the medulla, is the place where urine can be most concentrated if the body conditions require water retention.).

What is the chief force pushing water and solutes?

Glomerular hydrostatic pressure (HPg), which is essentially glomerular blood pressure, is the chief force pushing water and solutes out of the blood and across the filtration membrane.

Which layer of support tissue holds the kidneys in the retroperitoneal position?

This means they are retroperitoneal. Each kidney is held in place by connective tissue, called renal fascia, and is surrounded by a thick layer of adipose tissue, called perirenal fat, which helps to protect it.

Where is the Juxtaglomerular apparatus located quizlet?

Where is the Juxtaglomerular Apparatus located? In the distal tubule, specifically the region that passes between the afferent & efferent arterioles. Tubuloglomerular feedback about the sodium & chloride composition in the distal tubule affects arteriolar tone.

What are the functions of the macula densa quizlet?

What is the function of the macula densa cells of the juxtaglomerular complex (JGC)? The macula densa cells monitor the NaCl content of the filtrate entering the distal convoluted tubule.

What are the three components of the Juxtaglomerular apparatus?

The three cellular components of the apparatus are the macula densa, extraglomerular mesangial cells, and juxtaglomerular cells (also known as granular cells)[WP].

What three hormones factors do the kidneys secrete into the blood?

The kidney secretes (1) renin, a key enzyme of the renin-angiotensin system (RAS) that leads to the production of a potent pressor hormone angiotensin, and produces the following hormones and humoral factors: (2) kallikreins, a group of serine pro- teases that act on blood proteins to produce a vasorelaxing peptide …

What role does the macula densa play in GFR?

Cells in the macula densa respond to changes in the sodium chloride levels in the distal tubule of the nephron via the tubuloglomerular feedback (TGF) loop. The macula densa’s detection of elevated sodium chloride, which leads to an increase in GFR, is based on the concept of purinergic signaling.

What is the function of the Juxtaglomerular apparatus?

The juxtaglomerular apparatus functions to maintain blood pressure and to act as a quality control mechanism to ensure proper glomerular flow rate and efficient sodium reabsorption. The urethra extends from the bladder to the surface of the body. It consists of an epithelium-lined lumen and a smooth muscle layer.

What does the macula densa secrete?

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 is important functionally about the specialized epithelium in the bladder quizlet?

WHAT IS IMPORTANT FUNCTIONALLY ABOUT THE SPECIALIZED EPITHELIUM (TRANSITIONAL EPITHELIUM) IN THE BLADDER? THEY HAVE ABILITY TO SLIDE OVER ONE ANOTHER, THUS DECREASING THE THICKNESS OF THE MUCOSAL LAYER AS THE BLADDER FILLS & STRETCHES TO ACCOMMODATE THE INCREASED URINE VOLUME.

What is the Juxtaglomerular complex quizlet?

juxtaglomerular complex….where most distal portion of ascending limb of nephron loop lies against afferent arteriole. macula densa. tall, closely packed cells; contain chemoreceptors that monitor NaCl content in DCT.

What do Juxtaglomerular cells secrete?

The juxtaglomerular cells secrete renin, and as specialised smooth muscle cells surrounding the afferent arteriole also have the capacity to affect the perfusion of the glomerulus.

Which structure is most important for urine concentration?

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 cells of the afferent Arteriole secrete renin quizlet?

A renal structure in which regions of the nephron tubule and afferent arteriole are in contact with each other. Cells in the afferent arteriole of the juxtaglomerular apparatus secrete the enzyme renin into the blood, which activates the renin-angiotensin system.