Juxtaglomerular Apparatus
Trending Questions
Q. Macula densa, granular cells and extra glomerular mesangial cells constitute the .
- JFA
- AGA
- JGA
- JAG
Q. Explain the autoregulatory mechanism of GFR.
Q. Which of the following is not true about Juxtaglomerular apparatus ?
- Lies at the junction of distal tubule and against the afferent (efferent) arteriole
- Arteriole walls have juxtaglomerular cells, enlarged smooth muscle cells, Have secretory granules containing renin, Act as mechanoreceptors
- Macula densa function as chemoreceptors (sense concentrations of (Na+, K+andCl−) and on sensing higher levels of these ions, release prostaglandins which suppress the granular cells from releasing renin.
- Mesangial cells, Have phagocytic and contractile properties, Influence capillary filtration
Q. Fall in glomerular filtration rate stimulates the
- release of renin
- secretion of H+
- secretion of K+
- secretion of ammonia
Q. Name the cells that line the spongocoel in Sycon.
Q. Juxta glomerular apparatus is formed by cellular modifications in
- distal convoluted tubule and afferent arterioles
- distal convoluted tubule and efferent arterioles
- proximal convoluted tubule and afferent arterioles
- proximal convoluted tubule and efferent arterioles
Q. Which of the following cells does not constitute the juxtaglomerular apparatus?
- Macula densa cells, which are present along the distal convoluted tubule.
- Juxtaglomerular cells, which are present in the wall of the afferent arteriole.
- Extraglomerularmesangial cells, which nestle in between the afferent and efferent arterioles.
- Podocytes, which are attached to the basement membrane
Q. Podocytes which are attached to the basement membrane is a part of the juxta glomerular apparatus.
- False
- True
Q. What would happen when acidic chyme enters the duodenum?
- The duodenum responds by releasing intrinsic factor.
- The duodenum responds by releasing HCl.
- Lipids stimulates the release of bile from the gall bladder
- Pancreas responds by releasing bicarbonate ions
Q.
Glomerular filtration is possible because-
Afferent glomerular capillary is wider than efferent glomerular capillary
Afferent glomerular capillary is narrower than efferent glomerular capillary
Afferent glomerular arteriole is wider than efferent glomerular arteriole
Afferent glomerular arteriole is narrower than efferent glomerular arteriole
Q. mention the funtion of ureters in frog