Molluscan kidney, Biology

Molluscan Kidney

In molluscs, the coelom is represented by the pericardial cavity and the cavities of the kidneys and gonads. The pericardial coelom opens into the renal cavity via the renopericardial duct. Thus the molluscan kidney is a modified coelomoduct of the metanephridial type opening into the pericardial cavity at one end and the ' mantle cavity at the other.

1355_Molluscan Kidney.png

Figure: Kidney and its relationship to the pericardium in the snail

In the molluscs, an initial fluid is formed in the kidney by ultrafiltration of the blood through the wall of the heart. Reabsorption of valuable materials hke glucose and secretion of unwanted compounds occur subsequently resulting in the formation of the final urine. There is some evidence that in the abalone, Haliotis, glucose re-absorption takes place primarily in the left kidney, while secretion of unwanted compounds occurs in the right kidney. Hydrostatic pressure of the blood provides the filtration pressure and application of back pressure stops urine production.

 

 

 

 

 

Posted Date: 1/16/2013 1:34:14 AM | Location : United States







Related Discussions:- Molluscan kidney, Assignment Help, Ask Question on Molluscan kidney, Get Answer, Expert's Help, Molluscan kidney Discussions

Write discussion on Molluscan kidney
Your posts are moderated
Related Questions
Different areas of brain - HUMA N BRAIN DIFFEREN T AREAS OF BRAIN Note : - In brain glutemic acid metabolins is common In latemaria brain's size

Q. Explain about Climate Regulation? By giving off moisture through their leaves and providing shade, plants help keep us and other animals cool. Forests are especially good cl

State three main ways in which the body uses food. The body uses food (i) for energy, (ii) for growth (making new cells), (iii) repairing or replacing tissues.

Define cause of vitamin a deficiency - Poverty and ignorance? Low purchasing power of the communities and their consequent inability to meet the nutrient requirements and tradi


Describe a health issue or disease and recommend an intervention (you may utilize the health issue . Justify the intervention level (primary, secondary and tertiary) and setting ch

What is Probing depth Probing depths can be influenced by the tissue type- shallow depths are associated with a keratinized collar, whereas deeper depths are associated with mo


PEROXISOMES AND GLYOXYSOMES Certain small ovoid  unit membrane bound  sac like  cytoplasmic  organelles, resembling  lysosomes in size  and appearance  were  isolated  from var

Photosynthesis Two main energy pathways are recognised in living systems. These are photosynthesis and cellular respiration. Both have their respective but different electron