What is the main function of the metanephridium?
Protonephridia and metanephridia are two types of nephridia that mainly occur in invertebrates. Generally, they are functionally analogous to the vertebrate kidney and are responsible for the removal of metabolic waste from the body.
What is in the excretory system?
The excretory system in humans consists mainly of the kidneys and bladder. The kidneys filter urea and other waste products from the blood, which are then added to the urine within the bladder. Other organs, such as the liver, process toxins but put their wastes back into the blood.
What is metanephridium mean?
Definition of metanephridium : a nephridium that originates in a ciliated coelomic funnel — compare protonephridium.
What is protonephridia and metanephridia?
Definition. Protonephridia refer to the tubular, excretory structures in certain invertebrates, usually ending internally in flame cells and having an external pore, while metanephridia refer to primitive excretory organs present in many invertebrates, originating in a ciliated coelomic funnel.
What is Nephromixia?
Definition of nephromixium : a nephridium that functions as an excretory organ and a genital duct.
Where is nephridium found?
They are found in the arthropods: coxal glands of arachnids, antennal (or green) glands and maxillary glands of crustaceans, etc. The saccate metanephridia filter the fluid of the hemocoel, as opposed to the metanephridia which filter coelomic fluid.
What is the main function of the excretory system?
The function of the excretory system to remove wastes from the body. These wastes include water, CO2, nitrogen, salts, and heat. Metabolism: The process of the body coverting food into energy. As a result of metabolism, there are waste products.
What is the main aim of excretion?
THE MAIN AIM OF EXCRETION IS TO THOW OUT THE WASTE FOOD AFTER DIGESTION.
What is earthworm Metanephridia?
A metanephridium (meta = “after”) is a type of excretory gland found in many types of invertebrates such as annelids, arthropods and mollusca. (In mollusca, it is known as the Bojanus organ.)
What is difference between protonephridia and Nephridia?
Protonephridia are composed of many flame cells that are ciliated cells used in excretion. Metanephridia are composed of cells that have an internal opening known as nephrostome and an external opening known as nephridiopore. Nephridia are important structures in excretion.
What is the difference between nephridia and metanephridia?
As nouns the difference between metanephridium and nephridium. is that metanephridium is (anatomy) a vasiform excretory gland observed in invertebrates, such as annelids, arthropods and molluscs while nephridium is (biology) a tubular excretory organ in some invertebrates.
What is Coelomoduct?
Definition of coelomoduct : an excretory and genital duct that is typical of certain invertebrates (as annelid worms) and has a wide and usually ciliated lumen opening into the coelom by a broad funnel and terminating externally by a small pore in the body wall.
What is metanephridia?
What is metanephridia? Metanephridium is a type of excretory gland found in invertebrates such as annelids, arthropod and mollusca. A metanephridium typically consists of a ciliated funnel opening into the body cavity connected to a duct which may be variously glandularised, folded or expanded and which typically opens to the organisms exterior.
What is the structure of metanephridium?
A metanephridium typically consists of a ciliated funnel opening into the body cavity, or coelom connected to a duct which may be variously glandularized, folded or expanded (vesiculate) and which typically opens to the organism ‘s exterior.
What is metanephridium in annelids?
Metanephridium is a type of excretory gland found in invertebrates such as annelids, arthropod and mollusca. A metanephridium typically consists of a ciliated funnel opening into the body cavity connected to a duct which may be variously glandularised, folded or expanded and which typically opens to the organisms exterior.
What is the nephridium?
Excretory organ similar to vertebrate kidney. The nephridium (plural nephridia) is an invertebrate organ, found in pairs and performing a function similar to the vertebrate kidney. Nephridia remove metabolic wastes from an animal’s body. Nephridia come in two basic categories: metanephridia and protonephridia .