Table of Contents
Is nephridia an excretory organ?
Annelids have nephridia as an excretory organ. Thus, the correct answer here is (D) Annelids. In earthworm, the nephridia are generally grouped in pairs throughout the segment of the worm’s body. Nephridia removes metabolic wastes from an animal’s body.
Where is nephridia found?
Hint: Nephridia are organs found in earthworms in pairs and perform the same functions as vertebrate kidneys. Nephridia are basically of two types that are Metanephridia and Protonephridia.
Is nephridia associated with digestion?
Types of Nephridia: Pharyngeal Nephridia Researchers have found that in some species, these nephridia contain digestive enzymes and potentially function in a similar fashion to salivary glands.
What is adult Nephridial system?
The nephridium (plural nephridia) is an invertebrate organ, found in pairs and performing a function similar to the vertebrate kidney (which originated from the chordate nephridia). Nephridia remove metabolic wastes from an animal’s body. Nephridia come in two basic categories: metanephridia and protonephridia.
Does prawn have green glands?
The main excretory organs of prawn are paired green glands. They are located within the second antennae which are the second pair of appendages, attached to the anterior part of the body. Each green gland consists of on endsac, labyrinth and a bladder.
What is the function of pharyngeal nephridia?
Pharyngeal nephridia play a role in the conservation of water in the earthworm.
What is the excretory system of annelids?
The excretory system of Annelida consists of coiled tubules, the metanephridia/Nephridia. It takes in body fluid from the coelom and an exit pore in the body wall called nephridiopore, releases waste from the worm. Nephridia thus maintains the water balance of the body i.e. osmoregulation.
What is the excretory system of arthropods?
The major organ of excretion in arthropods is “Malpighian tubule”.
What is Protonephridia and metanephridia?
Protonephridia are composed of ciliated or flagellated flame cells that aid in the release of waste fluid via the nephridiopore. Metanephridia are composed of funnel-like structures known as nephrostome with an interior opening that collects the waste fluid from the body cavity.
What is the excretory system in prawns?
Which is excretory system of nephridia is called?
Since the integumentary nephridia discharge the excretory wastes directly outside, hence, they are called exonephric nephridia. 3. Pharyngeal Nephridia:
How is the nephridium similar to a vertebrate kidney?
The nephridium (plural nephridia) is an invertebrate organ which occurs in pairs and performs a function similar to the vertebrate kidney. A Nephridia is an excretion of Annelids like earthworms. Nephridia remove metabolic wastes from an animal’s body.
What is the function of the nephridium in animals?
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.
What is the structure of the nephridia of Pheretima?
Structure: The septal nephridia may be considered typical of all the nephridia of Pheretima. Each septal nephridium (Fig. 66.22) consists of nephrostome, neck, body of nephridium and the terminal duct.