excretory system
by Jeff hirst
skyline
There are several other names used when referring to nephridia. Some of these include metanephridium, protonephridia, and metanephridia. It is basically an invertebrate organ that performs similar functions as the kidney.
In an earthworm, nephridia occur in all body segments except the first three segments. Integumentary nephridia are V-shaped and lack nephrostomes.
Nephridia remove metabolic wastes, such as nitrogenous compounds (e.g., ammonia), from the body by filtering them from the coelomic fluid and releasing them outside the body.
The water and nutrients are reabsorbed from the nephridia into the blood vessels surrounding the nephridia. This process helps to conserve essential substances and maintain the balance of fluids and solutes in the body.
NEPHRIDIA:- In earthworm excretion occurs through nephridium. The excretory system in earth worm is closely associated with its closed circulatory system. Each segment of earthworm consists of a pair of nephridia or in some species cluster of nephridium. NEPHRoSTOME:- The colemic fluid or body fluid enters the nepridium through a membrane which is cilliated called nephrdiostome. NEPHRIDIOPORE:- The body fluid after reabsorption from the nephridia opens into a large bladder which opens to exterior through nephridiopore. Ammonia and water are waste products excreted by nephridia while CO2 is excreted through general body surface.
There are several other names used when referring to nephridia. Some of these include metanephridium, protonephridia, and metanephridia. It is basically an invertebrate organ that performs similar functions as the kidney.
Kidney
In an earthworm, nephridia occur in all body segments except the first three segments. Integumentary nephridia are V-shaped and lack nephrostomes.
Nephridia remove metabolic wastes, such as nitrogenous compounds (e.g., ammonia), from the body by filtering them from the coelomic fluid and releasing them outside the body.
The water and nutrients are reabsorbed from the nephridia into the blood vessels surrounding the nephridia. This process helps to conserve essential substances and maintain the balance of fluids and solutes in the body.
An earthworm's excretory system contains pairs of integumentary, septal, and pharyngeal nephridia. Each nephridia is located in a different segment of the body.
Nephridia
An earthworm's excretory system contains pairs of integumentary, septal, and pharyngeal nephridia. Each nephridia is located in a different segment of the body.
if you mean nephridia (an extra 'i' second to end) they are specialised organs that function similar to kidneys in that they are used for osmoregulation and excretion. In annelids (which are segmented worms) there is one pair of nephridia per segment.
The excretory system of a worm is comprised of three pairs nephridia. Each type of nephridia, the integumentary, septal, and pharyngeal, is located in a different segment.
They remove metabolic wastes from an animal's body.
The function of an earthworm's nephridium is to excrete wastes from the earthworm's body.