The flame-cell system in planarians consist of specialized cells called flame cells that are part of the excretory system. Flame cells have distinctive cilia that beat rapidly, creating a flickering appearance like a flame. These cells help regulate the osmotic balance and remove waste from the body by actively pumping fluids through the excretory system.
Specialized cells in the excretory system include nephrons in the kidneys, which filter waste from blood and produce urine. Specific tissues like the urinary bladder store urine before excretion, while the ureters transport urine from the kidneys to the bladder. The excretory system helps regulate water balance, remove waste products, and maintain proper electrolyte levels in the body.
Cells from the excretory system do not transform into organs. Organs in the excretory system, like the kidneys and bladder, develop from specialized clusters of cells called germ layers during embryonic development. These cells undergo complex processes of differentiation and organization to form functional excretory organs.
Endocrine Cells
In the phylum Cnidaria, such as jellyfish and sea anemones, the gastrovascular cavity functions as both a digestive and excretory system. Waste and excess materials are expelled through the mouth or diffused out of the cells lining the cavity. Cnidarians do not have specialized excretory organs like kidneys.
Digenetic trematodes typically have an excretory system composed of flame cells (protonephridia) and collecting tubules. Flame cells are specialized cells that remove waste and regulate osmotic balance by using cilia to move fluids through tubules. Waste products are expelled through excretory pores. These structures help regulate the internal environment of the parasite and maintain homeostasis.
The excretory system includes cells such as nephrons in the kidneys, which help filter waste from the blood, and specialized cells in the lungs, liver, and skin that aid in excretion of metabolic waste products. Additionally, cells in the bladder and urethra are involved in the storage and elimination of urine.
Excretory system gets rid of waste. Respiratory system supplies blood cells with oxygen.
The excretory system.
The digestive system produces nutrients that are required for the cells all over the body to survive. The nutrients are brought to the cells by the circulatory system, and the wastes produced by the excretory system are taken away from the cells.
The cells found in the excretory system are: one pore cell, one duct cell, one canal cell and a pair of gland cells.
i think it has somthing to do about the type of cell needs another cell to live off otherwise the specialized cell wont exist.actually, im pretty sure it has to do with something that it depends on other systems, for example, the circulation system needs the excretory system for proper circulation of the blood.