Question

mention 4 structures other than kidney which helps in excretion

Answer 1

The nephron is the structural and functional unit of the kidney. Each human adult kidney contains around 1 million nephrons while a mouse kidney contain only about 12,500 nephrons. The kidney participates in the control of the volume of various body fluidcompartments, fluid osmolality, acid-base balance, various electrolyte concentrations, and removal of toxins. Filtration occurs in the glomerulus: one-fifth of the blood volume that enters the kidneys is filtered