📍Acitivity 6: The Urinary System 🔬

🫧Frog Kidney
Each renal pyramid contains numerous nephrons, which are the functional units of the kidneys. The primary function of the frog’s kidneys is to filter the blood. The kidneys remove waste products such as urea, uric acid, and ammonia from the blood and excrete them in the form of urine.

🫧Human Kidney
The kidney participates in the control of the volume of various body fluids, 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. Examples of substances reabsorbed are solute-free water, sodium, bicarbonate, glucose, and amino acids.

🫧Ureter
The ureters are bilateral, muscular, tubular structures, responsible for taking urine from one kidney to the urinary bladder for storage, before excretion. After the blood has been filtered in the kidneys, the filtrate undergoes a series of reabsorptions and exudation throughout the length of the convoluted tubules.

🫧Bladder
The bladder is part of the urinary tract. It is a hollow, balloon-like organ that collects and releases urine from the body. It is attached to the pelvic bones and other organs and can hold around 2 cups of fluid. When functioning normally, a person’s bladder will collect and expel urine regularly throughout the day.