FMA159001 3D mesh
Urinary bladder
A muscular reservoir in the pelvis that stores urine arriving from the kidneys through the ureters.
The kidneys filter blood and regulate fluid, electrolyte, and acid–base balance. Urine travels through the ureters to the bladder and exits through the urethra.
All 6 modeled structures in the urinary system layer (Right kidney, Left kidney, Right ureter, Left ureter, Urinary bladder, and Urethra) are individually represented in the BodyParts3D reference dataset.
Filters blood in the paired kidneys to remove metabolic waste products.
Regulates systemic fluid volume, electrolyte concentrations, and acid–base balance.
Conveys urine from the kidneys through the left and right ureters into the urinary bladder.
Stores urine in the muscular urinary bladder and eliminates it through the urethra.
Review the primary anatomical landmarks below. Click Learn more to open the dedicated page for each structure, or click Select in 3D to inspect it on the interactive 3D model.
A muscular reservoir in the pelvis that stores urine arriving from the kidneys through the ureters.
A bean-shaped retroperitoneal organ on the right side of the posterior abdominal wall that filters blood and produces urine.
The paired retroperitoneal organ on the left side that filters blood to regulate fluid, electrolyte, and acid–base homeostasis.
The muscular duct that propels urine from the right kidney inferiorly into the urinary bladder.
The muscular duct conveying urine from the left renal pelvis down to the urinary bladder.
The fibromuscular tube that conveys urine from the urinary bladder to the exterior of the body.
Every anatomical structure assigned to the Urinary layer in atlas.json. Curated landmarks include a Learn more guide, and all 6 structures can be selected directly in the 3D viewer.
Launch the 3D viewer with the Urinary activated. Orbit the camera, use the Exploded View slider to separate overlapping pieces, and click individual structures to inspect their FMA reference ID and anatomical metadata.
You have not selected any structures in the Urinary inside the 3D viewer yet during this session. Click Explore in 3D or any structure card above to inspect a structure on the 3D model.
The kidneys filter blood and regulate fluid, electrolyte, and acid–base balance.
Urine travels from the kidneys through the ureters to the urinary bladder (FMA15900) and exits through the urethra.
The urinary bladder is a muscular reservoir in the pelvis that stores urine arriving from the kidneys.
Renal arteries deliver a high volume of systemic arterial blood to the kidneys for continuous filtration.
Filtered blood exits the kidneys via the left and right renal veins to return to the inferior vena cava.
The adrenal glands sit directly superior to the kidneys, and endocrine hormones regulate renal water and electrolyte reabsorption.
Select an answer for each question below to verify your understanding of the urinary.