Human Anatomy and Physiology : VI. Excretory System

The liver is responsible for the detoxification of alcohol.
Liver detoxify harmful substances through the complex chemical reactions.

Excretion of average urine in the adult human body is around 1.5 litres per day. About 91-96% of urine consist of water.

A pigment urochrome is the reason for the yellow colour of human urine. It is also known as urobilin.

The renal artery carries blood that contains waste products to the nephrons for filtering. After waste products are removed, cleaner blood leaves the kidney by way of the renal vein. Thus, statement 1 is wrong while statement 2 is correct. From Bowman’s capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.

Dialysis is a process for removing waste and excess water from the blood and is used primarily as an artificial replacement for lost kidney function in people with kidney failure. Dialysis filters out unwanted substances and fluids from the blood.

Dialysis is a process for removing waste and excess water from the blood and is used primarily as an artificial replacement for lost kidney function in people with kidney failure. Dialysis filters out unwanted substances and fluids from the blood.

The treatment options for kidney failure are peritoneal dialysis (PD), hemodialysis and kidney transplant. A dialyzer is an artificial kidney designed to provide controllable transfer of solutes and water across a semipermeable membrane separating flowing blood and dialysate streams.

Kidneys remove excess organic molecules from the blood and, it is by this action that their best-known function is performed—the removal of waste products of metabolism. They serve the body as a natural filter of the blood and remove water-soluble wastes, such as urea and ammonium and they are also responsible for the reabsorption of water, glucose and amino acids.

The process, ultrafiltration occurs at the barrier between the blood and the filtrate in the renal capsule in the kidney. The kidneys remove urea and other toxic wastes from the blood, forming a dilute solution called urine in the process.

In humans, kidneys are the main organ of the excretion system. Filtering the blood and removing unnecessary and waste products from the body is the basic function of kidney.