How does the urinary system work?
The urinary organization ‘s function is to filter blood and create urine as a waste by-product. The organs of the urinary system include the kidneys, nephritic pelvis, ureters, bladder and urethra .
The torso takes nutrients from food and converts them to energy. After the body has taken the food components that it needs, waste products are left behind in the intestine and in the blood .
The kidney and urinary systems help the body to eliminate liquid barren called urea, and to keep chemicals, such as potassium and sodium, and water in proportion. Urea is produced when foods containing protein, such as meat, poultry, and sealed vegetables, are broken down in the consistency. Urea is carried in the bloodstream to the kidneys, where it is removed along with water and other wastes in the form of urine.
Reading: Anatomy of the Urinary System
other authoritative functions of the kidneys include blood pressure regulation and the product of erythropoietin, which controls crimson lineage cell production in the bone marrow. Kidneys besides regulate the acid-base balance and conserve fluids .
Kidney and urinary system parts and their functions
Two kidneys. This pair of purple-brown organs is located below the ridicule toward the in-between of the back. Their function is to :
- Remove waste products and drugs from the body
- Balance the body ‘s fluids
- Release hormones to regulate rake imperativeness
- Control production of bolshevik lineage cells
The kidneys remove urea from the rake through bantam filtering units called nephrons. Each nephron consists of a testis formed of small blood capillaries, called a glomerulus, and a minor tube called a nephritic tubule. Urea, together with water and early waste substances, forms the urine as it passes through the nephrons and down the nephritic tubules of the kidney .
- Two ureters. These narrow tubes carry urine from the kidneys to the bladder. Muscles in the ureter walls continually tighten and relax forcing urine down, away from the kidneys. If urine backs up, or is allowed to stand hush, a kidney infection can develop. About every 10 to 15 seconds, small amounts of urine are emptied into the bladder from the ureters .
Bladder. This triangle-shaped, hollow organ is located in the lower abdomen. It is held in place by ligaments that are attached to early organs and the pelvic bones. The bladder ‘s walls relax and expand to store urine, and contract and flatten to empty urine through the urethra. The typical goodly pornographic bladder can store up to two cups of urine for two to five hours.
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Upon examination, specific “ landmarks ” are used to describe the location of any irregularities in the bladder. These are :
- Trigone : a triangle-shaped region near the junction of the urethra and the bladder
- correct and left lateral pass walls : walls on either side of the trigone
- Posterior wall : back wall
- attic : roof of the bladder
- Two sphincter muscles. These circular muscles help keep urine from leaking by closing tightly like a arctic band around the opening of the bladder .
- Nerves in the bladder. The nerves alert a person when it is time to urinate, or empty the bladder .
- Urethra. This tube allows urine to pass outside the body. The mind signals the bladder muscles to tighten, which squeezes urine out of the bladder. At the same time, the brain signals the sphincter muscles to relax to let urine exit the bladder through the urethra. When all the signals occur in the correct ordain, normal micturition occurs .
Facts about urine
- Normal, goodly urine is a picket straw or crystalline yellow color.
- Darker yellow or honey colored urine means you need more water .
- A blue, brown color may indicate a liver-colored trouble or hard dehydration .
- pink or red urine may mean blood in the urine .