What makes up the excretory system?
| Organ (s) | Function |
| Lungs | Remove carbon dioxide. |
| Skin | Sweat glands remove water, salts, and ot ... |
| Large intestine | Removes solid waste and some water in th ... |
| Kidneys | Remove urea, salts, and excess water fro ... |
What are the 3 main functions of the excretory system?
Primary Excretory System Organs
- Kidneys Kidneys are bean-shaped organs of a reddish brown color that are found in the sides of the vertebral column. ...
- Skin The skin performs its excretory function via the sweat glands. ...
- Lungs
Which system is part of the excretory system?
There is the following main excretory system in humans:
- Kidneys
- Renal Arteries
- Renal vein
- Ureters or Excretory tubes
- Urinary bladder
- Urethra
What is the main purpose of excretory system?
What are the 6 functions of the urinary system?
- Remove waste products and medicines from the body.
- Balance the body’s fluids.
- Balance a variety of electrolytes.
- Release hormones to control blood pressure.
- Release a hormone to control red blood cell production.
- Help with bone health by controlling calcium and phosphorus.
What are facts about the excretory system?
- We have two kidneys, in which the left one is always higher than the right one.
- One of the most interesting facts about the excretory system is that the human bladder can hold up to 400 ml of urine.
- The skin is also considered a part of the excretory system because by removing sweat it helps eliminate various toxins from the body.
What is the excretory system?
The excretory system is made up of numerous organs that work in unison to ensure that waste is effectively removed from your body. Below are the details of the organs of excretory system, along with the roles they play in detoxification.
What are the primary excretory system organs?
Primary Excretory System Organs. 1. Kidneys. Kidneys are bean-shaped organs of a reddish brown color that are found in the sides of the vertebral column. Once the body has extracted what it needs from food and drink, it sends the wastes to the kidneys.
What is the most common disease that affects the excretory system?
Cystitis. Cystitis is the medical term for inflammation of the bladder and it is one of the most common disease that affects excretory system organs. As the bladder stores urine before it is excreted from the body, bacteria can build up in the bladder and cause cystitis. 5. Urinary Tract Infection.
What is the function of the ureter tubes?
The ureters tubes of smooth muscle fiber transfer liquid waste from the kidneys into the urinary bladder. The urine is moved with peristaltic movements which force the urine away from the kidneys. The ureters also have ureterovesical valves which ensure the waste fluid does not travel back into the kidney.
What organ is responsible for keeping the body clean?
Liver. Although considered a secondary, or accessary excretory system organ, the liver plays a vital part in keeping the body clean. Harmful poisons and chemicals that are either produced in the body or consumed are broken down and detoxified by the liver.
How does sweat work?
The skin performs its excretory function via the sweat glands. These glands produce sweat that contains salt, excess oils, water, and other unnecessary substances which are then excreted out of the body through small pores. Sweating also helps to cool the body during evaporation.
Where is waste fluid discharged?
When needed, it is discharged into the small intestine whose role is to break down fats, ethanol and other acidic wastes. 3. Urinary Bladder. The waste fluid that is created in the liver and collected in the kidney is transferred into the urinary bladder where it is temporarily stored until the individual urinates.
Functions of the excretory system
As has been said, the essential role of the excretory system is the filtering of residual nitrogenous substances from the metabolism , to allow the blood to complete its cycle as free of harmful impurities as possible.
Urine constitution
It is a watery, yellowish liquid, with a characteristic odor (due to its nitrogen-rich composition) and semi-transparent. Normally a human being secretes and exploits 1.4 liters of urine, whose content is 95% water, 2% inorganic salts, 3% urea and uric acid.
Urethra
This is the name of the tube that carries urine from the bladder out of the body, and it is different according to the male or female gender:
Other forms of excretion
There are other ways the body excretes harmful substances, which do not involve the excretory system, such as:
What is the system of excretion?
In complex organisms including humans, there is a specialized system for excretion called human excretory system . We all obtain our nutrients from different sources which are later digested and metabolized in our body.
What excretory product do humans produce?
Humans produce urea as the major excretory product. Let us have a detailed look at the excretory system notes to explore the excretory system in human beings, different organs of the excretory system and the mechanism of excretion in humans. Also Read: Excretory Products and their Elimination.
What is the process where all the metabolic wastes are removed from the body?
Excretion is the process where all the metabolic wastes are removed from the body. Excretion in humans is carried through different body parts and internal organs in a series of processes.
How is urine produced?
Urine thus produced is passed to the urinary bladder via the ureters. The urinary bladder is under the control of the Central Nervous System. The brain signals the urinary bladder to contract and through the urinary opening called the urethra, we excrete the urine.
What are the two parts of the nephron?
Each nephron has two parts- glomerulus and renal tubule. Glomerulus consists of a bunch of capillaries formed by afferent arterioles. Blood from glomerulus is carried away by efferent arterioles. The renal tubule starts with a cup-like structure called Bowman’s capsule and this encloses the glomerulus.
How many nephrons are in a kidney?
Each kidney contains a million nephrons. Capillaries of kidneys filter the blood and the essential substances like glucose, amino acids, salts, and the required amount of water get reabsorbed and the blood goes into circulation. Excess water and nitrogenous waste in humans are converted to urine.
How does the body remove waste from the body?
As we all know, the accumulation of the toxins may be harmful and the body removes all the metabolic wastes by the process called excretion. Different organisms follow different modes of excretion such as kidney, lungs, skin and eyes depending on their habitat and food habit.
