The diagram of human excretory system shows that it is a complex system that eliminates waste materials from the body. The wastes are byproducts of metabolism that are removed from the body through urine, feces, or sweat. The diagram of excretory system in human beings shows that it consists of a pair of kidneys and ureters, a urinary bladder, and a urethra. The diagram of the excretory system in class 10 and class 11 is an important topic in the biology syllabus.
The labeled diagram of Human Excretory System is given below:
Diagram of Excretory System
Table of Content
What is Excretory System?
We obtain nutrients from a variety of food sources, which are further digested and processed in our body. Excretion is the process of excreting wastes from the body. It is the fundamental way by which our body maintains homeostasis. Excretory system also removes the toxic byproducts of metabolism thereby helps to prevent damage to the body.
Carbon dioxide from respiration of cells, uric acid from nucleic acid catabolism, and ammonia and urea from protein catabolism are the waste that must be removed from the body. Different species use different mechanism of excretion systems, such as the kidneys, lungs, eyes, or skin, depending on their environment and dietary habits.
What are the Excretory Organs and Their Functions
The excretory organs includes the liver, lungs, skin, and kidneys, which together make up the excretory system. The diagram of excretory system in human body shows following organs:
Kidneys
- The pair of bean- shaped kidneys are the primary organs of excretion and are situated on both sides of the backbone.
- The blood arteries, nerves and ureters enter the kidneys through hilum.
- The foremost role of the kidneys is to expel excess water and wastes from the bloodstream through the production of urine.
Ureters
- These are the tubes that connect each kidney to the bladder.
- Urine is transported from the kidneys to the bladder by this slender, muscular tube by peristaltic contractions.
- Ureters prevent the backflow of urine into the kidneys through the use of ureterovesical valves.
Urinary Bladder
- It is a muscular sac-like structure in which urine is stored till micturition.
- The bladder receives urine from the ureters, one from each kidney.
Urethra
- It emerges from the urinary bladder and its role is to discharge the urine by micturition.
- It serves as common channel for urine and sperm in males.
- Sphincter muscles protect the opening of the urethra.
Other Excretory Organs
In addition to the above-mentioned excretory organs, there are other organs that perform the function of excretion. They are:
Skin
- The main function of skin is to protect the different body organs.
- The skin also contributes to excretion through the production of sweat by sweat glands.
Lungs
- Lungs are the primary respiratory organs with some excretory functions as well.
- They are responsible for the excretion of gaseous wastes, mainly carbon dioxide from cellular respiration in cells throughout the body.
Liver
- It has a crucial role in excreting waste from the body.
- It breaks down many substances in the blood such as toxins.
- It also excretes bilirubin — a waste product of haemoglobin catabolism — in bile.
Large intestine
- The main excretory function of the large intestine is to eliminate solid waste that remains once food is broken down and water is drawn from the indigestible matter.
Conclusion – Diagram of Excretory System
In conclusion, the diagram of excretory system shows that it consists of the kidneys, ureters, bladder, and urethra. The excretory system is responsible for removing waste. The excretory system also plays a crucial role in maintaining water and electrolyte balance in the body (homeostasis), as well as regulating blood pressure. It also helps in the elimination of certain drugs and toxins.
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FAQs on Diagram of Excretory System
What is Excretory System and its Diagram?
The excretory system eliminates waste from the body. The diagram of excrteory system shows the organs inclduing the kidneys, ureters, bladder, and urethra.
What is Excretory System Class 7?
The excretory system is a waste removal system in our body. It includes organs like the kidneys, ureter, urethra, and bladder.
Explain Human Excretory System with Diagram?
The human excretory system comprises organs such as the kidneys, ureters, bladder, and urethra; its diagram illustrates the structure and function of these organs in waste elimination.
What are the 5 Excretory Organs?
The skin, liver, large intestine, lungs, and kidneys are the 5 excretory organs. All of them excrete wastes.
What is the Human Excretory System?
A pair of kidneys, a pair of ureters, a urinary bladder and a urethra are the primary excretory organs. Kidneys filter the blood and urine is the filtrate produced.
How is Urine Formed?
The nephrons of the kidneys produce urine through a process of filtration, reabsorption, and secretion. Urine is around 95% water and 5% waste products.
Where is Urine Found?
Urine is found in urinary bladder which is a hollow, triangle-shaped organ located in the lower abdomen.
What is Bowman’s Capsule?
It is a part of the nephron that forms a cup-like sac and surrounds the glomerulus.