Draw a Labelled Diagram of the Excretory System of Humans

Q. DRAW A LABELLED DIAGRAM OF THE EXCRETORY SYSTEM OF HUMANS

• The human excretory system is a biological phenomenon with passive functioning

• It aids in the removal of excess, unwanted waste products from the human body.Furthermore, maintaining equilibrium i.e. the internal homeostasis

• The dual roles of excretory systems are as follows:

1. Elimination and removal of the unwanted metabolic wastes –

2. Secondly, weaning of the body from the taken up and broken down fragments in their liquid and gaseous form.

• The excretory products can be in the form of 

1. Urine

2. During the process of exhalation

3. Via sweating, excess water is expelled out through the skin pores.

This process is well evident in human species and other amniotes for example birds, reptiles and mammals

DESCRIPTION OF DIFFERENT SEGMENTS OF EXCRETORY SYSTEM

1. KIDNEYS

The primary significant role of kidneys is the removal of waste products from the bloodstream by urine production. Additionally, it also helps to 

• Regulate extracellular fluid volume

• Balance exchange of ions and minerals

• Excretory metabolic wastes are products like ammonia, urea and uric acid

2. URETERS

• The pair of ureters are the ducts that propel urine in the urinary bladder through the kidneys

• The length of the ureter in the human adult usually ranges from 25–30 cm/ 10–12 inches

3. URINARY BLADDER

• The urinary bladder is a muscular distensible (elastic) structure

• Through the route of the ureters, the urine enters the bladder and makes its way out via the urethra

• Before the process of urination, the urinary bladder is responsible for the storage and collection of urine before its disposal

4. URETHRA

• The urethra is a tube-like structure bridging the urinary bladder to the outer environment of the body

• It is the structure responsible for the excretory function in both the genders i.e. males and females