Question

Write a short note on Excretory System.​

Answer 1

$\mathfrak\pink{Excretion}$

✍️It is the $\bold{elimination}$of metabolic waste product of the body.

✍️Waste products are unwanted toxic by product of metabolism.

✍️Eg-$\bold\red{uric\: acid,\: ammonia,\:bile\:pigment}$

✍️Another process related to this is Excretion.

✍️It is the process by which salt and water balance of the body is maintained constant.

$\mathfrak\green{Excretory\: system}$

✍️It is a system of organ and tissue that takes part in $\bold{separation\:,\: collection,}$,$\bold{removal \:of\: \:waste \:products \:out \:of\: the\: body}$

✍️It consists of

✔️$\bold\red{A\:pair \:of\:kidney}$

✔️$\bold\blue{A\:pair \:of\:ureter}$

✔️$\bold\pink{Urinary\:bladder}$

✔️$\bold\purple{Urethra}$

$\mathfrak\gray{kidney}$

✍️A pair of reddish brown solid bean shaped organ that lies in the $\bold} abdominal\: cavity}$

✍️Left kidney lies slightly higher than the right kidney.

✍️ Structural and functional unit of kidney are called the $\bold{nephrons}$

✍️ About one billion nephron occur in each kidney.

$\mathfrak\orange{Ureter}$

✍️These are whitish narrow muscular tube rising from each kidney.

✍️It moves downward and opens into the $\bold{urinary\: bladder}$

✍️It carries the urine from the kidney to the urinary bladder.

$\mathfrak\blue{Urinary\: bladder}$

✍️They are pear shaped elastic sack that stores the urine brought by the two ureters.

$\mathfrak{Urethra}$

✍️It is a long tube that takes urine from the urinary bladder to outside the opening of the urinary bladder into urethra is guarded by a $\bold{ring \:of\: muscles}$

✍️This process of urination is called $\bold\red{micturition}$