Open main menu

Difference between revisions of "Excretory System"

 
Line 2: Line 2:
 
===Meaning===
 
===Meaning===
 
[[File:ExcretorySystem.png|right|300px|thumb|A [[diagram]] of the '''excretory system'''.]]
 
[[File:ExcretorySystem.png|right|300px|thumb|A [[diagram]] of the '''excretory system'''.]]
The '''excretory system''' is an [[Organ System|organ system]] in [[animal]]s that removes the waste products from [[Cell (Biology)|cells]].
+
The '''excretory system''' is an [[Organ System|organ system]] in [[animal]]s that removes the [[urea]] from the [[blood]].
  
 
===About the Excretory System===
 
===About the Excretory System===
: Some of the waste produced by [[Cell (Biology)|cells]] are [[toxic]] to [[Cell (Biology)|cells]] so the '''excretory system''' also removes [[toxic|toxins]] from the [[blood]].
+
: [[Urea]] is [[toxic]] to [[Cell (Biology)|cells]] so the '''excretory system''' is essential to remove it from the [[blood]].
 
: The '''excretory system''' is made of the following parts:
 
: The '''excretory system''' is made of the following parts:
:*The [[Kidney]]s - Which filter the [[blood]] to remove waste.
+
:*The [[Kidney]]s - Which filter the [[blood]] to remove [[urea]].
 
:*The [[Ureter]]s - Tubes which transport [[urine]] from the [[kidney]]s to the [[bladder]].
 
:*The [[Ureter]]s - Tubes which transport [[urine]] from the [[kidney]]s to the [[bladder]].
 
:*The [[Bladder]] - Where [[urine]] is stored before being released.
 
:*The [[Bladder]] - Where [[urine]] is stored before being released.
Line 18: Line 18:
  
 
===About the Excretory System===
 
===About the Excretory System===
: Some of the waste produced by [[Cell (Biology)|cells]] are [[toxic]] to [[Cell (Biology)|cells]] so the '''excretory system''' also removes [[toxic|toxins]] from the [[blood]].
+
: [[Urea]] is [[toxic]] to [[Cell (Biology)|cells]] so the '''excretory system''' is essential to remove it from the [[blood]].
 
: The '''excretory system''' is made of the following parts:
 
: The '''excretory system''' is made of the following parts:
:*The [[Kidney]]s - Which filter the [[blood]] to remove waste.
+
:*The [[Kidney]]s - Which filter the [[blood]] to remove [[urea]], excess [[water]] (for [[Osmoregulation]]) and [[salt]].
 
:*The [[Ureter]]s - Tubes which transport [[urine]] from the [[kidney]]s to the [[bladder]].
 
:*The [[Ureter]]s - Tubes which transport [[urine]] from the [[kidney]]s to the [[bladder]].
 
:*The [[Bladder]] - Where [[urine]] is stored before being released.
 
:*The [[Bladder]] - Where [[urine]] is stored before being released.
 
:*The [[Urethra]] - A tube to allow [[urine]] to be released from the [[bladder]].
 
:*The [[Urethra]] - A tube to allow [[urine]] to be released from the [[bladder]].

Latest revision as of 11:16, 5 April 2019

Key Stage 3

Meaning

A diagram of the excretory system.

The excretory system is an organ system in animals that removes the urea from the blood.

About the Excretory System

Urea is toxic to cells so the excretory system is essential to remove it from the blood.
The excretory system is made of the following parts:

Key Stage 4

Meaning

A diagram of the excretory system.

The excretory system is an organ system in animals that removes the waste products from cells.

About the Excretory System

Urea is toxic to cells so the excretory system is essential to remove it from the blood.
The excretory system is made of the following parts: