The excretory system is responsible for removing waste physics/high-school/rotational-motion-universal-gravitation?dictionary=products&did=2271" onclick="getAsistant(this,event,2271,'products');return false;" style="color:#009000;">products from the body and maintaining physics/high-school/rotational-motion-universal-gravitation?dictionary=homeostasis&did=883" onclick="getAsistant(this,event,883,'homeostasis');return false;" style="color:#009000;">homeostasis. It consists of several physics/high-school/rotational-motion-universal-gravitation?dictionary=organs&did=954" onclick="getAsistant(this,event,954,'organs');return false;" style="color:#009000;">organs, including the physics/high-school/rotational-motion-universal-gravitation?dictionary=kidneys&did=1031" onclick="getAsistant(this,event,1031,'kidneys');return false;" style="color:#009000;">kidneys, physics/high-school/rotational-motion-universal-gravitation?dictionary=ureters&did=1491" onclick="getAsistant(this,event,1491,'ureters');return false;" style="color:#009000;">ureters, physics/high-school/rotational-motion-universal-gravitation?dictionary=bladder&did=1492" onclick="getAsistant(this,event,1492,'bladder');return false;" style="color:#009000;">bladder, and physics/high-school/rotational-motion-universal-gravitation?dictionary=urethra&did=1493" onclick="getAsistant(this,event,1493,'urethra');return false;" style="color:#009000;">urethra, as well as the physics/high-school/rotational-motion-universal-gravitation?dictionary=skin&did=1410" onclick="getAsistant(this,event,1410,'skin');return false;" style="color:#009000;">skin and physics/high-school/rotational-motion-universal-gravitation?dictionary=lungs&did=1028" onclick="getAsistant(this,event,1028,'lungs');return false;" style="color:#009000;">lungs.
Functions of the Excretory System
The excretory system performs the following functions:
Removal of waste physics/high-school/rotational-motion-universal-gravitation?dictionary=products&did=2271" onclick="getAsistant(this,event,2271,'products');return false;" style="color:#009000;">products: The physics/high-school/rotational-motion-universal-gravitation?dictionary=kidneys&did=1031" onclick="getAsistant(this,event,1031,'kidneys');return false;" style="color:#009000;">kidneys filter waste physics/high-school/rotational-motion-universal-gravitation?dictionary=products&did=2271" onclick="getAsistant(this,event,2271,'products');return false;" style="color:#009000;">products, such as urea and excess physics/high-school/rotational-motion-universal-gravitation?dictionary=ions&did=2232" onclick="getAsistant(this,event,2232,'ions');return false;" style="color:#009000;">ions, from the physics/high-school/rotational-motion-universal-gravitation?dictionary=blood&did=1251" onclick="getAsistant(this,event,1251,'blood');return false;" style="color:#009000;">blood and excrete them in the form of urine.
Regulation of physics/high-school/rotational-motion-universal-gravitation?dictionary=water&did=802" onclick="getAsistant(this,event,802,'water');return false;" style="color:#009000;">water and electrolyte balance: The excretory system helps maintain the balance of physics/high-school/rotational-motion-universal-gravitation?dictionary=water&did=802" onclick="getAsistant(this,event,802,'water');return false;" style="color:#009000;">water and electrolytes in the body by regulating the amount of physics/high-school/rotational-motion-universal-gravitation?dictionary=water&did=802" onclick="getAsistant(this,event,802,'water');return false;" style="color:#009000;">water and physics/high-school/rotational-motion-universal-gravitation?dictionary=ions&did=2232" onclick="getAsistant(this,event,2232,'ions');return false;" style="color:#009000;">ions excreted in urine.
Regulation of physics/high-school/rotational-motion-universal-gravitation?dictionary=blood&did=1251" onclick="getAsistant(this,event,1251,'blood');return false;" style="color:#009000;">bloodphysics/high-school/rotational-motion-universal-gravitation?dictionary=pressure&did=994" onclick="getAsistant(this,event,994,'pressure');return false;" style="color:#009000;">pressure: The physics/high-school/rotational-motion-universal-gravitation?dictionary=kidneys&did=1031" onclick="getAsistant(this,event,1031,'kidneys');return false;" style="color:#009000;">kidneys play a role in regulating physics/high-school/rotational-motion-universal-gravitation?dictionary=blood&did=1251" onclick="getAsistant(this,event,1251,'blood');return false;" style="color:#009000;">bloodphysics/high-school/rotational-motion-universal-gravitation?dictionary=pressure&did=994" onclick="getAsistant(this,event,994,'pressure');return false;" style="color:#009000;">pressure by controlling the volume of physics/high-school/rotational-motion-universal-gravitation?dictionary=blood&did=1251" onclick="getAsistant(this,event,1251,'blood');return false;" style="color:#009000;">blood and the physics/high-school/rotational-motion-universal-gravitation?dictionary=concentration&did=2279" onclick="getAsistant(this,event,2279,'concentration');return false;" style="color:#009000;">concentration of physics/high-school/rotational-motion-universal-gravitation?dictionary=ions&did=2232" onclick="getAsistant(this,event,2232,'ions');return false;" style="color:#009000;">ions in the physics/high-school/rotational-motion-universal-gravitation?dictionary=blood&did=1251" onclick="getAsistant(this,event,1251,'blood');return false;" style="color:#009000;">blood.
physics/high-school/rotational-motion-universal-gravitation?dictionary=acid-base+balance&did=2543" onclick="getAsistant(this,event,2543,'acid-base balance');return false;" style="color:#009000;">Acid-base balance: The excretory system helps regulate the pH of the physics/high-school/rotational-motion-universal-gravitation?dictionary=blood&did=1251" onclick="getAsistant(this,event,1251,'blood');return false;" style="color:#009000;">blood by excreting physics/high-school/rotational-motion-universal-gravitation?dictionary=hydrogen&did=1062" onclick="getAsistant(this,event,1062,'hydrogen');return false;" style="color:#009000;">hydrogenphysics/high-school/rotational-motion-universal-gravitation?dictionary=ions&did=2232" onclick="getAsistant(this,event,2232,'ions');return false;" style="color:#009000;">ions and reabsorbing bicarbonate physics/high-school/rotational-motion-universal-gravitation?dictionary=ions&did=2232" onclick="getAsistant(this,event,2232,'ions');return false;" style="color:#009000;">ions.
physics/high-school/rotational-motion-universal-gravitation?dictionary=organs&did=954" onclick="getAsistant(this,event,954,'organs');return false;" style="color:#009000;">Organs of the Excretory System
The major physics/high-school/rotational-motion-universal-gravitation?dictionary=organs&did=954" onclick="getAsistant(this,event,954,'organs');return false;" style="color:#009000;">organs of the excretory system include:
physics/high-school/rotational-motion-universal-gravitation?dictionary=kidneys&did=1031" onclick="getAsistant(this,event,1031,'kidneys');return false;" style="color:#009000;">Kidneys: The physics/high-school/rotational-motion-universal-gravitation?dictionary=kidneys&did=1031" onclick="getAsistant(this,event,1031,'kidneys');return false;" style="color:#009000;">kidneys filter the physics/high-school/rotational-motion-universal-gravitation?dictionary=blood&did=1251" onclick="getAsistant(this,event,1251,'blood');return false;" style="color:#009000;">blood and produce urine by removing waste physics/high-school/rotational-motion-universal-gravitation?dictionary=products&did=2271" onclick="getAsistant(this,event,2271,'products');return false;" style="color:#009000;">products and excess substances.
physics/high-school/rotational-motion-universal-gravitation?dictionary=ureters&did=1491" onclick="getAsistant(this,event,1491,'ureters');return false;" style="color:#009000;">Ureters: The physics/high-school/rotational-motion-universal-gravitation?dictionary=ureters&did=1491" onclick="getAsistant(this,event,1491,'ureters');return false;" style="color:#009000;">ureters are tubes that carry urine from the physics/high-school/rotational-motion-universal-gravitation?dictionary=kidneys&did=1031" onclick="getAsistant(this,event,1031,'kidneys');return false;" style="color:#009000;">kidneys to the physics/high-school/rotational-motion-universal-gravitation?dictionary=bladder&did=1492" onclick="getAsistant(this,event,1492,'bladder');return false;" style="color:#009000;">bladder.
physics/high-school/rotational-motion-universal-gravitation?dictionary=bladder&did=1492" onclick="getAsistant(this,event,1492,'bladder');return false;" style="color:#009000;">Bladder: The physics/high-school/rotational-motion-universal-gravitation?dictionary=bladder&did=1492" onclick="getAsistant(this,event,1492,'bladder');return false;" style="color:#009000;">bladder stores urine until it is expelled from the body.
physics/high-school/rotational-motion-universal-gravitation?dictionary=urethra&did=1493" onclick="getAsistant(this,event,1493,'urethra');return false;" style="color:#009000;">Urethra: The physics/high-school/rotational-motion-universal-gravitation?dictionary=urethra&did=1493" onclick="getAsistant(this,event,1493,'urethra');return false;" style="color:#009000;">urethra is a tube that carries urine from the physics/high-school/rotational-motion-universal-gravitation?dictionary=bladder&did=1492" onclick="getAsistant(this,event,1492,'bladder');return false;" style="color:#009000;">bladder to the outside of the body.
Other Excretory physics/high-school/rotational-motion-universal-gravitation?dictionary=organs&did=954" onclick="getAsistant(this,event,954,'organs');return false;" style="color:#009000;">Organs
In addition to the physics/high-school/rotational-motion-universal-gravitation?dictionary=kidneys&did=1031" onclick="getAsistant(this,event,1031,'kidneys');return false;" style="color:#009000;">kidneys and physics/high-school/rotational-motion-universal-gravitation?dictionary=urinary+system&did=1715" onclick="getAsistant(this,event,1715,'urinary system');return false;" style="color:#009000;">urinary system, the physics/high-school/rotational-motion-universal-gravitation?dictionary=skin&did=1410" onclick="getAsistant(this,event,1410,'skin');return false;" style="color:#009000;">skin and physics/high-school/rotational-motion-universal-gravitation?dictionary=lungs&did=1028" onclick="getAsistant(this,event,1028,'lungs');return false;" style="color:#009000;">lungs also play a role in physics/high-school/rotational-motion-universal-gravitation?dictionary=excretion&did=1393" onclick="getAsistant(this,event,1393,'excretion');return false;" style="color:#009000;">excretion:
physics/high-school/rotational-motion-universal-gravitation?dictionary=skin&did=1410" onclick="getAsistant(this,event,1410,'skin');return false;" style="color:#009000;">Skin: The physics/high-school/rotational-motion-universal-gravitation?dictionary=skin&did=1410" onclick="getAsistant(this,event,1410,'skin');return false;" style="color:#009000;">skin eliminates waste physics/high-school/rotational-motion-universal-gravitation?dictionary=products&did=2271" onclick="getAsistant(this,event,2271,'products');return false;" style="color:#009000;">products, such as sweat, through the process of sweating.
physics/high-school/rotational-motion-universal-gravitation?dictionary=lungs&did=1028" onclick="getAsistant(this,event,1028,'lungs');return false;" style="color:#009000;">Lungs: The physics/high-school/rotational-motion-universal-gravitation?dictionary=lungs&did=1028" onclick="getAsistant(this,event,1028,'lungs');return false;" style="color:#009000;">lungs excrete physics/high-school/rotational-motion-universal-gravitation?dictionary=carbon+dioxide&did=799" onclick="getAsistant(this,event,799,'carbon dioxide');return false;" style="color:#009000;">carbon dioxide and physics/high-school/rotational-motion-universal-gravitation?dictionary=water+vapor&did=800" onclick="getAsistant(this,event,800,'water vapor');return false;" style="color:#009000;">water vapor when we breathe out.
Study Guide
When studying the excretory system, it is important to focus on the following key concepts:
Understand the functions of the excretory system, including the removal of waste physics/high-school/rotational-motion-universal-gravitation?dictionary=products&did=2271" onclick="getAsistant(this,event,2271,'products');return false;" style="color:#009000;">products, regulation of physics/high-school/rotational-motion-universal-gravitation?dictionary=water&did=802" onclick="getAsistant(this,event,802,'water');return false;" style="color:#009000;">water and electrolyte balance, and physics/high-school/rotational-motion-universal-gravitation?dictionary=maintenance&did=1610" onclick="getAsistant(this,event,1610,'maintenance');return false;" style="color:#009000;">maintenance of physics/high-school/rotational-motion-universal-gravitation?dictionary=blood&did=1251" onclick="getAsistant(this,event,1251,'blood');return false;" style="color:#009000;">bloodphysics/high-school/rotational-motion-universal-gravitation?dictionary=pressure&did=994" onclick="getAsistant(this,event,994,'pressure');return false;" style="color:#009000;">pressure and pH balance.
Learn about the structure and function of the major physics/high-school/rotational-motion-universal-gravitation?dictionary=organs&did=954" onclick="getAsistant(this,event,954,'organs');return false;" style="color:#009000;">organs of the excretory system, such as the physics/high-school/rotational-motion-universal-gravitation?dictionary=kidneys&did=1031" onclick="getAsistant(this,event,1031,'kidneys');return false;" style="color:#009000;">kidneys, physics/high-school/rotational-motion-universal-gravitation?dictionary=ureters&did=1491" onclick="getAsistant(this,event,1491,'ureters');return false;" style="color:#009000;">ureters, physics/high-school/rotational-motion-universal-gravitation?dictionary=bladder&did=1492" onclick="getAsistant(this,event,1492,'bladder');return false;" style="color:#009000;">bladder, and physics/high-school/rotational-motion-universal-gravitation?dictionary=urethra&did=1493" onclick="getAsistant(this,event,1493,'urethra');return false;" style="color:#009000;">urethra.
Understand the role of the physics/high-school/rotational-motion-universal-gravitation?dictionary=skin&did=1410" onclick="getAsistant(this,event,1410,'skin');return false;" style="color:#009000;">skin and physics/high-school/rotational-motion-universal-gravitation?dictionary=lungs&did=1028" onclick="getAsistant(this,event,1028,'lungs');return false;" style="color:#009000;">lungs in physics/high-school/rotational-motion-universal-gravitation?dictionary=excretion&did=1393" onclick="getAsistant(this,event,1393,'excretion');return false;" style="color:#009000;">excretion and how they contribute to the overall function of the excretory system.
Study the processes involved in urine formation, including physics/high-school/rotational-motion-universal-gravitation?dictionary=filtration&did=2181" onclick="getAsistant(this,event,2181,'filtration');return false;" style="color:#009000;">filtration, reabsorption, and secretion in the nephron.
Understand how the excretory system interacts with other physics/high-school/rotational-motion-universal-gravitation?dictionary=systems&did=955" onclick="getAsistant(this,event,955,'systems');return false;" style="color:#009000;">systems in the body, such as the circulatory and physics/high-school/rotational-motion-universal-gravitation?dictionary=respiratory+systems&did=1200" onclick="getAsistant(this,event,1200,'respiratory system');return false;" style="color:#009000;">respiratory systems, to maintain physics/high-school/rotational-motion-universal-gravitation?dictionary=homeostasis&did=883" onclick="getAsistant(this,event,883,'homeostasis');return false;" style="color:#009000;">homeostasis.
By focusing on these key concepts, you will develop a strong understanding of the excretory system and its role in maintaining the body's internal physics/high-school/rotational-motion-universal-gravitation?dictionary=environment&did=923" onclick="getAsistant(this,event,923,'environment');return false;" style="color:#009000;">environment.
Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as either motions of particles or energy stored in fields.