Excretory System
The organs that filter blood to remove toxins and excess water.
What are the kidneys?
The chambers at the top of the human heart.
What are the atria?
A dome-shaped muscle that pushes the lungs up and down to let us breathe.
What is the diaphragm?
The bottom two chambers of the heart.
What are ventricles?
The sites where oxygen gets exchanged for carbon dioxide.
What are the alveoli?
Two tubes that connect the kidneys to the bladder.
What are the ureters?
Carry blood back into the heart.
What are veins?
Also known as the voice box.
What is the larynx?
Most of the time carry oxygen-poor blood.
What are veins?
It is smaller to give space to the heart.
What is the left lung?
The muscular bag that holds urine.
What is the urinary bladder?
Blood vessels that carry blood away from the heart.
What are arteries?
A tube also known as the windpipe.
What is the trachea?
Cause blood clotting.
What are platelets?
Another way to call the process of breathing.
What is respiration?
The name of the tube through which urine exits the body.
What is the urethra?
Have thick walls to withstand high blood pressure.
What are arteries?
Smaller tubes that the bronchi are divided into.
What are bronchioles?
Liquid part of the blood that carries everything else besides oxygen.
What is plasma?
What is the respiratory system?
One type of toxic waste that the cells produce and that gives urine its characteristic smell.
What is urea?
A group of organs that Provide all the cells in the body with oxygen and nutrients as well as collecting waste from the cells.
What is the circulatory system?
The process of absorbing oxygen and releasing carbon dioxide.
What is gas exchange?
They have valves to prevent the backflow of blood.
Why are veins?
It is collected from the cells and exits the body through the lungs.
What is carbon dioxide?