How many chambers are there inside the heart?
4 
Single most important decision you can make for your respiratory system is not to ________. It is the main cause of lung cancer.
Smoke
Name a task of the stomach
mixing food with gastric juices, storing partially digested food and liquid, moving food into the small intestine.
bean shaped organs about the size of a fist
kidneys
a measure of the amount of force that blood places on the walls of blood vessels
blood pressure
Which is not part of the lymphatic system? tonsils, kidneys, adenoids, lymph nodes
kidneys 
This is also known as the windpipe
trachea
inflammation of the appendix is called
appendicitis
Name 3 organs part of the excretory system.
large intestine, lungs, skin, liver, kidneys and bladder
muscle that separates the chest from the abdominal cavity
diaphragm
What component of blood contains iron that binds with oxygen?
red blood cells 
bronchi
small intestine
Tiny filtering units of the kidneys are called the..
nephrons
clear fluid that fills the spaces around body cells
lymph
To maintain the circulatory system, a person should participate in regular _________ exercise at least 30min 3-4x per week
aerobic
This is an inflammatory condition in which the trachea, bronchi, and bronchioles become narrowed, causing difficulty breathing
asthma
The series of involuntary muscle contractions that move through the digestive tract is called
peristalsis
Disorder that is inflammation of the bladder
cystitis
What is hemodialysis
a technique in which an artificial kidney machine removes waste products from blood
What are the three main kinds of blood vessels and what are their functions?
arteries- carry oxygenated blood away from the heart to the rest of the body
capillaries- allow the exchange of gases, nutrients, and wastes between blood and cells.
veins-return oxygen depleted blood back to the heart
Which problems of the respiratory system might be caused by smoking? (2)
Emphysema and bronchitis
What is the pathway of food through the digestive system?
mouth down through the esophagus, to the stomach, into the small intestine, large intestine, then wastes eliminated from the body
Explain how the ureter, a urethra, and urethritis are different
a ureter is a tube that connects a kidney to the bladder. The urethra leads from the bladder to the outside of the body. urethritis is and inflammation of the urethra
What is a yellow green bitter fluid important in the breakdown and absorption of fats?
Bile