Respiratory System
Where does gas exchange occur?
What are the alveoli?
These blood vessels carry blood away from the heart
What are the arteries?
Digestion begins here
What is the mouth?
Bones are connected to each other by these
What are ligaments?
The body’s first line of defense includes these
What are skin, mucus, and saliva
This gas enters the blood from the lungs
What is oxygen?
These blood vessels carry blood back to the heart
What are veins?
Most nutrients are absorbed here
What is the small intestin?
This tough connective tissues covers the ends of bones
What is cartilage?
These proteins mark pathogens for T-cells
What are antibodies?
This muscle helps you breathe by expanding and contracting your lungs
What is the diaphragm?
The human heart has this many chambers
What is 4?
This body system includes the stomach, liver, pancreas, and intestines
What is the digestive system?
This substance inside bones produces red blood cells
What is bone marrow?
A disease-causing organism is called this
What is a pathogen?
The tiny blood vessels where oxygen and carbon dioxide are exchanged
What are the capillarie?
The tiniest blood vessels in the body
What are capillaries?
This tube Carries food from the mouth to the stomach
What is the esophagus?
Name one function of the skeletal system
What is support, protection, movement, or blood cell production?
The body’s third line of defense uses these specialized white blood cells
What are lymphocytes?
The respiratory system brings this gas into the body and removes this waste gas
What are oxygen and carbon dioxide?
This body system transports hormones throughout the body
What is the circulatory system?
Name one organ that helps digestion but food does not pass through it
What is the liver, pancreas, or gallbladder?
This body system protects organs like the heart and lungs
What is the skeletal system?
This word means keeping the body’s internal conditions stable
What is homeostasis?