Circ
Which organ pumps blood throughout your body?
Heart
Where does digestion begin?
Mouth
What gas do we breathe in that our cells need?
Oxygen
Chewed food is called...
Bolus
What are the smallest units of life?
Cells
What does the circulatory system carry around your body?
Blood, oxygen, nutrients
Which organ breaks down food using acids and digestive Juices?
Stomach
Which organs bring oxygen into your body when you breathe?
Lungs
What 2 body systems are working together in this scenario: You are running during PE. Your heart beats faster and you breathe faster.
Circulatory and Respiratory
Which lung is smaller?
Left
How many chambers does the heart have?
4
Which organ absorbs most of the nutrients from the food you eat?
Small Intestines
What protects your heart and lungs?
Ribs
What are the upper chambers of your heart called?
Atriums
How many alveoli are in your lungs?
a. 250 million b. 400 million c. 550 million d. 600 million
600 million
What are the tiny blood vessels where oxygen and nutrients move into body tissues?
Capillaries
Where is most of the water from undigested food absorbed?
Large Intestine
What gas does your body get rid of when you breathe out?
Carbon Dioxide
Where does oxygen move into the blood in the lungs?
Alveoli
What is the average number of breathes a human takes in one day?
a. 15,000 b. 20,000 c. 25,000 d. 50, 000
20,000
What blood vessels move oxygenated blood AWAY from the heart?
Arteries
Which organ makes insulin, a hormone that helps control blood sugar?
Pancreas
What muscle helps you breathe by moving up and down beneath your lungs?
Diaphram
What are the two names we use for the throat in the digestive and respiratory system?
How long is the average adult human small intestine?
20 feet (6 meters)