Heart
What does the size of your heart compare to?
A clenched fist
Does you blood contain bits of silver or bits of gold?
Gold
These tubes carry blood throughout the body.
Blood Vessels
This is the element directly related to blood pressure.
Sodium
Is it true that your heart can break?
It is possible but extremely rare
What is the hearts main function?
To pump blood around your body as your heart beats
What do White blood cells do?
White blood cells fight off infections
List in order the biggest to smallest blood vessels.
arteries, veins, capillaries
This is the organ that regulates blood pressure.
The kidney
What day of the week do most heart attacks happen on?
Monday mornings
True or False: Heart cells stop dividing after time
True
How long does it take for a drop of blood to travel from the heart, through your body, and back to the heart again?
20 - 60 seconds
What are three the kinds of blood vessels?
Arteries, veins, and capillaries
High blood pressure can make your heart...
Work too hard and lose strength
Why do giraffes have lopsided hearts?
The heart has to get blood up the giraffe’s long neck to reach their brain
Your left ventricle in bigger/larger than the right ventricle
Name the three main parts of your blood
Red blood cells, White blood cells, and Platelets
This is the place where blood releases oxygen while receiving carbon dioxide.
Capillary tissue
High blood pressure is a "______".
High blood pressure is a “silent killer”
What living creature has the smallest heart?
The fairy fly ( a type of wasp )
What causes the sound of a beating heart?
Valves of the heart opening and closing
Why do veins appear blue?
Blue light is reflected back to our eyes
or
Blue light does not penetrate human tissue
This is the number of miles of blood vessels in the human body. (to the nearest 10,000)
60,000 miles
True or False: Blood pressure increases with age.
False, your blood pressure increases when arteries get stiffer, which depends on many factors. Sometimes your blood pressure goes up with age, but not all of the time.
The electrical system that controls the rhythm of your heart is called ________.
It’s called the cardiac conduction system