The circulatory system is made of the heart and blood vessels. (T / F)
True! They work together to circulate your blood.
The familiar symbol of the heart representing love developed in the 18th century. (T / F)
False! It developed in the 15th century and became popular in Europe in the 16th century.
Your body has more than 96,000 km of blood vessels. (T / F)
True! Actually, it's even more in adults: closer to 160,000 km!
Veins carry blood away from the heart. (T / F)
False! Veins carry blood to the heart.
The heart can continue beating even when it’s disconnected from the body. (T / F)
True! The heart has its own electrical system that causes it to pump blood as long as it has oxygen!
A man’s heart beats slightly faster than a woman’s heart. (T / F)
False! A woman’s heart beats slightly faster than a man’s heart!
If you want to legally sell your heart in the USA, it can be purchased for about $1 million (23B VND) (T / F)
True! Though often hearts are often sold illegally for cheaper, around $120,000 (2.7B VND).
The heart pumps about 72 liters of blood each day. (T / F)
False! The heart pumps about 7,200 liters of blood each day.
Iron in red blood cells gives human blood its color. (T / F)
True! About 70 percent of your body's iron is found in the red blood cells.
Worldwide, 72,000 people die from heart disease every year. (T / F)
False! 7.2 million people worldwide die from heart disease every year.
The first possible use of a heart as a symbol of romantic love dates to the 1250s. (T / F)
True! Some historians disagree if this is the first example, but it could be!
Elephants have the largest heart of any mammal. (T / F)
False! Whales have the largest heart of any mammal.
Arteries and veins are both types of blood vessels. (T / F)
True! Both are tubes that carry blood through the tissues and organs.
Most heart attacks happen on a Monday. (T / F)
True! Hmm, I wonder why!
The youngest person to receive heart surgery was only a minute old. (T / F)
True! She had a heart defect that many babies don’t survive. Her surgery was successful, but she’ll eventually need a heart transplant.
Laughing is good for your heart. (T / F)
True! Laughing reduces stress and gives a boost to your immune system.
Before the invention of the stethoscope, doctors had to put their ear on patients' chests. (T / F)
True! The stethoscope was invented in France in 1816 by René Laennec because he wasn't comfortable placing his ear onto a woman's chest to listen to her heart!
Your heart pumps about 600 ml of blood with each beat. (T / F)
False! Your heart pumps about 60 ml of blood with each beat.
Your heart will beat more than 100,000 times each day. (T / F)
True! It is more or less depending on age, weight, and exercise!
The human heart has two ventricles. (T / F)
True! The heart has the left and right ventricle.