¡SANGRE! 6 curiosas preguntas

The video explores the significance and functions of blood, including nutrient transport, pH regulation, and heat retention. It discusses hematophobia, the fear of blood, and its physiological effects. The creation of blood in bones and the myth of blue blood in royalty are explained. Different blood types and their evolutionary background are covered, along with the evolutionary origin of blood, likening it to the sea in our veins.

What is one of the primary functions of blood in the body?

• To store energy

• To transport nutrients

• To digest food

• To produce hormones

Why do some people faint at the sight of blood?

• Because of an allergic reaction

• As a result of dehydration

• Because of a sudden drop in blood pressure

• Due to a lack of oxygen

Where is blood primarily produced in the human body?

• In the bones

• In the heart

• In the liver

• In the kidneys

What is the role of leukocytes in the blood?

• To fight infections

• To form clots

• To regulate temperature

• To transport oxygen

What is the scientific explanation for the myth of blue-blooded royalty?

• Their blood is actually blue

• They have a unique blood type

• Their skin is more transparent

• An optical illusion makes veins appear blue

How are blood types determined?

• By the color of the blood

• By the amount of hemoglobin

• By the presence of certain proteins

• By the sugary coating on red blood cells

What does the evolutionary origin of blood suggest about its composition?

• It is similar to volcanic lava

• It is similar to freshwater

• It is similar to ancient sea water

• It is similar to plant sap