# data[].attributes.body
Vaishnavi

I know that the circulatory system pumps blood . It is the size of your fist and is a very strong muscle

# data[].attributes.body
I know that veins and arteries have different jobs (one takes blood away from the heart and one goes back to the heart, but i always mix up which is which)

I would like to know why blood is red but looks blue through your skin

# data[].attributes.body
I know that circulatory system pumps blood around your body

A question that I have is why does the heart have four chambers?

# data[].attributes.body
I know that the circulatory system involves the hearts organ system

Is blood blue
or red?

# data[].attributes.body
I know that the circulatory system involves pumping blood to and around your heart.
A question that I have is why does your heart beat faster when you are out of breath or nervous?

# data[].attributes.body
i know that the veins and arteries bring blood away from the heart and one brings it back to the heart.

how much blood is in your body???

# data[].attributes.body
know the circulatory system has veins and arteries.

my question is how much energy is needed to pump the blood around your body.

# data[].attributes.body
I know that circulatory system has veins, arteries and the heart

I want to know how fast blood travels

# data[].attributes.body
I know the circulatory system moves blood around your body.
My question is: Why does your heart rate increase when you do something very important.

# data[].attributes.body
I know that red blood cells flow though the heart

How fast is the circulatory system ?

# data[].attributes.body
I know the circulatory system pumps the blood around the body.

A question that I have is how fast blood can travel?

# data[].attributes.body
I know that the circulatory system involves keeping the blood in our bodies flowing so we stay alive.

# data[].attributes.body
I know the circulatory system has the veins, arteries, and heart.
How do the arteries and veins move the blood?

# data[].attributes.body
It involves veins and arteries.
Why does your heart beat faster when you exercise.

# data[].attributes.body
The circulatory system transports blood throughout the body with arteries, and then the when the oxygen is taken out, the blood returns to the heart through veins, to collect oxygen again. The heart speed depends on how much blood is pumped through the body.

I wonder how fast the blood travels?

# data[].attributes.body
I know that arteries carry blood and oxygen away and to the muscles from the heart and veins bring it back, how do the arteries and veins move the blood.

# data[].attributes.body
The circulatory system have different jobs. It involves blood, veins and the heart

How fast or slow does the blood travel?

# data[].attributes.body
I Know the circulatory system involves blood flowing around your body
I want to know how much blood flows around in our body

# data[].attributes.body
The circulatory system involves the heart, and lungs, the two main components. These are both very important because the body can't function without them. The heart sends dark red blood to the lungs, and the lungs give the cells oxygen, turning them a lighter red color and then sending it back to the heart. Afterwards, the heart sends this blood to every part in the body.

What are the other parts of the Circulatory System and which are the most important?

# data[].attributes.body
I know that the circulatory system includes the heart, veins, arteries, and blood vessels, and the heart pumps blood around the body.
My question is: How fast can the heart pump blood around the body and how often does it do this per minute?