Circulatory System R

Vein

• Blood vessel carries blood to the heart
• carries the blood from the ventricle to the body
• Receives oxygen-rich blood from the lungs
• Prevents oxygen-rich and oxygen-poor blood from mixing in the heart

Aorta

• carries the blood from the ventricle to the body
• Prevents oxygen-rich and oxygen-poor blood from mixing in the heart
• This type of blood vessel is the thinnest and allows for the transfer of nutrients and oxygen to the cells of the body.
• These are the oxygen carrying cells of the blood.

Valve

• A flap of tissue that prevents blood from flowing backward
• The yellowish fluid that is in the blood that contains nutrients
• Prevents oxygen-rich and oxygen-poor blood from mixing in the heart
• carries the blood from the ventricle to the body

Left Atrium

• Receives oxygen-rich blood from the lungs
• Prevents oxygen-rich and oxygen-poor blood from mixing in the heart
• carries the blood from the ventricle to the body
• The large artery that brings blood from the heart to the lungs

Septum

• Prevents oxygen-rich and oxygen-poor blood from mixing in the heart
• carries the blood from the ventricle to the body
• This type of blood vessel is the thinnest and allows for the transfer of nutrients and oxygen to the cells of the body.
• These are the oxygen carrying cells of the blood.

atrium

• A top chamber in our heart
• Blood vessel carries blood to the heart
• This type of blood vessel is the thinnest and allows for the transfer of nutrients and oxygen to the cells of the body.
• carries the blood from the ventricle to the body

What is the arrow pointing to?

• left atrium
• right atrium
• right ventricle
• left ventricle

What is the arrow pointing to?

• right atrium
• left atrium
• right ventricle
• left ventricle

What is the arrow pointing to?

• right ventricle
• left atrium
• right atrium
• left ventricle

About how large is the human heart?

• the size of a fist
• the size of an onion
• 4.5 pounds
• I don't know