# data[].attributes.body
allows for blood to flow back into the body

# data[].attributes.body
The thickest layer; in the middle

# data[].attributes.body
Double layered membrane that covers the outside of the heart

# data[].attributes.body
fluid that is 90% water with a lot of dissolved substances

# data[].attributes.body
Blood vessel that carries blood to the lungs

# data[].attributes.body
Receives blood from the body

# data[].attributes.body
Receives blood from the right atrium and pumps blood into the pulmonary artery

# data[].attributes.body
Muscular wall that separates the right and left sides

# data[].attributes.body
Contraction of the heart

# data[].attributes.body
Platelets; fragments of cells that lack nuclei

# data[].attributes.body
Valve that moves blood from left atrium to left ventricle

# data[].attributes.body
Blood vessels that carry oxygen deprived blood