# data[].attributes.body
On one side are the
arteries and arterioles and on the
other side, the capillaries merge into small vessels called venules that combine to form
larger vessels called veins.

# data[].attributes.body
fluid exchange is caused by difference in pressure and water concentration in the capillary network. Higher fluid pressure on the arterial side of a capillary network causes water to diff use from the blood into the tissue fluid.
On the venous side of the capillary
network, the concentration of water in the blood is less than the concentration of water in
the tissue. Th is exchange of
fluids maintains a balance between fluids in the circulatory system and in the tissues.

# data[].attributes.headline
The major arteries and veins of the human circulatory system.

# data[].attributes.subject
The major arteries and veins of the human circulatory system.

# data[].attributes.body
Blood exerts pressure onto the walls of the circulatory system. The walls exert force back at it, and causes an increase in blood pressure. A sphygmomanometer is used to measure blood pressure. It measures the systollic pressure first, which is the pressure in the artery, and the diastollic pressure second, when the heart is relaxed and blood flows through the artery.

# data[].attributes.body
The system has two roles, one in the circulatory system and the other in the immune system. With the circulatory system it helps keep blood volume maintainable. While with the immune system it filters bacteria and other components from the blood.

Lympth: Tissue fluid collected in lympth vessels returned to blood.

Lympth Node: Enlargement to the lymph that acts has a filter to remove any bacteria or foreign particles.

Spleen: Largest organ of the lymphatic system, acts as a filter and a reservoir of erythrocytes and leukocytes.

# data[].attributes.body
The arteries is a blood vessel that carries blood away from the heart towards the body tissue.
The large artery called the aorta leaves the heart branching onto the main arteries that carry blood around the body.
When blood is forced through the artery and then contracted by the heart it creates the pulse.
The pulse is found near the top of the skin in-front of a bone or other firm structure, it is used to find the persons heart rate.

# data[].attributes.body
When an arteriole reaches the tissue of the body, it branches further into smaller blood vessels called capillaries. Capillaries form the network of blood vessels that supply oxygen and nutrients  to every cell throughout the body tissues. The capillaries merge in a mirror image of the way they branched from the artioles, forming larger blood vessels on the opposite side of a capillary network. Capillary networks are so extensive that no body cell is farther than two cells away from a capillary.