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The Cardiovascular System in the human body.

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The cardiovascular system's role is the move oxygen, nutrients and hormones to your body's cells to use for energy, growth and repair. It also helps your body to remove carbon dioxide.

It gathers oxygen by collecting blood that is low in oxygen in your right atrium of your heart. This blood is then moved to your right ventricle which pumps it into your lungs where your red blood cells pick up oxygen and remove carbon dioxide, which you then exhale.

It then moves this oxygen all around your body by returning the oxygen-rich blood to your heat through the left atrium and then to the left ventricle. The blood is pumped thorough your aorta to your arteries and then to all parts of your body.

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It is comprised of the:

heart

blood

blood vessels

Within that, the heart is made up of 4 chambers; the left and right atrium, and the left and right ventricle.

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Anatomy of the human heart and cardiovascular system | myVMC

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The human cardiovascular system is made up of the heart, the blood it pumps, and the blood vessels, veins and arteries, through which the blood travels.

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Oxygen-poor blood from the body enters your heart through two large veins called the superior and inferior vena cava. The blood enters the heart’s right atrium and is pumped to your right ventricle, which in turn pumps the blood to your lungs.

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The Cardiovascular System is connected to other body systems including:

Respiratory system - works with it to deliver oxygen and expel carbon dioxide.

Digestive system - cardiovascular system transports the nutrients absorbed by the digestive system.

Endocrine system - influences the cardiovascular system through hormones that affect blood vessel constriction and heart rate (e.g. adrenaline).

Nervous system - nervous system regulates heart rate and blood pressure.

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Heart Attack:

Occurs when heart muscle doesn't receive enough blood.

Symptoms include chest pain, dizzy, pain or discomfort in the jaw/neck/back and/or the arms/chest.

Treated with medication or sometimes surgery.

Recovery time between 2 weeks and 3 months.

Stroke:

Occurs when blood supply to brain is cut off which triggers the death of brain cells.

Symptoms include numbness, vision problems, difficulty speaking, confusion, dizziness or headache.

Treated with medications, procedures and rehabilitation.

Recovery time varies but most improvement is made between 3 and 6 months after.

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Can the body function without Cardiovascular System?

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Can the body function without Cardiovascular System?

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No. The cells in your body would quickly start dying without oxygen being transported to them through blood.