The Body’s Transport System. The Cardiorespiratory system. The Cardiovascular System. Consists of the heart, blood vessels, and blood. . The Cardiovascular System. The cardiovascular system carries needed substances to cells and carries waste products away from cells.
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Consists of the heart, blood vessels, and blood.
The cardiovascular system carries needed substances to cells and carries waste products away from cells.
Blood contains cells that fight disease.
Blood carries oxygen from your lungs to your other body cells.
Blood also transports glucose cells use to produce energy.
The cardiovascular system removes wastes from cells.
The waste product of carbon dioxide is passed from cells into the blood and carried to the lungs where it is exhaled.
The cardiovascular system also transports cells that attack disease-causing microorganisms.
It is about the size of your fist.
The heart lies beneath the sternum and inside the rib cage.
It is made of cardiac muscle, which contracts over and over again without getting tired.
Left atrium fills with blood from the lungs
Continues into left ventricle
Blood is then pumped into the aorta, the largest artery in the body.
Blood then flows to different parts of your body.
Blood vessels are in close contact with body cells
Oxygen moves out of the blood and into body cells
Carbon Dioxide passes from the body cells into the blood and back to the right atrium of the heart.
Arteries are blood vessels that carry blood away from the heart.
Have very thick wall structure
Can withstand enormous pressure of pumped blood
Coronary arteries branch off the aorta and carry blood to the heart
The layer of muscle in the artery adjusts the amount of blood sent to the different organs.
From the arteries, blood flows into tiny, narrow vessels called capillaries. Substances are exchanged between the blood and body cells.
Capillaries are only one cell thick
Blood pressure travelling through blood vessels exerts a force against the walls of the blood vessels. This is called blood pressure.
Blood pressure decreases as blood moves away from the heart
Blood pressure is measured with an instrument called a sphygmomanometer
Blood is expressed in mmHg
First # is when ventricles contract
Second # is when ventricles relax
The Respiratory System removes oxygen from the outside environment into the body.
Carbon Dioxide and water are removed as waste products from the body.
As air travels from the outside to the lungs, it passes through the nose, pharynx, trachea, and bronchi.
Air enters here into the nasal cavities
Mucus produced here warms the air and keeps lining from drying out
Cilia sweep mucus into the throat, where it is swallowed
Air enters the pharynx or throat.
Both the nose and the mouth connect to the pharynx
Air moves from the trachea to the bronchi in the lungs
Bronchi are passages that direct air into the lungs
The lungs are the main organs of the respiratory system
Each bronchus divides into smaller and smaller tubes called bronchioles
They resemble branches of a tree
Alveoli are tiny sacs of lung tissue at the end of the bronchioles.
These are specialized for the movement of gases between air and blood.
During gas exchange, oxygen moves from alveoli into the blood and carbon dioxide moves from the blood into the alveoli
When you inhale, the rib muscles contract, lifting the chest wall up and outward. The diaphragm contracts and moves downward.
Rib muscles and diphragm relax
Size of chest cavity is reduced
Air is squeezed out of lungs