THE HUMAN CARDIOVASCULAR SYSTEM BY: DIANA ARROYO, SAWANI GOONATILLEKE, PRIYANKA SONI.
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Transcript of THE HUMAN CARDIOVASCULAR SYSTEM BY: DIANA ARROYO, SAWANI GOONATILLEKE, PRIYANKA SONI.
THE HUMAN CARDIOVASCULAR
SYSTEM
THE HUMAN CARDIOVASCULAR
SYSTEMBY: DIANA ARROYO, SAWANI GOONATILLEKE, PRIYANKA
SONIBY: DIANA ARROYO, SAWANI GOONATILLEKE, PRIYANKA
SONI
BLOOD CELLS
BONE MARROW
BLOOD
BLOOD VESSELS
HEART
CIRCULATION
DISEASES
THE CARDIOVASCULAR SYSTEM
BLOOD CELLSblood has two main types of cells RBCs and WBCs plus pieces of cell called platelets
RBCs look round with a small dent in the middle
mainly contain hemoglobin
hemoglobin-allows RBCs to transport oxygen around your body
RBCs contain enzymes that the body uses to make certain chemical processes happen.
WBCs are also called leucocytes which mostly fight infections
FACT: There are 5 million RBCs in 1 drop of blood
BONE MARROWbones contain a core of jellylike substance called marrow
color can either be red or yellow depending on whether it has more blood or fat tissue
is the factory or production of all the body’s blood cells
All bone marrow is yellow when you are a baby, but as you grow older, the majority of it turns yellow
Adults have red marrow only in the spine, breastbone, ribs, shoulder blades, pelvis, and skull
Yellow bone marrow stores fat, but it can turn into red marrow when you are ill
The many different kinds of blood cells all start as red marrow as a cell called a stem cell. Different blood cells develop as stem cells divide repeatedly.
Some stem cells divide and form RBCs and platelets
BLOODliquid that circulates through out the body
Made up of: Red Blood Cells(RBC), White Blood Cells(WBC), Platelets, 90% Water, and many other substances (nutrients & hormones)
carries: oxygen, food to all cells
takes carbon dioxide and wastes away
fights infection, keeps you warm, & distributes chemicals
oxygen turns your blood bright red but in your veins its almost brown
Platelets contribute to clotting which stops you from bleeding
Types of Blood: A+ , A- , B-, B+, AB+, AB-, O+, O-
BLOOD VESSELShave 3 varieties arteries, veins, and capillaries
capillaries connect to arteries then to veins which bring blood back to the heart
If we stuck all our blood vessels end to end it would stretch
100,000 kmenough to wrap around
earth twice with leftover
The HeartAorta- the largest artery that transports blood from the left ventricle to the body
Pulmonary Artery- carries Deoxygenated blood from the right ventricle to the lungs
Pulmonary Vein- Transports Oxygenated blood from the lungs to the left Atrium
Right Atrium- receives Deoxygenated blood from the body
Left Atrium- receives Oxygenated blood from the lungs and pumps it down into the left ventricle which delivers it to the body
Right Ventricle- pumps Deoxygenated blood into the Pulmonary Artery
Left Ventricle- pumps Oxygenated blood into the Aorta
Coronary Vessels- supplies the Heart muscle with blood
Arteries- carry blood AWAY from the heart
Veins- carry blood TOWARD the heart
Arteries- carry blood AWAY from the heart
Vena Cava- largest vein of the body that carries blood from the body back to the heartIN THE AVERAGE LIFETIME THE HEART PUMPS 53 MILLION GALLONS OF BLOOD.
CIRCULATION1. When air is taken in, Blood starts its journey through the body in the right atrium.
2. The oxygenated blood then flows through into right ventricle.
3. Then blood reaches the lungs after traveling through the pulmonary artery.
4. From the lungs, the blood flows back to the pulmonary vein to the left atrium.
5. Gases are exchanged in the lungs. CO2 is released by the blood and oxygen is absorbed.
6. Then It flows down to the into the left ventricle.
7. The oxygenated blood is then pumped into the aorta.
8. Between the major arteries, aorta forks and blood is divided to supply the upper and lower body through a network of veins, capillaries, and smaller arteries.
9. Then, the blood goes through the arteries and then the arterioles to reach capillaries. The capillaries feed every cell with oxygen.
10. The blood is deoxygenated by the time it reaches the veins.
11. The deoxygenated blood then flows through the inferior and superior vena cava to finally arrive at the right atrium.
12. The circulation of blood starts again.
Cardiovascular Diseases Coronary Heart Disease (CHD)
The arteries that carry blood shrink due to the fact of a plaque buildup that consists of fat. The symptoms can lead to heart attacks, chest pains, lightheadedness, and difficulty breathing
However the site in which the plaque is located in decides what type of disease, for example Coronary Artery Disease- plaque blocks blood pathways to the
heart Peripheral Artery Disease- plaque blocks blood pathways to
arms/ legs Carotid Artery Disease- plaque blocks blood pathways to the
brain
Cardiovascular Diseases Heart Failure Occurs after there has been an injury to the heart muscle due
to a heart attack or cholesterol. The factors include diabetes, heart murmur, and enlarged heart.
Symptoms include: - Difficulty breathing - Fatigue - Swelling of legs and feet Stroke This is caused by the Carotid Disease since the arteries that
transport oxygen and blood are blocked. This then stall the blood transport causing the artery to clot and/ or burst. Thus causing brain cells to die
BIBLIOGRAPHYInternet SiteCardiovascular Disease. Department of Health. http://www.health.ny.gov/diseases/cardiovascular/heart_disease/
Internet SiteCongenital Heart Disease. Cedars Sinai. http://www.cedars-sinai.edu/Patients/Health-Conditions/Congenital-Heart-Disease.aspx?gclid=CJHRtvv4jrcCFceDQgodomMACQ
VideoThe Human Circulatory System Explained. Internet Site By: EcoGeeks http://video.answers.com/the-human-circulatory-system-explained-517283877
BookSilver Dolphin Books. Human Body. Silver Dolphin Books, 2006