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a muscular pump that is made of cardiac muscle tissue
heart
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tissue that carries all of the nutrients, wastes, hormones, etc to and from body cells
blood
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blood vessels that carry blood back to the heart
veins
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muscular blood vessels that carry blood away from heart
arteries
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smallest blood vessels
capillaries
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connect tiny veins to capillaries
venules
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subdivided arteries that join with capillaries
arterioles
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recieves deoxygenated blood from all over body
right atrium
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pumps deoxygenated blood out of the heart and into pulmonary arteries
right ventricle
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pumps oxygenated blood out of heart through aorta and to cells of body
left ventricle
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recieve oxygenated blood thats returning from lungs
left atrium
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largest artery in body, takes oxygenated blood from left ventricle, out of heart to the rest of the body
aorta
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transport oxygenated blood back to left atrium
pulmonary veins
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takes deoxygenated blood from right ventricle from heart to lungs
pulmonary arteries
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between left atrium and left ventricle
bicuspid valve
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between right atrium and right ventricle
tricuspid valve
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between left ventricle and aorta
aortic valve
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between right venticle and pulmonary trunk
pulmonary valve
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thick muscular wall that separates the right and left sides of the heart, and prevents deoxygenated and oxygenated blood from mixing
septum
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a tough loose fitting sac that covers heart
pericardium
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strong fibrous strings of connective tissue that connect to the papillary muscles, and the bottowm of the bicuspid and tricuspid valve
chordae tendineae
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small mounds of cardiac muscle tissue in walls of ventricles
papillary muscles
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large vein that brings deoxygenated blood from the lower regions of body back to the right atrium
inferior vena cava
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large vein that brings deoxygenated blood from the upper regions of the body to the right atrium
superior vena cava
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mass of tissue that initiates one pulse after another
sinoatrial node (S-A node)
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mass of specialized tissue that makes ventricles contract
atrioventricular node (A-V node)
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branches that carry impulse into ventricles
purkinje fibers
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delivers blood deep into hearts myocardium
coronary arteries
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carry blood back to the coronary sinus
cardiac veins
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large vein on posterior side of heart; empties deoxygenated blood into right atrium
coronary sinus
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outer layer of heart wall
epicardium
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middle layer of heart wall
myocardium
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inner layer of heart wall
endocardium
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red blood cells
erythrocytes
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white blood cells
leukocytes
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small bits of cytoplasm from giant cells of the bone marrow
platelets
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a yellowish fluid that transports cells, food, water, wastes, hormones, and other dissolved substances
plasma
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responsible for red color; contains iron and bonds easily with oxygen
hemoglobin
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