4.3.1 heart blood flow - kenwood academy high school€¦ · name%_____%% %...
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4.3.1: The Heart of the Matter
Blood flows through the heart, and through your body, in a very specific sequence. The cardiovascular system includes your heart, blood, and blood vessels. Blood vessels include arteries, veins, and capillaries. All blood vessels are RED. Arteries carry oxygen-‐rich blood away from the heart. Veins carry oxygen-‐poor blood toward the heart. Capillaries are very thin blood vessels where the exchange of gases and nutrients occurs. The major function of the cardiovascular system is transportation and exchange of oxygen, nutrients, cell wastes and hormones.
© Heather Peterson, HASPI 2013 52#
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Answer Key
A. Superior vena cava B. Inferior vena cava C. Right atrium D. Right coronary artery E. Right coronary vein F. Circumflex artery G. Left coronary artery H. Left coronary vein I. Pulmonary arteries J. Pulmonary veins K. Left atrium L. Aorta M. Ligamentum arteriosum N. Right ventricle O. Left ventricle
P. Apex
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4.3.1:%The%Heart%of%the%Matter%%
Blood%flows%through%the%heart,%and%through%your%body,%in%a%very%specific%sequence.%The%cardiovascular%system%includes%your%heart,%blood,%and%blood%vessels.%Blood%vessels%include%arteries,%veins,%and%capillaries.%All%blood%vessels%are%RED.%Arteries%carry%oxygenIrich%blood%away%from%the%heart.%Veins%carry%oxygenIpoor%blood%toward%the%heart.%Capillaries%are%very%thin%blood%vessels%where%the%exchange%of%gases%and%nutrients%occurs.%The%major%function%of%the%cardiovascular%system%is%transportation%and%exchange%of%oxygen,%nutrients,%cell%wastes%and%hormones. %%%%%%%%%%%%%%%%%%%%%%%
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Label%each%area%of%the%heart:%%
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Arrange%these%events%in%the%correct%order%starting%with%F.%%%
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Heart%Facts:%*The%adult%heart%beats%4I5%quarts%throughout%your%body.%%
*Average%adult%heart%beats%100,000%times%a%day.%*Average%human%heart%weighs%11%oz.%
*The%heart%has%its%own%electrical%impulse%and%can%pump%even%without%a%brain%(if%it%still%has%oxygen).%
Iyou%do%not%need%to%know%these%for%class%
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A.%The%left%ventricle%contracts%and%blood%flows%along%the%aorta%to%the%body.%%%
B.%The%blood%flows%through%the%tricuspid%valve%into%the%right%ventricle.%%%
C.%Oxygenated%blood%flows%along%the%pulmonary%veins%into%the%left%atrium.%%%
D.%The%blood%passes%through%the%mitral%valve%into%the%left%ventricle.%%%
E.%The%left%atrium%contracts.%%%
F.%Deoxygenated%blood%flows%from%the%inferior%and%superior%vena%cava%into%the%right%atrium.%%%
G.%The%deoxygenated%blood%picks%up%oxygen.%%%
H.%The%right%atrium%contracts.%%
I.%The%right%ventricle%contracts%and%blood%flows%%along%the%pulmonary%artery%to%the%lungs.%
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Right%pulmonary%artery,%Left%atrium,%Left%pulmonary%artery,%%Right%pulmonary%vein,%Superior%vena%cava,%Left%pulmonary%vein,%%Right%atrium,%Inferior%vena%cava,%Right%ventricle,%Left%ventricle%
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The Heart
* The pulmonary arteries carry oxygen-‐poor blood away from the heart toward the lungs. * The pulmonary veins carry oxygen-‐rich blood toward the heart away from the lungs. * Coronary arteries carry oxygenated (oxygen-‐rich) blood to the heart. * Coronary (cardiac) veins carry deoxygenated (oxygen-‐poor) blood from the heart.
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Fitness Zone Online The Heart 3
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EvaluationLook at the parts of the heart in Figure 1.5, and describe the importance
of that part of the heart on the next page.
Figure 1.5
Pulmonary valve
Right atrium
Tricuspid valve
Right ventricle
Left atrium
Aortic valve
Mitral valve
Left ventricle
Septum
Superior vena cavaAortic arch
Branch to carotid artery
Right pulmonaryartery
Left pulmonaryveins Left pulmonary
veins
Left pulmonaryartery
Vena cava
C01-06A
The Heart—Activity 3
Right pulmonary veins
Inferior
4.3.2: Varicose Veins
Varicose veins occur because valves within veins do not function normally and allow blood to pool in the veins, which causes twisting and swelling of the veins. There are many differences between veins, arteries, and capillaries. Label each in the figure to the left. List some differences between these blood vessels and be sure to explain why haven’t you heard of varicose arteries?
Label each vein as normal or varicose.
The diagram to the right shows the major arteries and veins of your legs, please use this to determine the path of a RBC from your left big toe to your right big toe.
Cardiac Conduction: * SA Node à AV Node à _ AV Bundle / Bundle of His _ àBundle FibersàPurkinje Fibers
* The electrical activity _of the heart can be _ recorded using ___ an EKG or ECG
(electrocardiogram)
* The P wave is the depolarization of the atria and contraction. * The QRS complex is the depolarization of the ventricles and contraction. * The T wave is repolarization of the ventricles, preparing for the next beat * A heartbeat is from R to R