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Circulatory24
Question | Answer |
---|---|
Located in the chest between the lungs | Heart |
Send blood away from heart | Artery |
Exchanges nutrients with cells | Capillaries |
Transports blood to the heart | Vein |
Blood that is rich in oxygen | Oxygenated Blood |
Blood that returns to the heart | Deoxygenated Blood |
Double walled membrane sac | Pericardium |
Prevents friction when the heart beats | Pericardial Fluid |
External layor of heart | Epicardium |
Middle and thickest layor of heart | Myocardium |
Lining of heart | Endocardium |
Two upper chambers of the heart | Atria |
Two lower chambers of the heart | Ventrical |
Between right and left ventrical | Septum |
Between right and left atria | Apex |
Carries deoxygenated blood from top half of body to the heart | Superior vena cava |
Largest arteryin the body | Aorta |
Carries deoxygenated blood from lower half of body to the heart | Inferior vena cava |
Carries blood from the heart to the lungs | Pulmonary Artery |
Carries blood from the lungs to the left atrium of the heart | Pulmonary Vein |
Dividing wall or partition of the lower chambers of the heart | Septum |
Innermost layer of heart tissue | Endocardium |
The inner layer of the pericardium that is in actual contact with the surface of the heart | Epicardium |
Receives blood returning to the heart from the superior and inferior vena cava | Atria |
Contains the heart and the roots of the great vessels | Pericardium |
When the heart Tightens up | Contraction |
When the heart exands | Relaxation |
When nerves stimulate the myocardium | Electrical impulses |
Sounds the heart makes | Lubb/Dubb |
Measures the pressure of the blood | Blood Pressure |
Number on top when measuring blood pressure | Systolic |
Pressure when the ventricles are relaxed | Diastolic |
120/80 | Normal blood pressure |