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Circulatory 10
| Question | Answer |
|---|---|
| The hollow muscular organ | Heart |
| sends oxygenated blood away from the heart | Artery |
| Exchanges nutrients with cells. | Capillaries |
| Gets blood from all body tissues. -Oxygen poor- | Veins |
| Brings oxygen to all cells. Important in immune and endocrine system. | Blood |
| relatively pure, into the carotid arteries taking blood to the head (and brain) | Oxygenated Blood |
| Cardiology Blood with a low O2 saturation relative to blood leaving the lungs | Deoxygenated Blood |
| Double walled membrane sac, encloses the heart | Pericarium |
| Prevents friction when heart beats | Pericardium |
| Outter layer of heart, inner layer of pericardium sac | Epicardial |
| Consists of cardiac muscle, middle and thickest layer of heart | Myocardium |
| Inner lining of heart, direct contact with blood pumping; smooth | Endocardium |
| Both upper chambers of heart, gets blood from all parts of the body. Blood vessels come into the heart | Atria |
| Both lower chambers of the heart, pumps blood to all body tissue. | Ventricles |
| Seperating wall, located betweem right and left artia. | Septum |
| Narrow tip of the heart. | Apex |
| Carries deoxygenated blood to upper half of the body. | Superior vena cava |
| Largest artery in the body, extends from left ventrical to abdomen. | Aorta |
| Carries blood to lower half of the body. | Inferior vena cav |
| Carry blood from heart to lungs. | Pulmonary artery |
| One of four vessels that carries blood from the lungs to left atrium. | Pulmonary vein |
| Connection between artery and veins. | Capillaries |
| Blood must have fresh supply of oxygen. | Artery |
| Receives waste products from blood. | Veins |
| Tightens, pumps blood in a sequence. | Contraction |
| Releases, and expands, pumps blood in correct sequence. | Relaxation |
| nerve stimulate myocardium, determines rate and regulatory heart beat. | Electrical Impulses |
| 1st and 2nd heart sound, makes heart sounds when closing valves. | Lubb/Dubb |
| Measures pressure by the pressure against the walls of the vessels. | Blood Pressure |
| Occurs when ventricle contracts, highest pressure agianst walls. | Systolic |
| Happens when ventricle relaxes, low pressure against walls. | Diastolic |
| 130/84 mm. Hg | Normal Adult Pressure |