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A&PII Test 1 Review
Cardiac, Circulatory, respiratory
| Term | Definition |
|---|---|
| Pericardium | Membrane that covers the heart |
| Aortic Semilunar Valve | Prevents blood from flowing back into the left ventricle |
| Pulmonary Semilunar Valve | Prevents blood from flowing back into the right ventricle |
| SA Node | pacemaker of the heart |
| Purkinje fibers | cardiac conduction located in the walls of the ventricles |
| AV node | received the impulse from the SA node |
| Parasympathetic nerve system | keeps heart rate low |
| Sympathetic nerve system | speeds heart rate up |
| arteries | vessels that carry blood away from the heart |
| Radial artery | supplies blood to the forearm and hand |
| Saphenous vein | major vein of the legs |
| Axillary vein | carries blood away from the armpit |
| Angina | cardiac chest pain |
| Atherosclerosis | hardening of the arteries due to fatty plaque |
| P-wave | represents atrial depolarization |
| QRS complex | represents ventricular depolarization |
| T wave | represents ventricular repolarization |
| Platelets | essential for clotting |
| hematocrit | percentage of RBCs found in a blood sample |
| Erythropoietin | hormone that controls the production of RBCs |
| Three-Four months | life span of a RBC |
| Nuetrophils | destroy bacteria and viruses |
| embolus | part of the thrombus that breaks off |
| AB | universal recipients |
| O | universal donor |
| Myocardial infarction | occurs when an embolus lodges in a coronary artery |
| African Americans | Race most likely affected by sickle cell anemia |
| 4-6 liters | amount of blood in the human body |
| hyperventilation | decreased carbon dioxide levels in the blood |
| cilia | hair like structures that push mucus toward the pahrynx |
| nasal septum | divides the nasal cavity |
| alveoli | tiny air sacs in lungs for gas exchange |
| epiglottis | prevents food from entering the airway |
| Medulla oblongata | controls respiratory rhythm |
| residual volume | air that remains the lungs at all times |
| virus that lasts 5-10 days | influenza |
| asthma | inflammation of the tubes of the bronchial tree |
| COPD | limited airflow to the lungs and enlarged alveoli |
| Pneumothorax | collection of air in the chest around the lungs |
| Pulmonary Embolism | blocked artery in the lungs |
| SIDS | to avoid place a baby on its back to sleep |
| lung cancer | caused by smoking, radon, asbestos, or industrial carcinogens |
| trachea | wind pipe |
Created by:
jrmayo
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