cardiac tissue and seem to be more reliable to indicate possible Myocardial Infarction. ANGIOPLASTY: A process in which a balloon is threaded through the aorta, into a blocked coronary artery. The balloon is inflated which flattens the deposits against the vessel wall. Sometimes a STENT , a wire mesh tube, is also inserted to hold the vessel open, allowing for increased blood flow. CORONARY BYPASS Surgical procedure done when coronary arteries are blocked. Healthy segments of blood vessels are taken from other parts of patient’s body and are used to re-route the blood, around the obstruction. A HEART-LUNG MACHINE is used during the procedure. The heart can be stopped so the surgeons can work, but the patient’s blood goes through the machine, where it is oxygenated and CO2 removed. ENZYMES When clots are causing an Myocardial Infarction, STREPTOKINASE. T-PA or UROKINASE can be used to break up the clot. They activate the inactive plasminogen into PLASMIN, which breaks down the clot. They need to be given ASAP. HEART TRANSPLANT Surgical procedure in which a diseased heart is removed and replaced by one from a immunocompatible donor. Patient’s must take drugs that suppress their immune systems for the rest of their lives in order to avoid rejection. ARTIFICIAL HEART: Mechanical pump that replaces the heart. Only being used as a “stop-gap”, until a donor heart can be found. CARDIAC ASSISTED DEVICE Implanted mechanism that assists heart in its functioning. Originally designed to be temporary until donor heart is found. Readings - Read and study on your own. Fair game for exam! o Homeostatic Imbalance 18.1 – Pericarditis o Homeostatic Imbalance 18.2 – Heart Valves o Homeostatic Imbalance 18.3 – Angina Pectoris and Myocardial Infarction o Homeostatic Imbalance 18.4 – Arrhythmias o Homeostatic Imbalance 18.5 – ECG indications of heart problems o Homeostatic Imbalance 18.6 – Heart Murmurs o Homeostatic Imbalance 18.7 – Hyper/Hypocalcemia and Hyper/Hypokalemia 21
o Homeostatic Imbalance 18.8 – Tachycardia and Bradycardia o Homeostatic Imbalance 18.9 – Congenital Heart Defects Chapter 19 – The Cardiovascular System: Blood Vessels Chapter Objectives : 19.1 – Describe the three layers that typically form the wall of a blood vessel, and state the function of each. - Define vasoconstriction and vasodilation. 19.2 – Compare and contrast the structure and function of the three types of arteries. 19.3 – Describe the structure and function of a capillary bed. 19.4 – Describe the structure and function of veins and explain how veins differ from arteries. 19.5 – Explain the importance of vascular anastomoses. 19.6 – Define blood flow, blood pressure, and resistance, and explain the relationship between these factors. 19.7 – Describe how blood pressure differs in the arteries, capillaries, and veins. 19.8 – List and explain the factors that influence blood pressure, and describe how blood pressure is regulated.
- Fall '16
- Lambrini Nicopoulos