BSC 109 Lecture Notes - Lecture 21: Artificial Heart, Blurry, Stroke

• School: University of Alabama
• Department: Biological Sciences
• Course: BSC 109
• Professor: Austin R.Hicks

Document Summary

Clicker: t/f the left side of he heart pumps blood through the pulmonary circuit. (left side does systemic) Congestive heart failure: weakness of the heart causes fluid back-up in interstitial spaces: out of breath, swollen ankles, legs, neck veins. Why does the heart weaken: age, prior heart attacks, leaky heart valves, lung disease. Treatment: improve cardiac performance, efficiency, prevent accumulation of interstitial fluid. The weakening of the heart muscle has been too much. The heart is not able to pump blood fast enough. Sudden blockage of a blood vessel by material floating in the bloodstream. Often a blood clot broken away from a larger clot elsewhere. May be cholesterol deposits, tissue fragments, cancer cells, clumps of bacteria, bubbles of air. Locations: pulmonary embolism chest pain, shortness of breath, cerebral embolism may cause a stroke, cardiac embolism may cause a heart attack. Caused by a blood clot formed somewhere else and has broken off. Location determines the symptoms and the affects.