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BSF:
Body Structure and Function - Cardiovascular System I:
| Question | Answer |
|---|---|
| what separates the atria? | interatrial septum |
| what separates the ventricles? | interventricular septum |
| what are the internal muscular ridges of the ventricles? | trabeculae carneae |
| what are the folds of fibrous tissue extending into the openings between atria and ventricles? | valves |
| right AV valve? | tricupsid valve |
| left AV valve? | mitral/ bicuspid valve |
| how many people have mitral valve prolapse? | 10% of 14-30 year olds |
| what is mitral valve prolapse? | minor abnormality in valve shape |
| how many layers does the heart wall have? | 3 |
| outer epicardium? | serous membrane with exposed epithelium and underlying layer of areolar tissue |
| middle myocardium? | cardiac muscle tissue, blood vessels and nerves |
| inner endocardium? | simple squamous epithelium and underlying areolar tissue |