The Heart Muscular Size of a closed fist Weighs 12-13 oz Location thoracic cavity – APEX conical tip, lies on diaphragm, points left – Stethoscope instrument used to hear the – heartbeat Structure Hollow, muscular, double pump that circulates blood At rest = 2 oz blood with each beat, 5 qts./min., 75 gallons per hour Ave = 72 beats per minute 100,000 beats per day PERICARDIUM double layer of fibrous tissue – that surrounds the heart MYOCARDIUM cardiac muscle tissue – ENDOCARDIUM smooth inner lining of heart –
The Heart Muscular Size of a closed fist Weighs 12-13 oz Location – thoracic cavity APEX – conical tip, lies on diaphragm, points left Stethoscope – instrument used to hear the heartbeat Structure Hollow, muscular, double pump that circulates blood At rest = 2 oz blood with each beat, 5 qts./min., 75 gallons per hour Ave = 72 beats per minute 100,000 beats per day PERICARDIUM – double layer of fibrous tissue that surrounds the heart MYOCARDIUM – cardiac muscle tissue ENDOCARDIUM – smooth inner lining of heart
Cardio%20Notes.docx