Bodily Injury Claims: Study 5
Heart and Other Organs
Heart and Circulatory System:
- Heart is hollow, muscular organ
- Located behind and slightly left of sternum
- Specialized cardiac muscle tissue is called myocardium (myocardial tissue)
- Heart is encased in membranous sac called pericardium
- Heart itself is nourished by blood that sustains continuous muscular activity
- Heart muscle is always “working” and must “rest” in brief period between contractions known as diastole
- During pumping cycle, called systole, it contracts to squeeze blood through various chambers to rest of body
- Heart is divided into 4 chambers: