Contraction of the muscle fibers within the heart is controlled by electricity
Posted by admin on Jan 19, 2008
Contraction of the muscle fibers within the heart is controlled by electricity. This flows through the heart in a precise manner, along distinct pathways and at a controlled speed. The electrical current that begins each heartbeat, originates in the heart”s pacemaker, located in the top of the upper right heart chamber (right atrium). The rate at which the pacemaker discharges the electrical current determines the heart rate. This rate is influenced by nerve impulses and levels of certain hormones within the bloodstream.
State medical assistance programs provide affordable health care for people with limited income
Posted by admin on Jan 19, 2008
State medical assistance programs provide affordable health care for people with limited income. They help pay for prescription medications, hospitalizations, health insurance and doctor visits. Contact your local hospital”s social worker or a local social services department to determine if your State has this program.