Function of heart

  What is the heart’s function? Your heart’s main function is to move blood throughout your body. Your heart also: Controls the rhythm and speed of your  heart rate . Maintains your  blood pressure . How does your heart work with other organs ? Your heart works with other body systems to control your heart rate and other body functions. The primary systems are: Nervous system:  Your  nervous system  helps control your heart rate. It sends signals that tell your heart to beat slower during rest and faster during stress. Endocrine system:  Your  endocrine system  sends out hormones. These hormones tell your blood vessels to constrict or relax, which affects your blood pressure. Hormones from your thyroid gland can also tell your heart to beat faster or slower. ANATOMY Where is your heart located? Your heart is located in the front of your chest. It sits slightly behind and to the left of your sternum (breastbone). Your ribcage protects your hea...