Where is the heart located? In the thoracic cavity.on the far right side of the ribcage In the thoracic cavity.on the far left side of the ribcage In the thoracic cavity.just in front of the breastbone between the lungs In the thoracic cavity.just behind the breastbone between the lungs Question 55 Which of the following is NOT true regarding arteries? Carry blood away from the heart Strong, thick elastic walls Carry blood back to the heart Carry oxygen-rich blood to tissues