MODIFYING RESTING HEART RATE

• WHAT IS THE HEART RATE CONTROLLED BY?

  medulla oblongata
• WHAT IS THE AVERAGE HEART RATE FOR A HUMAN ADULT?

  70 bpm
• HOW IS HEART RATE INCREASED?

  centre linked to SAN by sympathetic nervous system
• HOW IS THE HEART RATE DECREASED?

  centre linked to SAN by parasympathetic nervous system