Where sinoatrial node is located

Which of the following is the definition of ventilation as it relates to the respiratory system?

An _ exposure is a repeated or prolonged exposure(over months or years) that may bring about slowly developing symptoms.

During the past few weeks or months, have you noticed any exercises that have become too easy for you? do you think you need to increase the intensity in any of the three exercise areas in your workouts? evaluate your exercise progress in the three exercise areas (cardiovascular, resistance, and flexibility) and list what modifications, if any, you may need to make in your exercise routine.