Respiration is achieved through all of the following EXCEPT the __________

You have been summoned to a field where a 32-year-old male patient has been struck by lightning. Emergency Medical Responders are with the patient, providing manual spine motion restriction. Once you arrive at the patient's side, what should you do first?

A) Apply a cervical collar B) Perform a secondary assessment C) Assess the airway and breathing D) Place the patient on the stretcher

The part of the optical microscope that concentrates the light being directed through the sample is the ________.

A. stage B. focus control C. iris D. objective E. condenser