Body __ are imaginary, rectangular surfaces that cut through the body, dividing it into different regions.

Body planes, look at this website for more info

https://www.google.co.uk/url?q=https://www.boundless.com/physiology/textbooks/boundless-anatomy-and-physiology-textbook/introduction-to-anatomy-and-physiology-1/mapping-the-body-33/body-planes-and-sections-289-1344/&sa=U&ved=0ahUKEwjQs8XR9YrUAhXHKcAKHapnD58QFggUMAI&usg=AFQjCNH0hXmL_w50JNtIeUTU7BDPw10XDg

20 times a minute is usually the average respritory rate of an adult. additionally the patient is breathing on his own, is clearly maintaining his airway, and is intaking a sufficient amount of air. you shouldn't use a bag valve mask, cpap, or other form of positive pressure ventilation, unless the patient has lost control of his airway, and is not breathing (apneic) or has rapid breathing or slow and shallow respirations. this patient would most likely and should be put on an non-rebreather mask or nrb attached to 100% high flow oxygen at 15 l/min. don't use a nasal cannula, as the amount of oxygen it provides is limited with a rate of 6 l/min.