1. BREATHING 2. CURRICULUM CONTENT 8.3 Gas exchange Core • List the features of gas exchange surfaces in animals • Identify on diagrams and name the larynx,…
Cough and expectoration zhengcuixia Concept A protective reflex act clean excessive secretion & foreign material Initiated by miscellaneous stimuli or by voluntary exertion.…
Cough and expectoration zhengcuixia Concept A protective reflex act clean excessive secretion & foreign material Initiated by miscellaneous stimuli or by voluntary exertion.…