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Describe gas exchange across the alveolar-capillary membrane {Ans: Oxygen diffuses capillary membrane from alveoli --> oxygen combines with hgb on RBC --> CO2 is released from hgb and diffuses across capillary membrane to alveoli}2 receptors that are triggered with adrenergic stimulation {Ans: alpha and beta receptors}location of autonomic nervous system receptor sites: alpha and beta receptors {Ans: 1. a receptors are located in the peripheral arterioles and bronchioles, no alpha receptors in the heart 2. b1 receptors are located in heart muscle 3. b2 receptors are located in blood vessels to the skeletal muscle, vital organs, and bronchioles}Define Osmosis {Ans: Movement of Fluid across semi-permeable membrane from lesser solute to greater solute concentration. Dilutes concentrations back to homeostasis}Changes in Atrial kick affect Cardiac Output {Ans: if atrial kick is lost, approximately 20% less blood is supplied to ventricles. Atrial Kick is lost with a-fib/flutter and SVT}indication for use of oral vs nasal pharyngeal airway {Ans: oropharyngeal for no gag reflex, nasopharyngeal indicated with gag reflex unconscious patients.}