Functions of the Respiratory System Include

Multiple Choice

Functions of the respiratory system include

A) protecting respiratory surfaces from dehydration and temperature changes.
B) producing leukocytes needed to defend against invading pathogens.
C) generating neurotransmitters essential to the neural control of respiration.
D) providing erythrocytes, especially during times of increased oxygen demand.
E) melanin synthesis and utilization to shield alveoli from environmental hazards.