Select your answer:
Topics:
Human Eye and Colourful World Pathophysiology_Endocrine Biotechnology and Genetic Engineering Health and Wellness Regulation of Urine Formation Nail Disorders and Diseases Respiration Anatomy and Physiology Psychology Vocabulary Bariatric Surgery and Diabetes Living Organisms & Animal Behaviors Joints and Range of Motion Fish Health Management Bio Cells Tissues HormonesOther quiz:
Heart › ViewHeart sound __________ is thought to result from the transition from expansion of the empty ventricles to their sudden filling with blood.
A. S1
B. S2
C. S3
D. S4
E. S0
Respiratory System › View
Where in the respiratory tract does the exchange of oxygen and carbon dioxide take place?
A. Larynx
B. Bronchi
C. Trachea
D. Alveoli