A. Breathing occurs B. Breathing and external respiration occurs C. Breathing, external respiration and cellular respiration occurs D. Only inspiration occurs
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A. Pharynx B. Larynx C. Glottis D. Epiglottis
A. Carry pure blood from heart to lungs B. Carry impure blood from lungs to heart C. Carry pure blood from lungs to heart D. Carry impure blood to lungs
A. Pulmonary vein B. Pulmonary artery C. Renal vein D. Hepatic portal vein
A. Ectoderm B. Mesoderm C. Endoderm D. None
A. Bronchi B. Trachea C. Bronchiole D. Respiratory bronchiole
A. Thoracic cavity B. Abdominal cavity C. Pleural cavity D. Pericardial cavity
A. Buccal cord B. Thyroid C. Complete tracheal cartilage D. Incomplete tracheal cartilage
A. Muscles B. Diaphragm C. Ribs D. Cartilaginous rings
A. Vital capacity B. Lung capacity C. Tidal volume D. Residual volume