NLN PAX-RN Test Questions & Answers
2024/2025
Larynx - ANSWERSVoice box.
Trachea - ANSWERSWindpipe
Bronchi - ANSWERSTwo branches off the trachea.
Bronchioles - ANSWERSThinner tubes branching off bronchioles in lungs.
Alveolus (alveoli) - ANSWERSAirs sacs at the end of each bronchioles.
Thin permeable air sacs.
Functional unit of the lungs.
Alveolar membrane - ANSWERSPoint where pulmonary capillaries and alveoli come in contact and the
exchange of oxygen and Co2 takes place.
Breathing - ANSWERSProcess by which air is moved into and out of the lungs.
Diaphragm - ANSWERSSheet of muscle lining the bottom of the thoracic cavity.
Raises and lowers pressure in chest cavity along with muscles of the rib cage.
Cellular respiration - ANSWERSProcess by which we get energy from food we eat.
Aerobic respiration - ANSWERSOccurs when oxygen is present.
Opposite of photosynthesis.
Efficient process-begins in cytoplasm, ends in mitochondria.
2024/2025
Larynx - ANSWERSVoice box.
Trachea - ANSWERSWindpipe
Bronchi - ANSWERSTwo branches off the trachea.
Bronchioles - ANSWERSThinner tubes branching off bronchioles in lungs.
Alveolus (alveoli) - ANSWERSAirs sacs at the end of each bronchioles.
Thin permeable air sacs.
Functional unit of the lungs.
Alveolar membrane - ANSWERSPoint where pulmonary capillaries and alveoli come in contact and the
exchange of oxygen and Co2 takes place.
Breathing - ANSWERSProcess by which air is moved into and out of the lungs.
Diaphragm - ANSWERSSheet of muscle lining the bottom of the thoracic cavity.
Raises and lowers pressure in chest cavity along with muscles of the rib cage.
Cellular respiration - ANSWERSProcess by which we get energy from food we eat.
Aerobic respiration - ANSWERSOccurs when oxygen is present.
Opposite of photosynthesis.
Efficient process-begins in cytoplasm, ends in mitochondria.
