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Which of the following describes a correct order of structures in the respiratory passageway?
 A.pharynx, trachea, larynx, bronchi, bronchioles
 B.larynx, pharynx, trachea, bronchioles, bronchi
 C.trachea, pharynx, larynx, bronchi, bronchioles
 D.pharynx, larynx, trachea, bronchi, bronchioles

The C-shaped rings that provide support for the wall of the trachea are made out of
 A.reticular connective tissue.
 B.hyaline cartilage.
 C.fibrocartilage.
 D.elastic cartilage.

The exchange of gases occurs in the
 A.trachea.
 B.terminal bronchioles.
 C.primary bronchus.
 D.alveoli.

Carbon monoxide:
 A.binds weakly to amino acids within hemoglobin and binds to the heme group of hemoglobin
 B.binds to the heme group of hemoglobin
 C.binds to the heme group of hemoglobin and binds more strongly to the heme than oxygen does
 D.binds weakly to amino acids within hemoglobin

Which of the following is not a function of the respiratory system?
 A.transport of nutrients to tissue.
 B.ventilation of lungs.
 C.production of sound.
 D.gas exchange between lungs and blood.

Which of the following does NOT belong to the conducting zone of the respiratory system?
 A.bronchi
 B.pharynx
 C.respiratory bronchioles
 D.terminal bronchioles

Which of the following is called the Adam's apple?
 A.thyroid cartilage
 B.arytenoid cartilages
 C.cricoid cartilage
 D.epiglottis
The hormone that induces a feeling of satiety (full to satisfaction) is
 A.pepsin.
 B.cholecystokinin.
 C.gastrin.
 D.secretin.
Substances absorbed into the blood in the small intestine are carried to the liver by the
 A.hepatic portal vein.
 B.common hepatic duct.
 C.hepatic artery.
 D.hepatic vein.
Which of the following is the correct order of movement of substances through the large intestine?
 A.cecum, ascending colon, transverse colon, descending colon, sigmoid colon, rectum.
 B.cecum, descending colon, transverse colon, ascending colon, sigmoid colon, rectum.
 C.cecum, ascending colon, transverse colon, sigmoid colon, descending colon, rectum.
 D.transverse colon, descending colon, ascending colon, sigmoid colon, cecum, rectum.