TRUE OR FALSE 52) Filtering, warming, and humidification of the inhaled air begi

Question

TRUE OR FALSE

52) Filtering, warming, and humidification of the inhaled air begins at the entrance to the lower respiratory system and continues throughout the rest of the conducting system.

53) The maxillae, nasal and frontal bones, ethmoid, and sphenoid form the medial and inferior walls of the nasal cavity.

54) The cricoid cartilage is a complete ring whose posterior portion is greatly expanded, providing support in the absence of the thyroid cartilage.

55) The lining of the trachea consists of respiratory epithelium overlying a layer of loose connective tissue called the lamina propria, which separates the respiratory epithelium from underlying cartilages.

56) The right primary bronchus has a larger diameter than the left, and it descends toward the lung at a steeper angle.

57) Because they lie within the lungs, the branches of the primary bronchi are collectively called the interpulmonary bronchi.

58) Each pleural cavity actually represents a potential space rather than an open chamber, for the parietal and visceral layers are usually in close contact.

59) The most important muscles involved in respiratory movements are the diaphragm and the external and internal intercostal muscles.

60) At birth, the newborn infant takes a first breath through powerful contractions of the diaphragmatic and serratus anterior muscles.

61) The dorsal respiratory group of the respiratory rhythmicity center functions only during forced respiration.

62) Some degree of emphysema is normally found in individuals aged 50-70.

Explanation / Answer

52) true

53)false. Maxilla, Palatine and ethmoid bones are involved

54)true

55)true

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