What is the role of mucus in the nasal cavity?
A) increase the air turbulence in the nasal cavity
B) separate the oral cavity from the nasal cavity
C) lighten the skull
D) act as a resonance chamber for speech
E) trap incoming bacteria and other foreign debris
E
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Which of these bones does not contribute to the region known as the pterion?
A. Frontal B. Sphenoid C. Occipital D. Parietal E. Temporal
A small, low-caliber bullet has entered your chest at an angle, through the right lung and then the heart. It is now lodged in heart muscle. The surgeon will have to open some closed cavities of the body and enter those spaces to remove the bullet. What is the order of the cavities and the correct cavities that the surgeon will have to open (starting from the outside)?
A) the pleural cavity, the thoracic cavity, the pericardial cavity B) the thoracic cavity, the pleural cavity, the mediastinum, the pericardial cavity C) the thoracic cavity, one pleural cavity, other pleural cavity, pericardial cavity D) the abdominal cavity, the pleural cavity, the pericardial cavity E) the thoracic cavity, the pleural cavity, the pericardial cavity, the mediastinum
Glial cells make up over 80% of the human brain in both number of total cells and volume occupied by the nervous system
Indicate whether the statement is true or false