The most important factor affecting airway resistance is
A: air velocity
B: airflow
C: respiratory tract length
D: caliber of respiratory tract
A: air velocity
B: airflow
C: respiratory tract length
D: caliber of respiratory tract
举一反三
- Scabies is transmitted through（ ） A: Respiratory tract B: Oral ingestion C: Placenta D: Contact
- Cold is a common acute viral infectious disease occurring in upper respiratory tract, whereas most patients with COVID-19 show symptoms in the lung.
- Which is not the indication of tracheotomy ( ) A: Diphtheria B: Laryngemphraxis C: Respiratory tract burn D: Low paraplegia
- The upper respiratory tract consists of? nose, pharynx, and larynx|nose and pharynx|nose, pharynx, larynx, and trachea|nose
- Oral furantoin can be used for the treatment of ( ). A: Intestinal infection B: Urinary tract infection, quickly eliminated from the body C: Urinary tract infection, slow elimination from the body D: Respiratory infection