Nasal cavity — function?
Warms, humidifies, filters inhaled air.
Nasal septum — role?
Divides nasal cavity into two nostrils.
Nasopharynx — location?
Behind the nasal cavity, part of pharynx.
Nose — structures?
Contains nostrils, conchae, olfactory receptors.
Oropharynx — role?
Passageway for air and food behind mouth.
Palate — parts?
Hard (bony) and soft (muscular) palate.
Trachea — structure?
Windpipe supported by cartilage rings.
Bronchi — division?
Branch from trachea into each lung.
Bronchioles — size?
Smaller airways leading to alveoli.
Conducting zone — structures?
Trachea, bronchi, bronchioles; no gas exchange.
Lungs — function?
Gas exchange organ with alveoli.
Oxyhemoglobin — role?
Transports oxygen in blood.
Bicarbonate ion — formation?
Formed in RBCs during gas exchange.
External respiration — process?
Gas exchange between alveoli and blood.
Lung volumes — example?
Residual volume, tidal volume, vital capacity.
Respiratory mechanics — muscles?
Diaphragm, external intercostals.
Test your knowledge with 8 questions on Respiratory Anatomy and Function.
1. How does the anatomical connection of the nasopharynx influence respiratory airflow?
2. What type of cartilage primarily composes the supportive structures of the larynx, including the thyroid cartilage and epiglottis?
Review the complete course in the revision sheet for Respiratory Anatomy and Function.
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