Respiratory system

• Nasal cavity- olfactory receptors are located in the muscosa on the superior surface
• Respiratory system- overseas gas exchange (oxygen and carbo dioxide)between the blood and external environment
• Pharynx- muscular passage from nasal cavity to larynx
• Larynx- routes air and food in proper channel
• Nasopharynx- Superior region behind nasal cavity
• Oropharynx- Middle region behind nasal cavity
• Laryngopharynx- Inferior region attached to larynx
• Vocal cords- Vibrate with expelled air to create sound
• Glottis- Opening between vocal cords
• Trachea- Connects larynx with bronchi
• Lungs- occupy most of the thorocic cavity
• Bronchioles- Smallest branches of the bronchi
• Primary bronchi- Formed by division of the trachea
• Alveoli- Structure of alveodik
• Gas exchange- Gas crosses the repiratory membrane by differion
• Pulmonary ventilation- Moving air in and out of the lungs
• External respiratory- Gas exchange between pulmonary
• Respiratory gas transport- Transport to oxygen and carbon dioxide gas charge
• Internal respiratory- Gas exchange between blood and tissue cell in systemic capillaries
• Inspiration- Diaphragm and intercostal muscles contract
• Expiration- air leaving lungs
• Exhalation- Largerly a passive process whi depends on natural lung elasticity
• Bronchial sounds- Produced by ait rushing through trachea and bronchi
• Residual volume- Air remaining in lung after expiration
• Asthma- Chronic inflamed hypersensitive brochiols passages
• Cystic fibrosis- Oversecrestion of thick mocus clogs the respiratory system
• Thyroid cartilage- Largest hyaline cartilage
• Epiglottis- Superior opening of the larynx