Changes

==Respiratory System==

==Respiratory System==

Air is [[Ventilation - Anatomy & Physiology|inhaled]] and passes through the upper respiratory tract via the nares, [[Nasal cavity - Anatomy & Physiology|nasal cavity]], [[Nasopharynx - Anatomy & Physiology|nasopharynx]], [[Larynx - Anatomy & Physiology|larynx]], [[Trachea - Anatomy & Physiology|trachea]]) where it is  heated and moistened. It then passes to the lower respiratory tract ([[Bronchi and bronchioles - Anatomy & Physiology|bronchi, bronchioles]], [[Lungs - Anatomy & Physiology|alveoli]]) where oxygen diffuses across the alveolar wall and into the blood, forming oxyhaemoglobin.

Air is [[Ventilation - Anatomy & Physiology|inhaled]] and passes through the upper respiratory tract via the nares, [[Nasal cavity - Anatomy & Physiology|nasal cavity]],[[Pharynx - Anatomy & Physiology|Pharynx]], [[Larynx - Anatomy & Physiology|larynx]], [[Trachea - Anatomy & Physiology|trachea]]) where it is  heated and moistened. It then passes to the lower respiratory tract ([[Bronchi and bronchioles - Anatomy & Physiology|bronchi, bronchioles]], [[Lungs - Anatomy & Physiology|alveoli]]) where oxygen diffuses across the alveolar wall and into the blood, forming oxyhaemoglobin.

 

Associated structures within the upper respiratory tract include the [[Paranasal sinuses - Anatomy & Physiology|paranasal sinuses]] and the [[Guttural pouches - Anatomy & Physiology|guttural pouches]]

 

[[Paranasal sinuses - Anatomy & Physiology|Paranasal Sinuses]]

 

 

[[Guttural pouches - Anatomy & Physiology|Guttural Pouches]]