A & P II
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Respiration involves both
the respiratory and the circulatory systems
What are the 4 processes that supply the body O
and dispose of CO
Transport of O
in the blood
Pulmonary ventilation is
breathing, movement of air in and out of the lungs.
External respiration is
exchange between the lungs and the blood
What is internal respiration?
exchange between systemic blood vessels and tissues.
What are the 9 major organs of the respiratory system?
Nose, nasal cavity, and paranasal sinuses
Bronchi and their branches
Lungs and alveoli
The site of gas exchange is called the
The respiratory zone includes
Microscopic structures: respiratory bronchioles, alveolar ducts, and alveoli
What are the conduits to gas exchange sites called?
What are the functions of the nose?
Provides an airway for respiration
Moistens and warms the entering air
Filters and cleans inspired air
Serves as a resonating chamber for speech
Houses olfactory receptors
The nasal cavity superior to the nostrils is called_______________ it has _________________
Vibrissae (nose hairs) that filter coarse particles from inspired air.
What lines the superior nasal cavity and contains smell receptors?
Respiratory mucosa contain
Mucous and serous secretions
Cilia in the nasal cavity move
contaminated mucus posteriorly to throat
Mucous and serous secretions contain
lysozyme and defensins
A & P II