Respiratory system m.gomaa

Respiratory System By Prof. Dr. Mona Mohammed Zoair Professor of Anatomy& Embryology Tanta Faculty Of Medicine

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Nasal Cavity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pharynx 2 3 4 5 6 1 -It is a tube 13 cm long -Extends from base of skull to 6 th cervical vertebra

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Larynx ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],epiglottis trachea

- Vocal folds are a pair of folds in laryngeal cavity leaving a fissure between them

Trachea ,[object Object],[object Object],[object Object],[object Object]

Bronchi 4.5 cm 2.5 cm 25 45 Foreign bodies enter Rt. Bronchus than Lt. bronchus -Wider -Shorter (2.5 cm) - Bifurcates before entering the lungs - Makes 25 degrees with vertical Rt. bronchus - Narrower -Longer (4.5 cm) - Bifurcates after entering the lungs - Makes 45 degrees with vertical Lt. bronchus

Pleura ,[object Object],[object Object],[object Object],[object Object],Parietal pleura Visceral pleura

Lungs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Broncho- pulmonary segments - It is the functional unit of the lung - Each unit is supplied by: 1- Segmental bronchus 2- Pulmonary artery 3- Pulmonary vein

Differences between right and left lungs - Short, wide with no cardiac notch - Has 3 lobe separated by 2 fissures - Contains 10 bronchopulmonary segments: 3 in upper lobe 2 in middle lobe 5 in lower lobe Right lung ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Left lung

Right lung (10): - 3 in upper lobe - 2 in middle lobe - 5 in lower lobe Left lung (8): - 2 in upper lobe - 2 in lingular lobe - 4 in lower lobe

Respiratory system m.gomaa

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Respiratory system m.gomaa