《系统解剖学 Systematic Anatomy》课程教学课件（PPT英文讲稿）Part II Splanchnology_Chapter 2 Respiratory System_2.3 Respiratory System

Splanchnology（Ⅲ）---RespiratorySystem

- Respiratory System Splanchnology ( Ⅲ )

I.Respiratorytract:nosepharynxUpper r. t.larynxtracheaLower r. t.bronchi &their branchesI.Respiratory organ:lung

Lower r. t. Ⅰ. Respiratory tract: Upper r. t. nose pharynx larynx trachea bronchi & their branches Ⅱ. Respiratory organ: lung

Section1NoseI.External noseⅡ.Nasal cavityⅢ.Paranasalsinuses心福

Section 1 Nose Ⅰ. External nose Ⅱ. Nasal cavity Ⅲ. Paranasal sinuses

I.External noseRootBackApexAlae nasi

Root Back Apex Alae nasi Ⅰ. External nose

.Nasal cavityLimen nasi（I）Nasalvestibule（）Propernasalcavity: Roof: nasal & ethmoid bone·Floor: palate·Medial wall:nasal septumEthmoid B.:Lateral wall: nasal conchae & meatuses

Ⅱ. Nasal cavity （Ⅰ）Nasal vestibule Limen nasi （Ⅱ）Proper nasal cavity • Roof: nasal & ethmoid bone • Floor: palate • Medial wall: nasal septum • Lateral wall: nasal conchae & meatuses Ethmoid B

The lateral wall of the nasal cavity·Nasal conchae ---- superior, middle, inferior· Nasal meatuses --- superior, middle, inferiorSphenoemoidalrecessMiddlenasalconchaeInferiornasalmeatus

• Nasal conchae - superior, middle, inferior • Nasal meatuses - superior, middle, inferior The lateral wall of the nasal cavity: Middle nasal conchae Inferior nasal meatus Sphenoemoidal recess

The nasalmucousmembrane:1. Olfactory region:? Lining the upper portion of the nasal cavity·Olfactoryreceptors2. Respiratory region: the rest medial & lateral nasal wallOlfactoryregionSuperiornasalC

The nasal mucous membrane: 1. Olfactory region: 2. Respiratory region: the rest medial & lateral nasal wall • Lining the upper portion of the nasal cavity • Olfactory receptors Olfactory region Superior nasal C

Ⅲl.Paranasal sinuses the air spaces in the bones around the nasal cavityfrontal,maxillary,ethmoid&sphenoidal sinuses·all these sinuses open into the nasal cavity额实筛奕蝶奕上颌实

Ⅲ. Paranasal sinuses • the air spaces in the bones around the nasal cavity. • frontal, maxillary, ethmoid & sphenoidal sinuses. • all these sinuses open into the nasal cavity

Section2Pharynxacommonpassageforalimentary&respiratorysystemsNasopharynxOropharynxLaryngopharynx

Section 2 Pharynx Nasopharynx Oropharynx Laryngopharynx • a common passage for alimentary & respiratory systems

Section3Larynx·a part of respiratory passage & an organ of phonation. lies in front of the 4th, 5th, 6th cervical vertebrae:about 4.5 cm long:communicates with laryngopharynx posteriorlyextendstotracheadownwardsC4C6Trachea

Section 3 Larynx • a part of respiratory passage & an organ of phonation • lies in front of the 4 th, 5th, 6th cervical vertebrae • about 4.5 cm long • communicates with laryngopharynx posteriorly • extends to trachea downwards C4 Trachea C6