10 Anat 35 Respiratory - faculty.mtsac.edu
Transcript of 10 Anat 35 Respiratory - faculty.mtsac.edu
![Page 1: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/1.jpg)
RESPIRATORYSYSTEM
HumanAnatomyUnit3
![Page 2: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/2.jpg)
InAnatomyToday
![Page 3: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/3.jpg)
RespiratorySystem
• Nose• Nasalcavity• Nasalsinuses• Pharynx• Larynx• Trachea– Respiratorytree
• Lungs• Alveoli
![Page 4: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/4.jpg)
Functions• Surfaceareaforgasexchange• Ventilation• Protectionofrespiratorysurfaces– Dehydration– Environmentalchanges
• Immunefunctions• Vocalization• Aidsinregulationinternalparameters– Bloodvolume– Bloodpressure– BodyfluidpH
![Page 5: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/5.jpg)
RespiratoryEpithelium
• PCCE• Mucuscells• Linesrespiratorytract– Exceptpharynx– Exceptalveoli
![Page 6: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/6.jpg)
Nose
• Dorsum• Apex• Externalnares• Nasalseptum• Nasalvestibule• Nasalcavity
![Page 7: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/7.jpg)
ParanasalSinuses
• Frontal• Maxillary• Sphenoid• Ethmoidal
![Page 8: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/8.jpg)
NasalCavity
• Olfactoryepithelium• Internalnares(choanae)
• Nasalconcha– Superior– Middle– Inferior
• Hardpalate• Softpalate
![Page 9: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/9.jpg)
Pharynx
• Nasopharynx– posteriortonasalcavities
• Oropharynx– posteriortooralcavity
• Laryngopharynx– posterior/superiortothelarynx
![Page 10: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/10.jpg)
Larynx
ThyroidCartilage ArytenoidCartilageCricoidCartilage CorniculateCartilage
![Page 11: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/11.jpg)
VocalCords
• Glottis• Vocalfolds(vocalcords)– cordsoffibrousCT– vibrateduringspeech
• Truevocalcords• vestibularfolds(falsevocalcords)
• laryngealmusclesinvolvedinspeechandswallowing
![Page 12: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/12.jpg)
Vocalization
![Page 13: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/13.jpg)
TracheaandPrimaryBronchi• Windpipe• Trachialcartilages– hyalinecartilagerings– 16-20– Preventscollapseoftube
• Trachealismuscle– SmoothmusclesupportforC-rings
– ClosesthecircleofCringbyformingbridge
– Helpsadjustairflowtolungs
![Page 14: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/14.jpg)
HistologyoftheTrachea
![Page 15: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/15.jpg)
BronchialTree• 1o bronchi
– 1stbranchesofftrachea• 2o bronchi
– 1perlobeoflung• 3o bronchi
– branchoffsecondary• Bronchioles• Terminalbronchi• Respiratorybronchioles• Alveolarducts
![Page 16: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/16.jpg)
GradualChangesintheBronchialTree
• Decreaseindiameter• Decreaseinhyaline
cartilagesupport• Decreaseinsmooth
muscle• Gradualthinningof
epithelium• Inlargerbronchioles
– hyalinecartilageinplates– smoothmusclestill
present
![Page 17: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/17.jpg)
Lungs
• Apex• Base• Hilum• Rightlung– Superiorlobe– Middlelobe– Inferiorlobe
• Leftlung– Superiorlobe– Inferiorlobe– Cardiacnotch
![Page 18: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/18.jpg)
Alveoli• Number:~300,000,000• Size(individual)~60-100
micronsdiameter• Surfacearea
(collective)=1500squarefeet
• TypeIalveolarcells– simplesquamous epithelium
• TypeIIalveolarcells– greatalveolarcell– secretesurfactant
– DustCells– Alveolarmacrophage
![Page 19: 10 Anat 35 Respiratory - faculty.mtsac.edu](https://reader031.fdocuments.in/reader031/viewer/2022012201/61de1c509a4025567f166ea1/html5/thumbnails/19.jpg)
RespiratoryMembrane