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Surface Anatomy of Lungs PowerPoint Presentation

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Description : Anatomy

Tags : Anatomy,Anatomy of Lungs,Lungs

Published on : Apr 11, 2021 | Views : 5145 | Downloads : 6

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Slide 1-

SURFACE ANATOMY OF LUNGS
Slide 2-

SURFACE ANATOMY OF THORAX
Slide 3-

RIGHT PLEURAL MARKINGS Mark the following points 1.Rightsternoclavicular joint 2.Midpoint of sternal angle 3.Midpoint of xiphistrnal joint This forms anterior margin of right pleural sac(costo mediastinal reflecton) #An arched line convex upwards lying above medial one third of clavicle ,the summit 2.5cm above clavicle marks the dome of pleura
Slide 4-

RIGHT PLEURAL MARKINGS #A Curved line drawn around anterior , lateral`and posterior aspect of thorax , convex downwards passing through 8th rib in mid clavicular line,10th rib in mid axillary line and a point 2cms right of midline at T12 level ark the inferior margin of pleural sac # A line drawn on back 2 cms from midline between C7 and T12 vertebrae marks the posterior margin
Slide 5-

LUNGS , PLEURA AND FISSURES(ANTERIOR VIEW)
Slide 6-

LEFT PLEURAL MARKINGS Dome of pleura , posterior and inferior margin are represented by the same lines as those on the right side. ANTERIOR MARGIN #MARK 1.Lt sternoc-lavicular joint 2.Midpoint of sternal angle 3.Mid sternum at the level of 4th costal cartilage From mid sternum draw a line downwards and laterally to reach lateral margin of sternum and toward 6th costal cartilage 3cms from midline.
Slide 7-

BORDERS OF LUNGS RIGHT #Apex of lungs –cervical pleura #Anterior border of Rt lung-costomediastinal reflection of pleura #Inferior border-curved line lying above the costo diaphragmatic reflection of pleura(6th rib in midclavicular line, 8th rib in midaxillary line. #Posterior-T10 spine(2cms lateral to midline)
Slide 8-

LEFT #Upper part of anterior border upto 4 th costal cartilage follows the pleura #Below , due to the deep cardiac notch the border passes from midline sharply to the left and downwards so that at the level of 5th costal cartilage , it is about 3.5cm lateral to sternal margin and then curves downwards and medially to reach 6 th costal cartilage at about 4 cms from medial plane. #Inferior border and posterior border same as that of right lung
Slide 9-

POSTERIOR ASPECT OF TRUNK
Slide 10-

RIGHT LATERAL ASPECT OF TRUNK
Slide 11-

OBLIQUE FISSURE #During the life fissure begins posteriorly on the posterior border of lung 2cms from midline at the level of T5 #It passes anteroinferiorly in a spiral course to meet the inferior margin at 6th costo chondral junction. #After death due to the collapse , and diaphragm elevation upper end of oblique fissure-T3 in a cadaver.
Slide 12-

HORIZONTAL FISSURE #Right lung-Anterior margin at the level of 4th costal cartilage passing backwards to meet oblique fissure in mid axillary line plane
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BRONCHOPULMONARY SEGMENTS #The multitude of small airways within the lung parenchyma has a very large combined surface area-over 300 cmsq in the 3rd generation respiratory bronchioles. #Gas transport occurs largley by diffusion in the final segments.
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Slide 15-

Each lobe is composed by two or more broncho-pulmonary segments that are supplied by main branches of each lobar bronchus
Slide 16-

Bronchopulmonary segments are the well defined anatomical ,functional and surgical units of lung Charecteristics features Pyramidal in shape,apex directed towards hilum,base towards surface of lungs It is aerated by segmental bronchus Each segment has its own artery,segmental branch of pulmonary artery
Slide 17-

Each segmnt has its own lymphatic drainage and autonomic supply CLINICAL CORRELATION Segmental resection of lungs-consevative lung surgery
Slide 18-

BRONCHO PULMONARY SEGMENTS RIGHT #Upper Lobe 1.Anterior 2.Posterior 3.Apical #Middle lobe 1.Lateral 2.Medial #Lower Lobe 1.Apical 2.Posterior basal 3.Lateral basal 4.Anterior basal 5.Medial basal LEFT #Upper lobe 1.Anterior 2.Apical 3.Posterior 4.Lingular #Lower lobe 1.Apical 2.Posterior basal 3.Lateral basal 4.Anterior basal