4.Intercostal space of thorax anatomy human

this is the ppt about the intercostal space of thorax

1. Department of Anatomy, UMTY 124 June 2022

2. Department of Anatomy, UMTY 2
Anintercostalspaceliesbetweentwoadjacentribs.
Extent:
Fromthemarginofthesternum
tosideofthethoracicvertebra.
24 June 2022
Intercostal Space

3. Department of Anatomy, UMTY 324 June 2022
Contentsofintercostalspace
•3intercostalmuscles
•intercostalvesselsand
•intercostalnerve
Intercostal Space

4. Department of Anatomy, UMTY 424 June 2022
Extendsfrom the tubercle of the rib
to the costo-chondral junction
Anteriorly, the muscle is replaced by
anterior intercostalmembrane
Fiber direction:
forwards and downwards
Action:
Inspiratory muscle
External intercostal muscle
Intercostal Muscles

5. Department of Anatomy, UMTY 524 June 2022
Extendsfrom the sternal margin
to the angle of the rib
Posteriorly, the muscle is replaced by
posteriorintercostal membrane
Fiber direction:
Backwards and downwards
Action:
Expiratory muscle
Internal intercostal muscle
Intercostal Muscles

6. Department of Anatomy, UMTY 624 June 2022THORAX
EXTERNAL
INTERCOSTAL
INTERNAL INTERCOSTAL
Ant.intercosmembr.
Post.intercos.membr.
Intercostal Muscles

7. Department of Anatomy, UMTY 7
-intercostal vein, V
-intercostal artery, A
-intercostal nerve,N
External
Intercostal
Muscle
Internal
Intercostal
Muscle
Innermost
Intercostal
Muscle
24 June 2022
Extendsfromtheinnerlipofthecostalgroove
totheuppermarginoftherib
Fiber direction:
Backwards and downwards
Action:
Expiratory muscle
Intercostal vessel and nerve lie in the costal groove, between the internal and innermost intercostal muscle.
Innermost intercostal muscle
Intercostal Muscles

8. Department of Anatomy, UMTY 824 June 2022
Each intercostal space contains one posterior intercostal artery & two anterior intercostal arteries.
The posterior intercostal artery of first two spaces arise from superior intercostal artery, lower nine
spaces are branches of the descending thoracic aorta.
Intercostal Artery

9. Department of Anatomy, UMTY 924 June 2022
The anterior intercostal artery of upper six spaces are branches of internal thoracic
artery, while lower three spaces are branches of musculo-phrenic artery.
Intercostal Artery

10. Department of Anatomy, UMTY 1024 June 2022
Azygous
vein
Hemi-azygous vein
Accessory
Hemi-azygous vein
Intercostal vein
Drain into the azygos on the right side and
into the hemiazygos (or accessory hemiazygos) on the left side.
Intercostal Vein

11. Department of Anatomy, UMTY 1124 June 2022
Itistheventralramiofathoracicspinalnerve.
Itsuppliestheintercostalmusclesandskinoverlyingthetypicalintercostalspace.
Intercostal Nerve

12. Department of Anatomy, UMTY 1224 June 2022
1.In aspiration, the needle is inserted close to the upper border of rib in order to avoid damage
to the intercostal vessels.
2. Intercostal nerve block is given close to the angle of the rib where the nerve is superficial.
Applied Anatomy

13. Department of Anatomy, UMTY 1324 June 2022
NetterAtlasofAnatomy
NetterFH.(2011)Atlasofhumananatomy.5
th
Ed.Philadelphia,Pennsylvanian,USA.
Grant’sAtlasofAnatomy
Agur,A.M.R.,&Dalley,A.F.,II.(2017).Grant'satlasofanatomy(Edition14.).Philadelphia:Wolters
Kluwer.
Website
https://pt.slideshare.net/rongon28us/ant-thoracic-wall-and-intercostal-space/37
https://aci.health.nsw.gov.au/networks/eci/clinical/clinical-tools/respiratory/pleural-effusion/pleural-tap-
thoracentesis
Figure-references

14. Department of Anatomy, UMTY 14
Handoutfor2
nd
yearB.Med.Tech,Anatomy
Gray’sAnatomyforStudents
Gray(2009)Gray’sanatomyforstudents.2
nd
Ed.ChurchillLivingstoneElsevierNetter’sAtlas
MooreClinicalAnatomy
MooreKLandDalleyAR.(1999)ClinicallyOrientedAnatomy.4thEd.LippincottWilliams&Wilkins,
Toronto.
NetterAtlasofAnatomy
NetterFH.(2011)Atlasofhumananatomy.5
th
Ed.Philadelphia,Pennsylvanian,USA.
ClinicalAnatomy
EllisH.(2006)ClinicalAnatomy.11
th
Ed.Massachusetts:BlackwarePublishing
24 June 2022
Text-references and More Readings

15. Department of Anatomy, UMTY 1524 June 2022