Thorax

Lecture 3

Dr. Maher Hadidi, University of Jordan 1Spring 2019

Slides of Anatomy

Please Note: These slides were edited by the Premed Academic Team to fit the slides of

Spring 2019.

Dr. Maher Hadidi, University of Jordan 2Spring 2019

MediastinumCentral part between pleural sacs.

Borders: • Thoracic Inlet ->

Superior.• Diaphragm ->

Inferior.• Sternum -> Anterior.• All thoracic vertebrae

-> Posterior.

THIS IS AN EXTRA PICTURE FOR EXPLANATION.Dr. Maher Hadidi, University of Jordan 3Spring 2019

SubdivisionsAn imaginary line extending from sternal angle anterior to IVD between T4/T5 divides mediastinum into: 1. Superior mediastinum. 2. Inferior mediastinum,The pericardium and its contents divides inferior mediastinum into: a. Anterior mediastinum.b. Middle mediastinum. c. Posterior mediastinum.*each part has its borders and contents

Dr. Maher Hadidi, University of Jordan 4Spring 2019

Superior

MediastinumBorders:▪ Superior -> Thoracic inlet.▪ Inferior -> Imaginary line.▪ Anterior -> Manubrium. ▪ Posterior -> Upper 4

thoracic vertebrae. ▪ Contents: Next

Dr. Maher Hadidi, University of Jordan 5Spring 2019

CONTENTS: 1. Esophagus.2. Trachea.3. Arch of aorta and its

3 large branches.4. Superior vena cava.5. Right and left

brachiocephalic Vs.6. Thymus gland.7. Thoracic duct.8. Phrenic nerves.9. Vagus (X) nerves.10.Sympathetic trunks.

Dr. Maher Hadidi, University of Jordan

6Spring 2019

Dr. Maher Hadidi, University of Jordan

7Spring 2019

Contents of Superior Mediastinum

THIS IS AN

EXTRA PICTURE

FOR EXPLANA

TION.

Dr. Maher Hadidi, University of Jordan

8Spring 2019

Spring 2019 9

Dr. Maher Hadidi, University of Jordan

10Spring 2019

THIS IS AN

EXTRA PICTURE

FOR EXPLANA

TION.

Anterior Mediastinum Borders: • Superior -> Imaginary line.• Inferior -> Diaphragm.• Anterior -> Body of sternum. • Posterior -> Pericardium.

Contents: • Thymus gland.• Fat.

Dr. Maher Hadidi, University of Jordan 11Spring 2019

Dr. Maher Hadidi, University of Jordan12Spring 2019

Middle Mediastinum Borders: • Superior -> Imaginary

line.• Inferior -> Central

tendon of diaphragm. • Anterior -> Ant.

Mediastinum.• Posterior -> Middle 4

thoracic vertebrae. Contents: • Heart.• Pericardium. • Phrenic nerves.

Dr. Maher Hadidi, University of Jordan

13Spring 2019

Posterior Mediastinum Borders: • Superior -> Imaginary line.• Inferior -> Sloping part of

diaphragm. • Anterior -> Pericardium.• Posterior -> Lower 8

thoracic vertebrae. Contents: • Esophagus.• Thoracic aorta.• Azygous veins.• Thoracic duct.• Sympathetic trunks.

Dr. Maher Hadidi, University of Jordan14Spring 2019