Dr. Vohra Pleura is a Double layered membrane that invests both lungs, lies on either side of the mediastinum within the chest cavity Consists of: Parietal.

Slides:



Advertisements
Similar presentations
The Lung. The Lung Objectives Explain pleura. Define mediastinum. Discuss the anatomical structure of lungs. Enlist the relations of right and left.
Advertisements

Mediastinum Dr.Hassan Shaibah.
Trachea, Bronchi and Lungs
Thoracic cavity ( Mediastinum, Pleura) Mrs. Benish Islam Coordinator Lecturer Surgical (IPMS) KMU.
Lungs Dr. Sama ul Haque.
Thoracic cavity & contents
Structure of the thoracic wall
By Pros. Saeed Abuel Makarem
THE THORACIC REGION DESCRIPTION:
Ben Barnard Department of Radiology Kimberley Hospital
Thymus, Trachea & Oesophagus
Lungs Dr. Hassan Shaibah.
Larry M. Frolich, Human Anatomy, Respiratory Function Thoracic Cavity and Respiration Alveoli Respiratory Tree Lungs Diaphragm Intercostal Muscles.
HEART, ITS BLOOD SUPPLY & PERICARDIUM

ANATOMY OF PLEURA Dr. Mujahid Khan.
A-THE THORACIC WALL A-THE THORACIC WALL Boundaries Boundaries
Pleura and Lung By Prof. Saeed Abuel Makarem & Dr. Sanaa Al Sharawi.
و ما أوتيتم من العلم إلا قليلا
Pleura and Lungs.
THORACIC CAVITY MEDIASTINUM.
precentral gyrus postcentral gyrus
Mediastinum.
By Prof. Saeed Abuel Makarem
Dr. Ahmed Fathalla Ibrahim
The root of the neck Ehab ZAYYAN, MD, PhD.
Mediastinum.
Block 1 review. The thoracic wall consists of skeletal elements and muscles 1. Posteriorly, it is made up of twelve thoracic vertebrae and their intervening.
THORACIC CAVITY LUNGS and PLEURA Pleura Visceral pleura: Visceral pleura: Covers and follows indentations of lung. Parietal pleura: Parietal pleura:
PLEURA & LUNG Prof. Saeed Abuel Makarem.
بسم الله الرحمن الرحيم.
Ⅴ. Lung: Position: located in the thoracic cavity, both sides of the
The pleura is divided into two major types, based on location: 1. Parietal pleura 2. Visceral pleura Each pleural cavity is the potential space enclosed.
Gross anatomy of lungs/pleura and mediastinum-1
No Trachea 2. Bronchi 3. Lungs 4. Pleura 5. mediastinum.
بسم الله الرحمن الرحيم.
Thorax, Pleural Cavity.
 Two lungs are soft, spongy and elastic  In the child, they are pink, but with age, they become dark and mottled because of the inhalation of dust particles.
 Pleura & Lungs  Dr. Sarwar Hossain Khan Dr. Sarwar Hossain Khan.
Lungs Dr. Sama ul Haque Dr Rania Gabr. Objectives  Define mediastinum.  Discuss the anatomical structure of lungs.  Enlist the relations of right and.
By Prof. Saeed Abuel Makarem. Pericardium A fibro-serous sac Surrounds the heart & proximal part of its great vessels (Aorta, Pulmonary trunk, SVC, IVC,
Pericardium & Heart Dr. Zeenat Zaidi. Pericardium & Heart Dr. Zeenat Zaidi.
Lungs Features- Apex Base Three borders-ant, post & infer Two surfaces- costal & medial Medial surface – verterbral & mediastinal part.
Mediastinum. The mediastinum extends superiorly to the thoracic inlet and the root of the neck and inferiorly to the diaphragm. It extends anteriorly.
Dr. Nimir Dr. Safaa Dr. Rania. Objectives Identify the sternum and ribs with their characteristic features. Define intercostal space with its contents.
LUNG Bronchial Tree The right main bronchus The right main bronchus Wider Wider More vertical More vertical.
Dr. Mujahid Khan.  The trachea is a mobile cartilaginous and membranous tube  It begins in the neck as a continuation of the larynx at the lower border.
Pericardium and External features of Heart Dr. Sama ul Haque Dr Rania Gabr.
Iman Galal, MD Pulmonary Medicine Department Ain Shams University CLINICAL ANATOMY OF LUNG & PLEURA.
MEDIASTINUM EDITED BY: DR. NIVIN SHARAF MD LMCC. OBJECTIVES By the end of this lecture the students should be able to: Define mediastinum. Enlist the.
MEDIASTINUM. MEDIASTINUM DEFINITION OF MEDIASTINUM It is a partition between the right & left pleural sacs. It includes all the structures which lie.
the Cardiovascular System “Mediastinum”
the Cardiovascular System
Phrenic Nerve It arise from the neck from the anterior rami of the 3rd; 4th and 5th cervical nerves. The right phrenic nerve: It descends in the thorax.
ANATOMY OF THE THORAX Dr. Heba Al-Hussaini Assistant professor Department of Anatomy Faculty of Medicine 11/12/2012.
Structures of the Respiratory System (Continued)
Prof. Saeed Abuel Makarem
MEDIASTINUM.
The Respiratory System
THORACIC ANATOMY Extramediastinal
Mediastinum and pericardium
Mediastinum: Sternal angle angle Lower border of T4
Prepared by: Ali Jassim Alhashli, BSc
Structures of the Respiratory System (Continued)
CHEST CAVITY above the clavicle on each side
CHEST CAVITY above the clavicle on each side
Pleura & Lung.
Prof. Saeed Abuel Makarem
Prof. Ahmed Fathalla Ibrahim
MEDIASINUM Dr Jamila EL medany.
Presentation transcript:

Dr. Vohra

Pleura is a Double layered membrane that invests both lungs, lies on either side of the mediastinum within the chest cavity Consists of: Parietal layer Lines the thoracic wall, covers the thoracic surface of diaphragm & lateral aspect of mediastinum & extends into root of neck Visceral layer Completely covers the outer surfaces of the lungs & extends into the depth of the interlobar fissures

Pleural Cuff Two layers continuous with one another at the hilum (structure leaving & entering the lungs) of the lungs Pulmonary Ligament To allow the movement of pulmonary vessels & bronchi during respiration the pleural cuff hangs down as a loose fold

Pleural cavity/space Is a slitlike space between parietal & visceral layers of pleura Pleural fluid To allow the movement of pulmonary vessels & bronchi during respiration the pleural cuff hangs down as a loose fold

Is divided into: 1.Costal pleura Lines the inner surfaces of the ribs, costal cartilages, intercostal spaces, sides of the vertebral bodies & back of sternum 2.Diaphragmatic pleura Covers the thoracic surface of the diaphragm

3. Mediastinal pleura Covers & forms the lateral boundary of the mediastinum 4. Cervical pleura Also called as pleural cupula/dome Extends up into the neck, lining the undersurface of the suprapleural membrane. It reaches a level about 1 to 1 ½ inches above the medial 3 rd of clavicle

Each lung has a hilum on its medial aspect. The hilum of the lung is the point of entry for the root of the lung, which includes the bronchi, the pulmonary arteries, and the pulmonary veins. A pleural sleeve is created around these structures, where the pleura reflects, changing from visceral to parietal Inferior to the hilum on each lung is the pulmonary ligament, a continuation of that pleural reflection.

Costodiaphragmatic recesses In quite respiration the costal & diaphragmatic pleurae are in opposition to each other below the lower border Of the lung. In deep respiration the margins of the base of the lung descend, & both pleurae separate. This lower area is called as Costodiaphragmatic recesses

Costomediastinal recesses Situated along the anterior margin of the pleura. A slitlike space b/w the costal & mediastinal parietal pleura that are separated by a capillary layer of pleural fluid

Nerve supply Parietal Pleura is sensitive PTTP Costal pleura Intercostal nerves Mediastinal pleura Phrenic Diaphragmatic pleura Domes by phrenic & around the periphery by the lower 6 intercostal nerves Visceral Pleura The visceral pleura receives an autonomic supply from the pulmonary plexus it is sensitive to stretch but insensitive to PTTP

Soft, spongy & elastic structure in thoracic cavity. If the thoracic cavity were opened the lungs would immediately shrink to 1/3 rd or less in volume In child it is pink in but becomes darker with the age because of the inhalation of dust particles Lie on each side of the mediastinum Each lung is conical covered with visceral pleura & suspended free in its own pleural cavity

External Features Each lung has a blunt apex Concave base sits on diaphragm Surfaces Costal surface correspond to the chest Mediastinal surface In the middle is a hilum (a depression) in which the bronchi, vessels & nerves that forms the root enter & leave the lung Borders Anterior border of left lung is thin & overlaps the heart, it shows cardiac notch Posterior border is thick rounded & lies beside the vertebral column

Lobes & Fissures Right Lung Is slightly larger than the left & is divide by the oblique & horizontal fissure into 3 lobes the upper, middle & lower lobes

Left lung Divided by similar oblique fissure into 2 upper & lower lobes Cardiac notch

Blood supply The bronchi, CT of the lung & visceral pleura is supplied by bronchial arteries branches of thoracic aorta The bronchial vein drain into the azygos & hemiazygos veins Two pulmonary veins leave each lung root to empty into the left atrium

Nerve supply Pulmonary plexus composed of autonomic nerve fibers of sympathetic & parasympathetic (Vagus) both

Lymph Drainage Two sets are present Superficial Drains the surface of the lungs Deep Drains bronchial tree, pulmonary vessels & CT. Lymph drain into bronchomediastinal trunk & finally to thoracic duct, right lymphatic duct or brachiocephalic veins Lymph vessel re not present in alveolar walls