Slides of Anatomy

Please note : These slides are Dr. Maher Hadidi’sslides of spring 2016 and were edited by the

Premed Academic Team to fit the slides of spring 2019.

Spring 2019

Thorax cavity

Spring 2019 Dr. Maher Hadidi, University of Jordan

Thoracic cavity Extends between the thoracic

inlet and the thoracic outlet.

Enclosed by the thoracic wall.

Thoracic inlet At root of the neck.

Thoracic outlet close by thediaphragm.

Spring 2019 2Dr. Maher Hadidi, University of Jordan

Thoracic cavity

Borders:

Ant. Sternum.

Post. 12 vertebrae.

Lateral curving ribs, costal cartilages.

Their coverings and linings.

Spring 2019 3Dr. Maher Hadidi, University of Jordan

Thoracic cavityDivided into 3 major compartments: Two Peripheral pleural sacs, right and left, each enclosing a lung.

One Central, Mediastinum.

Spring 2019 4Dr. Maher Hadidi, University of JordanCross section in the thorax

Spring 2019 Dr. Maher Hadidi, University of Jordan 5

Pleura Thin continuous serous membrane

that covers the lungs and lines thoracic wall.

Parts: Visceral, cover the lungs. Parietal, line wall of thoracic cavity.

Parts: 1-4

Pleural cavity:• Potential space between parietal and

visceral pleura.

• That contains pleural fluid that act to lubricate and facilitate breathing.

• Come to be true in diseases.

Spring 20196

Dr. Maher Hadidi, University of Jordan

Spring 2019 7Dr. Maher Hadidi, University of Jordan

Plural effusion

Spring 2019 8Dr. Maher Hadidi, University of Jordan

Trachea About 11.25 cm long.

Pass within neck and thorax.

Extends from C6 to sternal angle

(disc between T4/T5).

Form of about 20 C-shaped

cartilaginous rings.

Defected posterior and replaced by

Trachealis smooth muscle.

Lined by respiratory epithelium.

Divides into 2 bronchi.

Spring 2019 9Dr. Maher Hadidi, University of Jordan

Right 1ry bronchus Shorter

Wider

Vertical than left.

About 1 inch long.

Therefore, inhaled foreign bodies

that enter trachea are commonly

trapped in it.

Spring 2019 10Dr. Maher Hadidi, University of Jordan

Left primary bronchus

Narrower

Longer

More horizontal.

About 2 inch long.

Tracheal rings

Larynx

Right bronchus Left bronchus

Lungs

Conical-shaped spongy organs.

Lie on both sides of mediastinum.

Attach to mediastinum by theirroot.

Suspended free within itsown pleural cavity.

Spring 2019 11Dr. Maher Hadidi, University of Jordan

LungsParts, each lung has: Apex (at root of the neck). Base (concave) on diaphragm. 3 borders:

• Anterior (narrow & overlap the heart).

• Posterior (rounded, on both sidesof the vertebral column).

• Inferior (narrow).

3 surfaces:• Diaphragmatic (concave), rest on

the diaphragm (inferior) .• Costal wide and convex (Lateral) .• Mediastinal, related to mediastinal

structures (Medial) .

Spring 2019 12Dr. Maher Hadidi, University of Jordan

Left Lung

Characteristics:

Has one oblique fissure.

Has 2 lobes:

• Superior lobe.

• Inferior lobe.

Cardiac notch at its anterior border, notched by the heart.

Spring 2019 13Dr. Maher Hadidi, University of Jordan

Left Lung

Characteristics:

Since it develop in a smaller space.It is:

Longer

Narrower

Lighter

Less functional than the right.

Related to the left high pressurearterial side of the heart.

Spring 2019 14Dr. Maher Hadidi, University of Jordan

Right Lung

Characteristics:

Has 2 fissures:

• Oblique.

• Horizontal.

Has 3 lobes:

• Superior lobe.

• Middle lobe.

• Inferior lobe.

Spring 2019 15Dr. Maher Hadidi, University of Jordan

Right LungCharacteristics:

Since it develop in a larger space.It is:

Wider.

Shorter.

Heavier.

More functional than the left.

Related to the right low pressure venous side of the heart.

Spring 2019 16Dr. Maher Hadidi, University of Jordan

Root of the Lung Connect lung to the mediastinum. Surrounded by pleural sleeve.

Contents:• 1 Main bronchus.• 1 Pulmonary artery.• 2 pulmonary veins,

Superior Inferior

• Nerves.• lymphatics.

Arterial supply:The lung tissue itself, supplies by bronchial arteries from thoracicaorta.

Spring 2019 17Dr. Maher Hadidi, University of Jordan