Lungs and Pleura Anatomy

Potential pleural spaces surrounding the diaphragm's upward curve inside the thoracic cavity.

The superior, blunt tip of the lung, reaching above the first rib.

Divided into three lobes (superior, middle, inferior) by oblique and horizontal fissures.

Subdivisions within a lung lobe, pyramid shaped and surgically resectable.

Bronchus that passes inferolaterally, positioning below the aorta and in front of the esophagus.

The bronchi that transport air, but do not participate in gas exchange.

The largest bronchi, branching from the trachea to the lungs.

Bronchioles with alveoli attached which begin the gas exchange portion of the respiratory system.

Tiny air sacs in the lungs where gas exchange occurs.

Blood vessels that supply nutrients to lung tissue.

Blood vessels that take oxygenated blood away from the lungs

Nerves controlling functions like bronchoconstriction (narrowing of the bronchi) and bronchodilation (widening of the bronchi) in the lung.

Networks of lymphatic vessels in the lungs that drain fluid.

The thoracic cavity is divided into the right and left pulmonary cavities (lungs and pleura), and a central mediastinum (other thoracic structures).

The inner layer of pleura that covers the lungs' surfaces.

The outer layer of pleura that lines the pulmonary cavities.

The potential space between the visceral and parietal pleurae, containing pleural fluid.

Lubricating fluid in the pleural cavity, facilitating smooth lung movement during breathing.

The abrupt changes in direction where the parietal pleura folds over from one wall to another.

The part of the parietal pleura that extends superiorly into the root of the neck.

Fibrous extension reinforcing the cervical pleura, also called Sibson fascia.

The thoracic cavity is divided into right and left pulmonary cavities (lungs and pleura), and a central mediastinum (other thoracic structures).

The inner layer of pleura that covers the lungs' surfaces.

The outer layer of pleura that lines the pulmonary cavities.

The potential space between the visceral and parietal pleurae, containing pleural fluid.

Lubricating fluid in the pleural cavity, facilitating smooth lung movement during breathing.

The abrupt changes in direction where the parietal pleura folds over from one wall to another.

The part of the parietal pleura that extends superiorly into the root of the neck.

Fibrous extension reinforcing the cervical pleura, also called Sibson fascia.

Serous sac that forms two continuous membranes (visceral and parietal) that surround the lung

Potential spaces around the diaphragm's curve within the chest, lined with pleura.

The top of the lung, extending above the collarbone and first rib.

Right lung divided into three lobes by fissures: superior, middle, and inferior.

Pyramid-shaped subdivisions of a lung lobe, surgically removable, independently supplied.

Bronchus that travels behind the aorta and in front of the esophagus.

Where the trachea divides into two main bronchi.

A wedge-shaped area on the lung's mediastinal surface where structures enter/exit the lung.

Wider and shorter than the left main bronchus, more vertical.

Left lung divided into two lobes: superior and inferior.

Three faces of the lung: costal, mediastinal and diaphragmatic.

Blood vessels that supply nutrient blood to lung tissue and structures.

Carry oxygenated blood away from the lungs back to the heart.

Nerves controlling lung functions like bronchoconstriction (narrowing of the bronchi) and bronchodilation (widening of the bronchi).

Small airways in the lungs, less than 1 mm in diameter.

Bronchioles that connect to air sacs (alveoli), the site of gas exchange.

Passages in the lungs that transport air, but don't have gas exchange.