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SELECTED ORGAN / STRUCTURE TO FUNCTION

Left lung

An organ in the thorax that brings air close to the pulmonary circulation while keeping the two separated by a thin exchange barrier.

A shared anterior preparation keeps the right three-lobe and left two-lobe arrangements visible together; the selected model retains its own side.

Read the connected anatomy →

30-SECOND ORIENTATION / AN ILLUSTRATION AT ANOTHER SCALE

Connect the selected shape to normal anatomy.

The image and editable labels explain anatomical relationships. They do not reveal new structures in the model you selected.

Retained anterior gross lungs and tracheobronchial context above the diaphragm.
Retained AI-assisted gross-organ illustration, not a scan or an exact registration of the chosen mesh. Patient right is image left. This gross overview does not resolve microscopic airway layers, the exchange barrier or the neural control of breathing.
Structure notes · further context
Trachea
Cartilage-supported passage divides into two main bronchi.
Right lung · three lobes
Image left: superior, middle and inferior lobes, separated by fissures.
Left lung · two lobes
Image right: superior and inferior lobes with a medial cardiac indentation.
Diaphragm context
Skeletal muscle beneath the lungs changes chest volume.

Paired lungs: airway, lobes and moving boundary · atlas detail

Retained anterior gross lungs and tracheobronchial context above the diaphragm.

Retained AI-assisted gross-organ illustration, not a scan or an exact registration of the chosen mesh. Patient right is image left. This gross overview does not resolve microscopic airway layers, the exchange barrier or the neural control of breathing.

Open full-resolution illustration ↗ · Image only; the same editable labels remain in this lesson.

3-MINUTE UNDERSTANDING / ONE CANONICAL LEARNING PATH

Continue from what you can see to how it works.

Each route opens the corresponding existing lesson. The same deeper chapter remains the source of its full medical explanation.

DEEPER LEARNING / ORIGINAL MODEL-LINKED EXPLANATIONS

Read the structure and function together.

Position, lobes and airways

The left lung normally has two lobes and accommodates the heart medially. Branching airways distribute inspired air toward alveoli; a surface indentation is not an alveolus.

Two flows meet across a barrier

Ventilation renews alveolar air. Pulmonary blood flow carries blood past that air, and gases diffuse along partial-pressure gradients across the alveolar–capillary barrier. Oxygen enters blood and carbon dioxide leaves it; the model surface cannot demonstrate this microscopic exchange.

Movement comes from the thorax

The diaphragm and other breathing muscles change thoracic volume. Pleural coupling allows the lung to follow chest movement. Lung tissue recoils during expiration; it does not pump by contracting like skeletal muscle.

Sources and scope

Original AllHumanBody teaching explanations and retained chapter illustrations. The selected source-labelled model, authentic medical photographs and AI-assisted teaching illustrations are different resource types. This plate is an illustration, not a scan, microscopy or certification of hidden structures in the selected model. Existing chapter source and image-provenance records are retained.

The original source-linked notes above are preserved. Detailed mechanisms and their supporting references remain in the linked canonical chapter. Medical source checks do not constitute human medical review or personal diagnostic advice; fine generated anatomy and physical-phone acceptance are not independently certified.