Anatomy of the Thorax Quiz

Mediastinum excludes lungs, it contains heart, great vessels, esophagus, trachea, and thymus.

Sternum completes the thoracic cage along with ribs and thoracic vertebrae, providing support and protection.

The trachea, also known as the windpipe, connects the larynx to the bronchi, providing a pathway for air to enter and exit the lungs.

Costovertebral joints link the ribs to the vertebral bodies and transverse processes, contributing to the stability and mobility of the thoracic cage.

The sternal angle, also known as the angle of Louis, marks the articulation between the manubrium and the body of the sternum.

External intercostals aid in expanding the chest cavity during inspiration by elevating the ribs.

The azygos vein collects blood from the thoracic wall and empties into the superior vena cava.

Phrenic nerves originate from the cervical plexus, specifically from the C3 to C5 spinal nerves.

The right lung is divided into superior, middle, and inferior lobes, while the left lung has only superior and inferior lobes.

Internal intercostals aid in forced expiration by depressing the ribs and reducing the thoracic cavity volume.

The spinous process is part of the vertebrae, not the sternum, which consists of the manubrium, body, and xiphoid process.

Costal cartilages provide flexibility to the thoracic cage, enabling the ribs to move during breathing.

The diaphragm forms the boundary between the superior and inferior mediastinum, with structures like the heart in the superior and the esophagus in the inferior.

The sympathetic trunk travels bilaterally along the posterior aspect of the vertebral column, housing sympathetic ganglia.

Intercostal nerves innervate the skin of the anterior chest and medial arm, providing sensory information to these areas.