Lung Anatomy Exam Quiz! Trivia

The left lung is made up of two lobes. The lungs are divided into lobes, and the left lung has two lobes while the right lung has three lobes. The lobes are further divided into smaller sections called bronchopulmonary segments. The division of the lungs into lobes allows for efficient oxygen exchange and helps in the functioning of the respiratory system.

The lingula of the lung is a characteristic of the left lung. The lingula is a small, tongue-like projection that extends from the upper lobe of the left lung. It is considered an anatomical landmark and is located anterior to the cardiac notch. The lingula helps to separate the superior and inferior lobes of the left lung and is analogous to the middle lobe of the right lung. It is important for understanding the anatomy and function of the left lung.

The right primary bronchus is larger, straighter, and shorter than the left, which makes it more likely for foreign objects to pass into it when aspirated into the trachea. This is because the larger size and straighter path offer less resistance and obstruction for the object to pass through. The shorter length also means that the object has a shorter distance to travel before reaching the bronchus.

The correct answer is the plane of the sternal angle. The trachea bifurcates at a point known as the carina, which is located at the level of the sternal angle. The sternal angle is the angle formed by the junction of the manubrium and body of the sternum, and it corresponds to the level of the second thoracic vertebra. Therefore, the bifurcation of the trachea occurs at the level of the plane of the sternal angle.

The azygos vein leaves the most pronounced impression on the right lung of the cadaver. This is because the azygos vein is a large vessel that runs along the right side of the vertebral column and drains blood from the posterior thoracic wall. Its close proximity to the right lung causes it to leave a noticeable mark or impression on the lung.

The correct answer is 3,2,5. This means that the superior lobe of the right lung has 3 bronchopulmonary segments, the middle lobe has 2 segments, and the inferior lobe has 5 segments.

The bronchopulmonary lymph nodes are located in the hilum of the lung. These lymph nodes are responsible for draining lymphatic fluid from the lungs and surrounding structures. They play a crucial role in filtering and removing waste products, pathogens, and foreign particles from the respiratory system. The bronchopulmonary lymph nodes are closely associated with the bronchi and pulmonary blood vessels, making them an important component of the lung's immune defense system.

The left main bronchus is located inferior to the arch of the aorta. This means that it is positioned below the arch of the aorta in the thoracic cavity.

The correct answer is the fourth intercostal space. Auscultation of the right middle lobe of the lung is done at the fourth intercostal space, which is located between the fourth and fifth ribs. This area is on the anterior chest wall and is an appropriate location to listen for abnormal lung sounds associated with a severe right middle lobe infection.

The sternal angle, also known as the angle of Louis, is an important anatomical landmark located at the level of the second rib and the intervertebral disc between the fourth and fifth thoracic vertebrae. The carinal ridge refers to the ridge or prominence found at the bifurcation of the trachea into the right and left main bronchi. Therefore, it is likely to be located at the level of the sternal angle. The other structures/features listed in the question are not typically found at the sternal angle.

The correct answer states that the primary bronchus is generally posterior in the hilum. This means that the primary bronchus, which is the first branch of the trachea leading into the lungs, is usually located towards the back of the hilum. The hilum is the area on the lung where the bronchi, blood vessels, and nerves enter and exit. This information is important for understanding the anatomical positioning of the primary bronchus in relation to the hilum.