Question

given the following photo of a human cadavers anterior lung surface:

match the component labeled with a(n) \d\ to its associated name from the choices below.

apex
superior lobe
oblique fissure
base
inferior lobe
middle lobe
horizontal fissure

Explanation:

Identify the anatomical structures of the lungs

Using the Lung Anatomy knowledge point, we identify the left and right lungs in anterior view. The lung on the left side of the image is the anatomical right lung (having three lobes: superior, middle, and inferior), and the lung on the right side of the image is the anatomical left lung (having two lobes: superior and inferior).

Analyze the fissures of the lungs

Using the Pulmonary Fissures knowledge point, we locate the fissures on both lungs:

• On the anatomical right lung (left side of the image):
• Label D points to the horizontal fissure, which separates the superior lobe (F) from the middle lobe (C).
• Label B points to the oblique fissure, which separates the middle lobe (C) and superior lobe (F) from the inferior lobe (A).
• On the anatomical left lung (right side of the image):
• Label D points to the oblique fissure, which is the only fissure separating the superior lobe (F) from the inferior lobe (A).

Determine the specific label "D"

Using the Pulmonary Fissures and Pulmonary Lobes knowledge points, we observe that label D points to:

1. The horizontal fissure on the anatomical right lung (separating superior and middle lobes).
2. The oblique fissure on the anatomical left lung (separating superior and inferior lobes).

Looking at the choices provided:

• apex (labeled as G)
• superior lobe (labeled as F)
• oblique fissure (labeled as D on the left lung, and B on the right lung)
• base (labeled as A)
• inferior lobe (labeled as A / lower region)
• middle lobe (labeled as C)
• horizontal fissure (labeled as D on the right lung)

Since D represents the oblique fissure on the left lung and the horizontal fissure on the right lung, we must look at the standard anatomical definitions. On the left lung (right side of the image), the prominent diagonal line running downwards and forwards is the oblique fissure, which is pointed to by label D. On the right lung (left side of the image), the horizontal line is the horizontal fissure (labeled D), while the oblique line is labeled B.

Therefore, label D represents the oblique fissure on the left lung and the horizontal fissure on the right lung. However, looking closely at the pointer lines for D:

• On the right lung (left image), D points to the horizontal fissure.
• On the left lung (right image), D points to the oblique fissure.

Let's re-verify the options. The question asks to match the component labeled with "D" to its associated name. Since "D" points to the oblique fissure on the left lung, "oblique fissure" is the correct matching choice.

Answer:

• apex
• superior lobe
• oblique fissure (Correct answer)
• base
• inferior lobe
• middle lobe
• horizontal fissure