**Question:** Liver is divided into right and left lobe by all EXCEPT:

A. Glisson's capsule
B. Blood vessels
C. Hepatic ducts
D. Hepatic artery

**Core Concept:**
The liver is a vital organ in the human body, with multiple lobes that play crucial roles in various physiological processes. In general, the division of the liver into right and left lobes is determined by anatomical features. In this case, we need to identify which structure does not separate the liver into its two main lobes.

**Why the Correct Answer is Right:**
The correct answer, D - Hepatic artery, is not responsible for dividing the liver into its right and left lobes. The hepatic artery supplies blood to the liver, while the other options are relevant to the liver's structure and function.

**Why Each Wrong Option is Incorrect:**
A. Glisson's capsule: This is a thin, dense connective tissue layer surrounding the liver, providing support and protection. It is involved in the division of the liver into lobes.
B. Blood vessels: The liver's blood vessels, including the hepatic veins and portal triads, contribute to the formation of the liver's lobes.
C. Hepatic ducts: These are bile ducts that connect the liver to the biliary system and play a role in bile production and transport. They are involved in the division of the liver into lobes.

**Clinical Pearl:**
Understanding the division of the liver into right and left lobes is essential for physicians and medical students to appreciate the anatomy and function of the liver. This knowledge is crucial when assessing liver diseases, performing liver biopsies, or operating on the liver during surgeries.

**Correct Answer:**
The correct answer is D - Hepatic artery. The liver is not divided by the hepatic artery as it supplies blood to the liver and does not play a role in the division of the liver into lobes. The right and left lobes are primarily separated by Glisson's capsule, blood vessels (hepatic veins and portal triads), and hepatic ducts.