APPLIED RADIOLOGICAL ANATOMY

ANATOMY

HEPATOBILIARY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The gallbladder is innervated by
A
Hepatic plexus
B
Pancreatic plexus
C
Biliary plexus
D
Duodenal plexus
Explanation: 

Detailed explanation-1: -RESULTS: Innervation of the gallbladder occurred predominantly through two routes. One was from the anterior hepatic plexus, the innervation occurred along the cystic arteries and duct. Invariably this route passed through the hepatoduodenal ligament.

Detailed explanation-2: -The ganglionated plexus of the gallbladder is composed of an array of small, irregularly shaped ganglia that are arranged in no discernible order (Fig. 1A). The ganglionated plexus is contiguous with perivascular nerve bundles that follow blood vessels into the organ.

Detailed explanation-3: -The liver parenchyma receives autonomic innervation from the hepatic plexus. The parasympathetic input is provided by branches of the vagus nerves (CN X). The sympathetic fibers originate from the celiac plexus. The liver capsule is innervated by the branches of the lower intercostal nerves.

Detailed explanation-4: -Function. Both of these nerves supply motor fibers to the diaphragm and sensory fibers to the fibrous pericardium, mediastinal pleura, and diaphragmatic peritoneum. Some sources describe the right phrenic nerve as innervating the gallbladder, other sources make no such mention.

There is 1 question to complete.