MRCP UK EXAMINATIONS

ABDOMINAL

GASTROINTESTINAL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The myenteric plexus is also called:
A
Meissner’s plexus
B
Auerbach’s plexus
C
Plexus of Ranvier
D
None of the above
Explanation: 

Detailed explanation-1: -Auerbach plexus (named after Leopold Auerbach (1828-1897)), also known by the name of myenteric plexus, is a group of ganglia that run throughout the entire gastrointestinal tract and innervate its multiple layers of smooth muscle.

Detailed explanation-2: -The myenteric plexus (Auerbach’s plexus) located between the longitudinal and circular muscular layers is for the most part responsible for coordination of intrinsic (entero-enteric) and extrinsic (under the influence of the central nervous system [CNS]) information and subsequent regulation of GI motility.

Detailed explanation-3: -The myenteric plexus, also known as Auerbach’s plexus, is located between the longitudinal and circular muscle layers of the esophagus, stomach, and small and large intestine. The submucosal plexus, also known as Meissner’s plexus, is situated in the submucosal region between the circular muscle and mucosa.

Detailed explanation-4: -The myenteric plexus (Auerbach plexus) is one of two principal components of the enteric nervous system. It is embedded in the walls of the digestive tract from the esophagus and all the way to the rectum.

Detailed explanation-5: -Normal Histology. The myenteric plexuses with ganglia are seen here in the colon. These myenteric (Auerbach’s) plexuses are located between the outer longitudinal and the inner circular muscle layers. The mucosa is seen at the far right, beneath which is a thin muscularis mucosa, and beneath that a submucosa.

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