The layer of GIT that is composed of either areolar or dense irregular connective tissue and contains nerves, blood vessels, and lymph vessels is the submucosa.
The gastrointestinal tract (GIT) is known as a long tube through which food passes.
The GIT starts from the mouth and ends in the anus with accessory glands such as the pancreas, liver and bile.
There are different layers of the GIT wall which include:
The submucosa layer is made up of loose areolar connective tissue which contains collagen and some elastic fibres.
This binds the muscular layer to the mucosa.
The submucosa also contains blood vessels, nerves and lymph vessels.
The blood vessels are arterioles, venules and capillaries.
The nerve found in this layer is the submucosal plexus which contains sympathetic and parasympathetic nerves.
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