Upper GI Tract - I

Which of the following is a crucial part of our body that allows us to process and absorb nutrients from the food we eat?

• Respiratory System

• Digestive System

• Circulatory System

• Nervous System

Which of the following is not an accessory organ of the digestive system?

• Stomach

• Gall Bladder

• Pancreas

• Liver

Which layer of the GI tract primarily provides protection from luminal matter and offers the first barrier of support?

• Muscularis Externa

• Sub-Mucosa

• Serosa

• Mucosa

What is the role of the myenteric plexus in the GI tract?

• Regulates digestive secretions

• Influences motor control through effects on smooth muscle

• Provides protection from luminal matter

• Forms a barrier between blood and the GI tract

Which nervous system provides parasympathetic and sympathetic innervation to the GI tract?

• Peripheral Nervous System

• Enteric Nervous System

• Autonomic Nervous System

• Central Nervous System

What is the function of the parasympathetic nerves in the GI tract?

• Increase GI secretion and motility

• Decrease GI secretion and motility

• Regulate digestive secretions

• React to the presence of food

The submucosal plexus is also known as ____________

Sympathetic nerve fibers that innervate the GI tract originate from the __________ and upper lumbar spinal cord.

The parasympathetic nervous system primarily uses the neurotransmitter __________ to increase GI secretion and motility.

The meissner's plexus is located in the __________ layer of the GI tract.