The enteric nervous system is responsible for coordinating the contractions of the muscles in the digestive tract, which propel food through the system.

The sympathetic nervous system is part of the central nervous system, while the myenteric plexus, submucosal plexus, and parasympathetic nervous system are all components of the enteric nervous system.

Motor neurons, sensory neurons, and interneurons all play a role in controlling the movement of food through the digestive tract.

Nociceptors are not found in the enteric nervous system. They are sensory neurons that respond to pain.

The myenteric plexus is a network of neurons located between the layers of muscle in the digestive tract. It is responsible for coordinating the contractions of the muscles, which propel food through the system.

The submucosal plexus is a network of neurons located in the submucosa, the layer of tissue beneath the lining of the digestive tract. It is responsible for regulating the secretion of digestive enzymes and other substances into the lumen of the digestive tract.

Dopamine is not a neurotransmitter used by neurons in the enteric nervous system. It is a neurotransmitter that is primarily involved in reward and motivation.

The enteric nervous system plays a role in all of these aspects of the gastrointestinal reflex.

Parkinson's disease is a disorder of the central nervous system, not the enteric nervous system.

Cholecystokinin is a hormone that is produced by the enteric nervous system in response to the presence of fat in the small intestine. It stimulates the secretion of digestive enzymes from the pancreas and gallbladder.

The enteric nervous system does not control the heart rate. This is a function of the central nervous system.

Cholecystokinin is a hormone that is produced by the enteric nervous system in response to the presence of fat in the small intestine. It stimulates the contraction of the gallbladder, which releases bile into the small intestine.

Glial cells are not found in the enteric nervous system. They are cells that support the neurons in the central nervous system.

Gastrin is a hormone that is produced by the enteric nervous system in response to the presence of food in the stomach. It stimulates the secretion of gastric acid from the stomach lining.

Glutamate is not a neurotransmitter used by neurons in the enteric nervous system. It is a neurotransmitter that is primarily involved in excitatory synaptic transmission in the central nervous system.