This can then lead to exocrine pancreatic insufficiency. Lupus. The autoimmune disease lupus can cause a rare condition called autoimmune pancreatitis, where the bodyâs T-cells (blood cells that fight infection) attack the pancreas. Autoimmune pancreatitis can lead to chronic pancreatitis and, in some cases, to exocrine pancreatic insufficiency,â Gress says.
Quick Answer. When a neuron is stimulated by another neuron, an ionic gradient is created across the neuron's plasma membrane, which creates an electric current flow in the neuron. The current flow travels down the axon and causes neurotransmitters to be released at the terminals to stimulate downstream neurons. Continue Reading
The Stretch Reflex : (See Figure 13.15). The stretch reflex in its simplest form involves only 2 neurons, and is therefore sometimes called a 2-neuron reflex. The two neurons are a sensory and a motor neuron. The sensory neuron is stimulated by stretch (extension) of a muscle.Stretch of a muscle normally happens when its antagonist contracts, or artificially when its tendon is stretched, as in the knee jerk reflex.Muscles contain receptors called muscle spindles. (See Figure 13.13) These receptors respond to the muscles's stretch.he two neurons are a sensory and a motor neuron. The sensory neuron is stimulated by stretch (extension) of a muscle. Stretch of a muscle normally happens when its antagonist contracts, or artificially when its tendon is stretched, as in the knee jerk reflex.