Neurons are separated from blood-borne substances by the blood-brain barrier (BBB), which is a highly selective semipermeable barrier formed by specialized endothelial cells in the blood vessels of the brain. These endothelial cells have tight junctions that prevent most substances in the blood from freely crossing into the brain. The BBB allows only certain molecules, such as oxygen and nutrients, to pass through while keeping out potentially harmful substances, like toxins and pathogens.
sensory neurons
Sensory Neurons
Sensory neurons and neurons are connected by Interneurons.
Interneurons or association neurons.
Motor neurons and intern neurons
The neurons form the bodies nervous system.
Sensory Neurons
Afferent Neurons
Interneurons or association neurons are connector neurons that establish connections between other neurons.
These are called efferent neurons. The one that carry impulses away are afferent. Afferent (A) are away (A).
Sensory neurons traveling through the dorsal root ganglion (DRG) are pseudounipolar neurons.