Autonomic Nervous System and Olfactory Receptors

Flashcards covering the classification of neurons in the autonomic nervous system and the structure of olfactory receptor cells.

Pre-ganglionic neurons

Neurons that send impulses at 15 m/sec and are classified as Type B fibers, which are medium-sized and myelinated.

Post-ganglionic neurons

Neurons classified as Type C fibers, which are small diameter and unmyelinated, sending impulses at 0.2 m/sec.

Sympathetic ganglia

Also known as chain ganglia, these are 22 pairs of ganglia located along the right and left sides of the vertebral column.

Prevertebral ganglia

Ganglia located anterior to the vertebral column in the abdominal pelvic area.

Terminal ganglia

Ganglia associated with parasympathetic stimulation, located near or within the visceral effectors.

Olfactory receptor cells

Bipolar neurons with expanded dendrites and olfactory hairs that interact with odorant molecules, reproducing every 30 days.

Basal cells

Cells responsible for the regular reproduction of olfactory receptor cells.