The paraganglia are small groups of chromaphil cells connected with the ganglia of the sympathetic trunk

Sympathetic trunk

The sympathetic trunks are a paired bundle of nerve fibers that run from the base of the skull to the coccyx.-Structure:...

 and the ganglia of the celiac

Celiac

Celiac may refer to:* Coeliac disease* Celiac artery* Celiac lymph nodes* Celiac plexus...

, renal, suprarenal

Suprarenal

Suprarenal is an adjective that can refer to:* Adrenal gland* Suprarenal veins...

, aortic and hypogastric plexus

Hypogastric plexus

Hypogastric plexus can refer to:* Superior hypogastric plexus* Inferior hypogastric plexus...

es. They are concentrated near the suprarenal

Suprarenal

Suprarenal is an adjective that can refer to:* Adrenal gland* Suprarenal veins...

 glands and essentially function the same way as the suprarenal medulla.

They are sometimes found in connection with the ganglia of other sympathetic plexuses.

None have been found with the sympathetic ganglia associated with the branches of the trigeminal nerve

Trigeminal nerve

The trigeminal nerve contains both sensory and motor fibres. It is responsible for sensation in the face and certain motor functions such as biting, chewing, and swallowing. Sensory information from the face and body is processed by parallel pathways in the central nervous system...

.

Nonchromaffin paraganglia include aortic bodies and the carotid body

Carotid body

The carotid body is a small cluster of chemoreceptors and supporting cells located near the fork of the carotid artery ....

.