Ciliary ganglion

A group of nerve cell bodies, usually located outside the brain and spinal cord. A ganglion located inside the central nervous system is called a nucleus.

ganglion

Biology; Entomology

A nerve mass that serves as a center of nervous influence.

ganglion

Medical; Health care; Medicine

Nodular tumor-like lesions or mucoid flesh, arising from tendon sheaths, ligaments, or joint capsule, especially of the hands, wrists, or feet. They are not true cysts as they ...

neurons

Anatomy; Nervous system

Neurons or neurones are the core constituents of the nervous system (this was discovered by the Spanish anatomist Santiago Ramón y Cajal in the 20th century). They are formed by a ...

esophageal plexus

Anatomy; Nervous system

The esophageal plexus is formed by fibers from two sources: branches of the vagus nerve and visceral branches of the sympathetic trunk. The esophageal plexus and the cardiac ...

ethmoidal nerves

Anatomy; Nervous system

The ethmoidal nerves, which arise from the nasociliary nerve, supply the ethmoidal cells; the posterior branch leaves the orbital cavity through the posterior ethmoidal foramen ...

external laryngeal nerve

Anatomy; Nervous system

The external laryngeal nerve is the smaller, external branch (ramus externus) of the superior laryngeal nerve. It descends on the larynx, beneath the sternothyroid muscle, to ...

external nasal nerve

Anatomy; Nervous system

The external nasal branches (or external nasal nerve) are terminal branches of the anterior ethmoidal nerves (from the ophthalmic division of the trigeminal nerve, CN V), and ...

facial nerve

Anatomy; Nervous system

The facial nerve is the seventh (VII) of twelve paired cranial nerves. It emerges from the brainstem between the pons and the medulla, and controls the muscles of facial ...