Table 1 Classification of vagal fiber types at the cervical level according to the Erlanger-Gasser scheme

Aα

13–22

Low

Yes

70–120

Motor innervation of laryngeal muscles

Eff.

Aβ

8–13

Low

Yes

40–70

Mechanosensation of laryngeal and pharyngeal mucosal surfaces

Aff.

Aδ

1–4

Interm.

Yes

5–15

Visceral mechanoreceptors (e.g. baroreceptors), pain, temperature

Aff.

B

1–3

Interm.

Yes

3–14

Preganglionic autonomic parasympathetic to viscera

Eff.

C

0.1–1

High

No

0.2–2

Visceral sensation of pain, temperature, inflammatory stimuli

Aff.

C

0.1–1

High

No

0.2–2

Postganglionic autonomic sympathetic to viscera

Eff.