Nerves - Sympathetic Innervation

Question 1

Where do the sympathetic fibres of the head and neck originate?

Answer 1

T1-T6

Question 2

Which ganglia are related to the head and neck?

Answer 2

1) Superior cervical
2) Middle cervical
3) Inferior cervical

Note that there can be variations in individuals. Some may not have a middle cervical. Others may have a fused inferior cervical and 1st thoracic ganglion, forming the cervicothoracic ganglion.

Question 3

Superior cervical ganglion

Answer 3

Located posterior to the carotid artery and anterior to C1-C4.