Sympathetic - Cervical Sympathetic Trunk And Ganglia

Question 1

Trunk lies between the

___________
and the
___________ and ______________

Answer 1

Carotid sheath and the long us colli and capitis muscles

Question 2

Are there white rami communicans going to the the cervical sympathetic trunk?

Answer 2

No white rami communicans. Gray ramus communicans to each cervical nerve

Question 3

How do we get a stellate ganglion?

Answer 3

Inferior cervical ganglion may fuse with first thoracic ganglion to form stellate ganglion

Question 4

Which is the largest cervical sympathetic ganglia?

Answer 4

Superior cervical ganglia

Question 5

SCG formed by the union of

Answer 5

Upper 4 cervical ganglia

Question 6

SCG located at level of ________ between ___________

Answer 6

C2-C3

Carotid sheath and longus capitis muscle

Question 7

SCG Post gang fibers are distributed in anterior, medial, or lateral branches.

Which branches are the gray rami communicans?

Answer 7

Lateral branches are the gray rami communicans

Question 8

SCG Post gang fibers are distributed in anterior, medial, or lateral branches.

Lateral branches communicate with ________

Answer 8

Anterior primary rami of C1-C4 as well as some cranial nerves (notably IX, X, XII)

Question 9

SCG Post gang fibers are distributed in anterior, medial, or lateral branches.

Medial branches travel to _________ (3*)

Answer 9

Larynx, pharynx, and heart.

*Branches to the heart are the superior cardiac nerves (carrying only efferent info)

Question 10

SCG Post gang fibers are distributed in anterior, medial, or lateral branches.

Anterior branches follow _________ arteries, innervating _________

Answer 10

Common and external carotid arteries

Vessels that supply blood to structures inside and outside the skull

Question 11

Smallest of the cervical sympathetic ganglia

Answer 11

Middle

Question 12

MCG located at level of

Answer 12

C6

Question 13

MCG communicates with ant primary rami of ______ via ________

Answer 13

C5 and C6 nerves (lateral branches)

Gray rami communicans

Question 14

MCG Thyroid branches (medial branches) reach the ________ glands and are primarily ___________

Answer 14

Thyroid and parathyroid glands

Vasomotor

Question 15

MCG cardiac branches make up the ______

They contribute to the ______ part of the cardiac plexus

Answer 15

Middle cardiac nerves

Deep

Question 16

Inferior cervical ganglion usually fuses with first thoracic ganglion to form ____________

Answer 16

Stellate ganglion (about 80% of the time)

Question 17

ICG lies at level of ________

Answer 17

C7 transverse process and neck of first rib

Question 18

ICG communicates with ant primary rami of ____________ via _________

Answer 18

C7 and C8 (also T1 if stellate ganglion is present)

Gray rami communicans

Question 19

Cardiac branches of ICG travel back to the heart as

Answer 19

Inferior cardiac nerves

Question 20

Branches of the ICG are sent to the subclavian artery and form plexuses around it and its branches, principally the _______ and ________

Answer 20

Axillary artery and vertebral artery