Sympathetic - Cervical Sympathetic Trunk And Ganglia Flashcards
Trunk lies between the
___________
and the
___________ and ______________
Carotid sheath and the long us colli and capitis muscles
Are there white rami communicans going to the the cervical sympathetic trunk?
No white rami communicans. Gray ramus communicans to each cervical nerve
How do we get a stellate ganglion?
Inferior cervical ganglion may fuse with first thoracic ganglion to form stellate ganglion
Which is the largest cervical sympathetic ganglia?
Superior cervical ganglia
SCG formed by the union of
Upper 4 cervical ganglia
SCG located at level of ________ between ___________
C2-C3
Carotid sheath and longus capitis muscle
SCG Post gang fibers are distributed in anterior, medial, or lateral branches.
Which branches are the gray rami communicans?
Lateral branches are the gray rami communicans
SCG Post gang fibers are distributed in anterior, medial, or lateral branches.
Lateral branches communicate with ________
Anterior primary rami of C1-C4 as well as some cranial nerves (notably IX, X, XII)
SCG Post gang fibers are distributed in anterior, medial, or lateral branches.
Medial branches travel to _________ (3*)
Larynx, pharynx, and heart.
*Branches to the heart are the superior cardiac nerves (carrying only efferent info)
SCG Post gang fibers are distributed in anterior, medial, or lateral branches.
Anterior branches follow _________ arteries, innervating _________
Common and external carotid arteries
Vessels that supply blood to structures inside and outside the skull
Smallest of the cervical sympathetic ganglia
Middle
MCG located at level of
C6
MCG communicates with ant primary rami of ______ via ________
C5 and C6 nerves (lateral branches)
Gray rami communicans
MCG Thyroid branches (medial branches) reach the ________ glands and are primarily ___________
Thyroid and parathyroid glands
Vasomotor
MCG cardiac branches make up the ______
They contribute to the ______ part of the cardiac plexus
Middle cardiac nerves
Deep
Inferior cervical ganglion usually fuses with first thoracic ganglion to form ____________
Stellate ganglion (about 80% of the time)
ICG lies at level of ________
C7 transverse process and neck of first rib
ICG communicates with ant primary rami of ____________ via _________
C7 and C8 (also T1 if stellate ganglion is present)
Gray rami communicans
Cardiac branches of ICG travel back to the heart as
Inferior cardiac nerves
Branches of the ICG are sent to the subclavian artery and form plexuses around it and its branches, principally the _______ and ________
Axillary artery and vertebral artery