Sympathetic Flashcards
Spinal cord segments?
T1-L4
Pathway for Preganglionic axons?
Ventral Root -> spinal nerve -> ramus communicans -> Sympathetic trunk
Are T1-L4 ramus commincans pre ganglionic axons Myelinated?
Yes, but all other ramus commincans are non-myelinated pre gang axons
Where do pre ganglionic axons arise?
Pre-synaptic neurons arise in the intermedio-lateral horn of the spinal cord at T1 to L4
Where are the paravertebral ganglia located?
Sympathetic trunk
Name the pre vertebral ganglia
Celiac ganglion
Cranial mesenteric ganglion
renal and gonadal ganglion
Caudal mesenteric ganglion
Name 3 cranial most sympathetic ganglia
Cranial cervical
Middle cervical
Cervico thoracic
What does the ansa subclavia connect
Middle and cervico thoracic gang
Where do sympathetic pre gang to the eye synapse?
Cranial cervical ganglion. Travel through the ciliary without synapsing
What ganglia sends post gang axons to the larynx, pharync and thyroid
Cranial Cervical
Erector pili in neck?
Cranial Cervical
heart bronchial smooth muscle?
Middle Cervical
Pelvic Viscera
Caudal Mesenteric
Arector pili to body wall?
paravertebral gang