Flashcards in Cervical Plexus: Motor Deck (11):
Other than the sensory nerves, what muscles does the Cevcial Plexus give motor supply to?
Infrahyoid (strap) muscles
What are the infrahyoid muscles responsible for?
speech, swallowing, movement of the mandible
the structure that gives rise to the motor fibers that supply the infrahyoid muscles.
The nerve levels that form the superior root of the ansa cervicalis.
C1 (sometimes C1 and C2). This portion also descends from the hypoglossal nerve.
The nerve levels that form the inferior root of the ansa cervicalis.
C2 and C3.
When the to roots fo the ansa cervicalis unit, they supply what?
Three of the four infrahyoid muslces:
The nerve that supplies the thyrohyoid muscle
Exclusively from C1 fibers through the hypoglossal nerve
The mixed nerve that is considered to be part of the cervical plexus.
Teh origins of the Phrenic nerve
C3, C4, C5
Teh nerve supply of the phrenic nerve
Sensory: Some membranes of the thorax and abdomen