Head and Neck Flashcards
What are the dural venous sinuses?
Superior ophthalmic veins
Cavernous sinus
Superior petrosal sinus
Inferior petrosal sinus
Where is the blood in the dural venous sinuses going
internal jugular vein
where does the internal jugular vein begin
jugular foramen
What are the foramen of the anterior cranial fossa?
foramen of the cribriform plate of the ethmoid bone
What are the foramen of the middle cranial fossa?
Optic canal, superior orbital fissure, foramen rotunda, foramen ovale, foramen spinous, foramen labcrum is not important, carotid canal
What are the foramen of the posterior cranial fossa?
Internal acoustic meatus
JUGULAR foramen
Hypoglossal canal
Foramen magnum
cerebrum
four lobes = frontal, parietal, temporal , occipital
whats the primary eye ADductor?
medial rectus
whats the primary eye ABductor?
lateral rectus
gray communicating rami
every spinal segment; brings post ganglionic, sympathetic from chain to REJOIN the spinal nerve
white communicating rami
T1-L2; takes PRE sympathetics from spinal nerve to chain
What forms the carotid sheath?
all three fascias of the neck (superficial layer, visceral fascia, pre vertebral fascia)
What is enclosed in the carotid sheath?
Common carotid artery, internal jugular vein and vagus nerve
what makes up the ansa cervicalis
C1 creates superior limb and C2 , C3 join to form inferior limb
what does ansa cervicalis innervate
the infra hyoid muscles
