Anatomy Unit 3 - Sheet10 Flashcards
end of spinal cord
L2
location of CSF
subarachnoid space
anterior spinal artery
branches of vertebral artery; runs through ventral median fissure
posterior spinal arteries
branches of posterior inferior cerebellar arteries and vertebral artery; anastomose with anterior spinal artery
radicular arteries
accompany dorsal and ventral roots of spinal nerves0
spondylolisthesis
separation of spinous process; lamina; inferior articular process from rest of vertebrae; typically L4 or L5 slippage
what runs through foramen transversarium
vertebral artery; sympathetic and venous plexi
atlas anterior arch
where anterior longitundinal ligament attaches
atlas lateral mass
superior facet where occiput articulates face upward and medial; transverse ligament attaches to medial aspect; inferior facets for articulation with C2
transverse ligament of atlas
separates dens from vertebral foramen
anterior longitudinal ligament attachments
discs; margins of vertebral bodies; loose attachment to intermediate levels of vertebral bodies
posteior longitudinal ligament attachments
discs; margins of vertebral bodies
SI joint cartilage
hyaline on sacrum; fibrocartilage on ilium
superficial cutaneous branches of cerivcal plexus
lesser occipital (C2); greater auricular (C2-3); transverse cervical (C2-3); supraclavicular (C3-4)
lesser occipital nerve
C2; provides sensation posterior to ear; wraps underneath SCM then goes superior; posterior to greater auricular
greater auricular nerve
C2-3; sensation of ear; wraps underneath SCM then goes superior; anterior to lesser occipital
transverse cervical nerve
C2-3; branches lie on top of SCM
supraclavicular nerve
C3-4; just posterior to SCM
muscles innervated by deep motor branches of cervical plexus; anterior medial
rectus capitus lateralis and anterior (C1-2); longus capitus (C1-3); longus colli (C2-7)
muscles innervated by deep motor branches of cervical plexus; anterior lateral
SCM (via accessory nerve C1-2); trap (via accessory nerve C2-4); levator scap (C3-4 and via dorsal scapular C4-5); middle and anterior scalenes
phrenic nerve
C3-5; lies on top of anterior scalene; part of cervical plexus
commuticating branches of cervical plexus
to vagus and hypoglossal nerves; nerves to thyrohyoid and geniohyoid run next to hypoglossal but not part of it
ansa cervicalis
superior root (C1) descends from hypoglossal nerve; innervates superior belly of omohyoid; inferior root from C2-3; loop innervates sternohyoid sternothyroid and inferior belly of omohyoid; loop lies on top of internal jugular vein
bones of the orbit
frontal zygomatic maxilla externally; internally sphenoid lacrimal palatine ethmoid
cranial nerves in the orbit
optic (sight); oculomotor (intrinsic mucles; branch to ciliary ganglion); trochlear (superior oblique muscle); abducens (lateral rectus and abducent mucles); maxillary (leaves as infraorbital nerve; goes to pterygopalatine ganglion); opthalmic (anterior and posterior ethmoid nerves; branches to ciliary ganglion
arterial supply of eye
opthalmic artery is branch off internal carotid supplies extrinsic eye mucles; external carotid branches supply outside the orbit
tarsus of eye
skeleton of eyelids; provide stability for eyelid margin
2 muscles in upper eyelid
levator (innervated by oculomotor nerve); Mueller (innervated by sypathetic nerves)
TMJ joint types
upper: articular emminance to articular disc gliding joint; lower: disc to condyle of mandible hinge joint