Spinal Anatomy/Neuro Flashcards
C3
hyoid bone
c4,5
thyroid cartilage
c6
cricoid cartilage
C6,7,T1
Thyroid gland
T2
Superior angle of scap
T3/4
base of spine of scap
T6/7
Inf angle of scap
T4/5
sternal angle/trachea bifurcation
t10
xiphoid process
T8,10,12
IVC, esophagus, aorta
L4
tubercle of iliac crest
s2
psis
t4 dermatome
nipple line
t10
umbilicus
How may bones in adult spinal column
24 true, 2 false (sacrum and coccyx)
how many IVD’s
23-named for vert above
how many pairs spinal nerves
31-begin at occiput/C1
ends with Co1 at sacral hiatus at S5 segment
true ribs and why
1-7 (attach to sternum)
false ribs and why
8-10 (indirect attach to sternum)
floating ribs
11 and 12 (no attachment)
how many cervical nerves
8 pairs- exit INFERIOR
disc protrusion affects nerve above
thoracic nerves
12
Lumbar nerves
5 pairs
exit superiorly
disc protrusion effects nerve below
sacrum nerves
5 pairs
coccyx nerves
1 pair
how many dermatomes
30
2 plexus’s that innervate UE and LE
Brachial Plexus-C5-T1
Lumbosacral Plexus- T12-S4
Musculocutanues nerve roots
C5C6
Median and Radial nerve roots
C5-T1 (medial and lateral cords)
Ulnar nerve roots
C8-T1 (medial cord)
axllary nerve roots
c5c6 (posterior cord)
phrenic nerve root
c3-c5
long thoracic roots
c5-7
dorsal scap roots
c5-c8
suprascapular nerve
c5 c6
medial pectoral roots
c8-t1
lateral pectoral roots
c5-c7
illihypogastric nerve roots
T12, L1
illioinguinal nerve roots
L1
genitofemoral nerve roots
L1L2
Lat Femoral Cutaneus
L2 L3
Femoral nerve roots
L2, L3, L4
Obturator nerve roots
L2, L3, L4
Thoracic and Sacral curve names
Kyphosis, primary, accomodating
Lumbar and Cervical curve names
Lordosis, compensating, secondary
thoracic vertebrae are____posteriorly
thicker, discs equal height
Cervical bodies are _______height
equal, discs are wedged greater anteriorly
Lumbar bodies ______in height
vary, discs are wedged, greater anteriorly
typical and atypical vertebrae in cervical spine
typical C3-C6
atypical C1 and C7 (no body, transitional)
Typical cerival vertebrae characteristics
Oval body triangular vertebral foramen 45 degree facets, no rotation uncinate processes Ant/Inf lipping Bifid SP's
vertebral artery flows thru
C6-C1 thru posterior vertebral groove
Ligamentum nuchae attachment
EOP-C7
normal ADI for adults and child
.5-3mm adult
3-5mm child
typical thoracic vertebrae
T2-T8
heart body, circular vertebral foramen
Typical thoracic vert characteristics
facets 60 degree, 20 degree lat rotation
4 demi facets
2 costotransverse facets
Ribs named after vertebrae above or below
BELOW except rib 1,10-12
T1 characteristics
2 full facets
2 inf demifacets
2 costotransverse facets
t9 characteristics
2 sup demifacets
no inf demifacets
2 costotransverse facets
t10
2 full facets
2 costotransverse facets
t11,t12 characteristics
2 full facets
no costotransverse facets
typical lumbar vertebrae
facets 90 degrees, 45 degrees medial
mamillary processes
triangular vertebral foramen
kidney bean shaped
coccyx has___fused vertebrae
4
IVF’s in each segment
Cervical=smallest
Lumbar=largest
sagittal suture
joins parietal bones
coronal suture
joins frontal and parietal bones
lambdoidal suture
joins parietal and occipital bones
bregma
sagittal and coronal sutures
pterion
frontal, parietal, temporal, sphenoid
asterion
end of parietomastoid suture
olfactory nerve exits
cribiform plate
optic nerve exits
optic canal
oculomotor nerve exits
superior orbital fissure
trochlear nerve exits
superior orbital fissure
trigeminal nerve exits
V1- superior orbital fissure
V2- foramen rotundum
V3- foramen ovale
abducensnerve exits
superior orbital fissure
facial nerve enters and exits
Enter- internal auditory meatus
exit- stylomastoid foramen
vestibulocochlear nerve exits
internal auditory meatus
glossopharyngeal nerve exits
jugular foramen
Vagus nerve exits
jugular formaen
Spinal accessory nerve exits
jugular foramen
hypoglossal nerve exits
hypoglossal canal
ligamentum nuchae->
EOP- C7 ->supraspinous ligament->superficial posterior sacrococcygeal
tectorial membrane->
posterior longitudinal->deep posterior sacrococcygeal
anterior longitudinal->
anterior sacrococcygeal
ligamentum flavum->
C2-S1: elastic and yellow
Capsular ligaments
surrounds facet joints
cruciate ligament
between C1 C2
Synarthrotic joint
Immovable,
fibrous joints
Ex: gomphosis, teeth, synostoses
amphiarthrotic joint
slightly moveable
symphysis joint- IVD and symphysis pubis
Diarthrotic Joint
very mobile
synovial joint-hinge, spheroid, pivot
3 parts of IVD
- Annulus fibrosis-Sharpeys fibers (type 1 collagen)
- Nucleus Pulposus (type II colagen)
- vertebral endplates (cartilage) for imbibition
Bulge
Protrusion
Extrusion
Sequestration
-pulposus
thru pulposus
thru to annulus fibrosis
broken off
joint for nodding
Co-C1
Rotation joints
C1C2
thoracics
Layer 1 back muscles
lat dorsi
trap
layer 2-4 back muscles
rhomboids serratus posterior levator scap splenius capitus, cervicis QL
Layer 5 Erector Spinae
Layer 5-
Illiocostalis lumborum,
longissamus
spinalis
Layer 6 back muscle
More Read Sauce
Multifidi
rotators
semispinalis
suboccipital triangle
Rectus Capitis posterior-medial
Obliquus capiis superior- sup
Obliquus capitis inferior- inf
Cntents of sub occipital triangle
vertebral artery, suboccipital nerve, suboccipital venous plexus
what innervates skin of back and deep muscles of back
dorsal primary ramii
what innervates everything but skin of back and deep muscles of back, head and neck
ventral primary ramii
which nerve roots form ansa cervicalis
C2C3
nerves innervating anterior aspect of vertebral canal
recurrent meningeal nerves