Osteology Flashcards
SKULL ossification begins ? weeks (embryo)
7-8weeks
frontal and parietal; suture
coronal
2 parietals; suture
sagittal
between the bilateral parietal bones
sagittal suture
between the parietal and occipital bone
lambdoid suture
fronto-parietal articulation
coronal suture
intermaxillary, interpalatine, palato-maxillary sutures
cruciate suture (roof mouth)
temporal and parietal bone junction
squamous suture
formed by the cribriform plate and crista galli
ethmoid
hard palate, palatine and orbital processes
maxillary
sella turcica, foramen ovale, rotundum, lacerum, spinosum and more
sphenoid
sphenoid, frontal, zygomatic, palatine, ethmoid, lacrimal, maxillary
orbit some funny zebras play easy listening music
VC ossification begins (embryo)
7-8weeks
how many primary ossification centers; completed by what age
three; 3-6 yo
name the three primary ossification centers of the VC
body (centrum), each vertebral arch becomes lamina and pedicle
how many secondary ossification centers of the VC and are completed by what age
five; 25th year
what are the five VC secondary ossification centers
one: tip of SP; two: TP; two: annular ring epiphyses (sup and inf aspect of body
lumbars have how many additional ossification centers and for what
2 more, mamillary processes
bone type which have no direct sternal attachment (attach by costal cartilage)
flat bones
how many pairs of ribs
12
typical ribs
ribs 3-9
atypical ribs
1,2,11 and 12
shortest rib, costochondral joint articulates manubrium, scalene tubercle location, support subclavian vessels
1st rib
thinner, 2x length rib 1, serratus anterior tuberosity
2nd rib
short, no neck or tubercle, floaters (do no articulate sternum), only articulates with VB, single facet on head, end capped cartilage
11 and 12th rib
located on manubrium, anterior T3-T4 vertebra
jugular notch aka suprasternal notch
manubrium/sternum meet, 2nd rib attachment
angle of louis
sternum aka
gladiolus
located T5-T9, costal notches form lateral border
sternum
xiphisternal cartilaginous joint
xiphoid process
xiphoid process landmarks
diaphragm, diaphragmatic surface liver, inferior border heart
sacrum is how many fused vertebra by what age
5; 25
base of sacrum
sacral promontory
lateral sides (wings) of sacrum
sacral ala
branches of sacral spinal nerves pass through here
sacral foramina
articulates with coccyx
sacral apex
hyoid bone landmark
C3
cornu of thyroid landmark
C4
body of thyroid landmark
C5
cricoid cartilage landmark
C6
carotid tubercle landmark
C6
how many atypical vertebra in adults
9
lowest level vertebral artery
C6
joints of luska are where
C2-C6
boundaries of the IVF
pedicle, facets, body, disc