Flashcards in S.A. Osteology Deck (30)
when does skull ossification begin?
7-8 weeks (embryo)
where are sutures?
coronal- frontal & parietal
Sagittal- 2 parietals
lambdoidal- parietal & occipital
Squamous- temporal & parietal
where is the cribriform plate & crista galli located?
what makes up the maxillary?
hard palate, palatine, orbital processes
what are features of sphenoid?
sella turcica, foramen rotundum, foramen ovale, for. lacerum, for. spinosum, etc.
what makes up an orbit?
sphenoid, frontal, zygomatic, palatine, ethmoid, lacrimal, maxillary (NOT NASAL)
when does VC ossification begin?
7-8 weeks (embryo)
what are the 3 primary oss. centers? complete oss. by?
One body (centrum)
One each of vertebral arch (lamina & pedicle)
completed by 3-6 years old
what are the 5 secondary oss. centers?
one tip of spinous
two- annular ring epiphyses (sup & inf aspect of body)
complete oss. by 25 yrs old
Lumbars have 3 additional oss. centers T/F?
False; 2- one for each mamillary process
what are flat bones?
no direct sternal attachment
how many pairs of ribs are there?
what are the typical ribs?
what are the Atypical ribs?
which ribs are floaters?
11 & 12
jugular notch- loc: T3-T4
angle of louis (sternal angle) manubrium/sternum meet; 2nd rib attachment
Sternum Aka? features?
body is located: T5-T9
costal notches form lateral borders
Xiphoid process landmarks?
diaphragmatic surface of liver, inferior border of heart
sacrum is made up of?
5 fused vertebrae- by age 25
Base- sacral promontory
Ala- lateral sides aka wings
sacral foramina- spinal nerves pass thru
APEX- art. with coccyx
C4- cornu of thyroid
C5- body of thyroid
C6- Cricoid cart.
C6- carotid tubeclr
what are the boundaries of the IVF?
what are the shapes of VB in cervical? thoracic? lumbar?
Reniform (kidney bean)
C1 sup art facet/ inf. art. facet orientation?
C2 SAF/IAF orientation?
C3-C6 SAF/IAF orientation?
C7 SAF/IAF orientation?
T1-T11 SAF/IAF orientation?
T12 SAF/IAF orientation?
L1-L5 SAF/IAF orientation?