S.A. Osteology

Question 1

when does skull ossification begin?

Answer 1

7-8 weeks (embryo)

Question 2

where are sutures?

Answer 2

coronal- frontal & parietal
Sagittal- 2 parietals
lambdoidal- parietal & occipital
Squamous- temporal & parietal

Question 3

where is the cribriform plate & crista galli located?

Answer 3

ethmoid

Question 4

what makes up the maxillary?

Answer 4

hard palate, palatine, orbital processes

Question 5

what are features of sphenoid?

Answer 5

sella turcica, foramen rotundum, foramen ovale, for. lacerum, for. spinosum, etc.

Question 6

what makes up an orbit?

Answer 6

sphenoid, frontal, zygomatic, palatine, ethmoid, lacrimal, maxillary (NOT NASAL)

Question 7

when does VC ossification begin?

Answer 7

7-8 weeks (embryo)

Question 8

what are the 3 primary oss. centers? complete oss. by?

Answer 8

One body (centrum)
One each of vertebral arch (lamina & pedicle)
(3 total)
completed by 3-6 years old

Question 9

what are the 5 secondary oss. centers?

Answer 9

one tip of spinous
two- TP
two- annular ring epiphyses (sup & inf aspect of body)
complete oss. by 25 yrs old

Question 10

Lumbars have 3 additional oss. centers T/F?

Answer 10

False; 2- one for each mamillary process

Question 11

what are flat bones?

Answer 11

no direct sternal attachment

Question 12

how many pairs of ribs are there?

Answer 12

12

Question 13

what are the typical ribs?

Answer 13

3-9

Question 14

what are the Atypical ribs?

Answer 14

1,2,11,12

Question 15

which ribs are floaters?

Answer 15

11 & 12

Question 16

maunbrium features?

Answer 16

jugular notch- loc: T3-T4

angle of louis (sternal angle) manubrium/sternum meet; 2nd rib attachment

Question 17

Sternum Aka? features?

Answer 17

gladiolus
body is located: T5-T9
costal notches form lateral borders

Question 18

Xiphoid process landmarks?

Answer 18

diaphragmatic surface of liver, inferior border of heart

Question 19

sacrum is made up of?

Answer 19

5 fused vertebrae- by age 25
Base- sacral promontory
Ala- lateral sides aka wings
sacral foramina- spinal nerves pass thru
APEX- art. with coccyx

Question 20

Cervical landmarks

Answer 20

C3- hyoid
C4- cornu of thyroid
C5- body of thyroid
C6- Cricoid cart.
C6- carotid tubeclr

Question 21

what are the boundaries of the IVF?

Answer 21

pedicle
facets
body
disc

Question 22

what are the shapes of VB in cervical? thoracic? lumbar?

Answer 22

Oval
Heart
Reniform (kidney bean)

Question 23

C1 sup art facet/ inf. art. facet orientation?

Answer 23

SAF- BUM

IAF- BMD

Question 24

C2 SAF/IAF orientation?

Answer 24

SAF-BUL

IAF- FoLD

Question 25

C3-C6 SAF/IAF orientation?

Answer 25

SAF-BUM

IAF- FoLD

Question 26

C7 SAF/IAF orientation?

Answer 26

SAF-BUM

IAF-FoLD

Question 27

T1-T11 SAF/IAF orientation?

Answer 27

SAF-BUL

IAF-FoLD

Question 28

T12 SAF/IAF orientation?

Answer 28

SAF- BUL

IAF- FoLD

Question 29

L1-L5 SAF/IAF orientation?

Answer 29

SAF_BUM

IAF- FoLD

Question 30

S1 SAF orientation?

Answer 30

SAF-BUM