Skull Anatomy L1 Word Scramble
![]() P E D H N S O I
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
List the 8 bones that form the Carium | frontal, ethmoid, 2 parietal, 2 temporal, occipital, sphenoid |
frontal bone location | forehead |
occipital bone location | posterior base of skull |
What is the densest structure of the skull and this is the largest fifference in skull shape/type | the Petrous Ridges |
Superior rim of orbit | supraorbital margin |
On the either side of Cribiform plate, forms the medial walls of the orbit and lateral walls of the nasal cavity | Lateral masses/labyrinths |
Small lateral processes at outer rim of superior orbit which articulate w/ the Zygoma | Zygomatic proccesses |
Sponge like, cube shaped bone between two orbits | Ethmoid |
there is a __degree difference between the orbitomeatal line and infraorbitomeatal line | 7 degree difference |
location of zygomatic | cheek bones |
which bones form the lateral wall of cranium | parital and temporal |
3 auditory ossicles in each ear are | malleus(hammer), Incus(anvil), Stapes(stirrup) |
cartiliginous flap of ear | auricle/pinna |
Line form the outer canthus of the eye to the EAM___also referred to as ____also as_____ | orbitomeatal line/radiographic baseline/ canthomeatal line |
Pacchionian Bodies are | depressions for arachnoid granulations near the sagittl suture |
Four portions of Ethmoid are | Cribiform Plate, Perpendicular Plate, LAteral masses/Labyrnths, Nasal Conchae |
hyoid bone extends off from______ of the _____bone | styloid process, temporal |
The 7 minor sutures include | asterion, pterion, frontozygomatico, zygomaticotemporal, frontomaxillaris, zygomatico-maxillaris, frontonasal |
What are the two portions of the frontal bone | Squamous/vertical portion:forehead Horizontal:roof of the orbits |
Describe the Dolichocephalic Skull | narrow, internal structure lower, denser skull so small increase in exp. factors. 40 degrees MSP |
Rounded bumps on lateral aspect of each parietal bone | parietal eminence |
The MIDDLE ear, the auditory ossicles which is part of the_____bone | temporal |
The space between the Orbital Plates of the Frontal Bone is called the | Ethmoid notch |
Depressions above the supercilliary arches | supraorbital groove |
external opening to the ear | EAM external auditory meatus |
location of nasal bones | on top of nose |
Sulci | large channels or ditches which lodge blood vessels |
which bones form the roof/vortex | frontal and parital bones |
TEA | top of ear attachment |
Mesocephailc is __cm at it widest point, __cm at its longest point and__cm at its deepest | 15cm, 19cm, 23 cm |
4 bones that are classified as flat bones | frontal bones, 2 parietal bones, and occipital bones |
medial junction of the eyelids | inner canthus |
wherever maxilla goes....______goes. they are the only bones that form the oro,naso,orbital cavity | palatine goes |
what bone forms the posterior wall | occipital |
Bumpin the center of te chin | mental point |
Lateral junction of the eyelids | outer canthus |
junction of the nose and upper lip | Acanthion |
smooth rounded prominence between eyebrows | Glabella |
The Etmoid Sinuses are located in the | Lateral Masses/Labyrinths |
How many bones form the cranium/calvarium/cranial cavity | 8 bones |
there is a __degree difference between the orbitomeatal line(OML) and the Glabellomeatal line | 8 degree, know cuz some patients cant tip their head down |
The three layers that form the flat bones are | outer/compact, middle/cancellous(diploe), inner/compact |
The sutures of the skull are classified as_______and allow____movement | synarthroidal,no |
Describe the Brachycephalic and angle | short front to back, wide side to side, MSP 54 degrees |
2 parietal bone locations | lateral superior sides of cranium |
List the four angles of the Parietal Bones | Bregma-Frontal Angle(sag meets coronal suture), Lambda-Occipital Angle(sag meets lambdoidal suture), Mastoid Angle(parietals meet mastoid portion of temp. bone), Sphenoid Angle(parietals meet greater wing of sphenoid) |
Name the 5 regions/house of the skull | frontal/anterior, lateral walls, roof/vortex, posterior wall, base/floor |
The purpose of the Turbinates is to | warm/filter external air |
bump of knowledge | INION,bump on posterior surface of occipital bone also called External Occipital Protuberance, Bump of Knowledge and Inion |
Irregular Bones cranial bones include | sphenoid(butterfly), ethmoid(little projection), 2 temporal bones(project off wings of butterfly) |
2 inferior nasal conaches | curly cue-scrolls inferior aspect nasal cavity |
The major 4 sutures of the skull are | sagittal, coronal, squamosal, lambdoidal |
line connecting Acanthion and EAM | Acanthiomeatal line |
this allows the head to overlap during child birth | fontanelles |
vomer location | divides nose into two chambers |
The two primary fontanelles are____&_____ | Anterior/Bregma and Posterior/Lambda |
ridge of bone covered by the eyebrow | superciliary arch |
Which 4 bones form the base of the skull | occipital, sphenoid, 2 temporal bones |
Bones of the skull begin as rod-like groups of cells called | notochord |
The two parietal bones join together to form | the sagittal suture |
Inner surface of parietal bone is concave and has small grooves called____which are for_____ | meningeal grooves, meninggeal vessels |
ridge of bone that corresponds to position of eyebrows | supercilliary arch |
Thin plates of bone which form the superior/roof of each orbit of the frotal bone | Orbital/Horizontal Plates |
Two rounded elevations on external bone on either side of MSP | frontal eminences |
How many bones form the facial/Visceral skeleton | 14 bones |
Meningeal grooves | inner surface of flat bone forming the cranium, narrow branch-like grooves |
The petrous ridges lie at the level of | top of ear attachment |
Parietal Bones | 2 square shaped bones, forms the posterior and and superior roof of the cranium |
Scroll like processes on the walls of the lateral masses | nasal concahes |
small pointed process which articulates w/ethmoid to help form a small portion of the Bony Nasal Septum | Nsal Spine |
ridge of bone that forms the superior rim of orbits | SOM supraorbital margin |
bridge of nose, where nasal bone articulates with the frontal bone | Nasion |
The_____of the_____and the_____ form the bony nasal septum | perpendicular plate, ethmoid, vomer |
The perforated portion of Ethmoid for transmission of the Olfactory nerves is called the | Cribiform Plate |
2 palatines | upper roof of mout, superoposterior portion of hard palate in oral cavity and portions of posterior nasal and orbital cavities |
Radiographic Baseline_____(we use this the most)Also referred to as_____ | Infraorbitalmeatal line (IOML) Reids Baseline |
List the four borders of the parietal bones | sagittal border, frontal border, occipital border, squamous border |
sphenoid bone location | anterior and middle section of base of skull |
The widest portion of the skul lies between | Parietal Eminences |
Frontal Sinuses are located | one on either side of the MSP, creating a sinus cavity in the vertical/squamous portion of the frontal bone |
ethmoid bone location | in superior nasal cavity |
hydrocephalus | frontanelle bulge from increased fluid |
Inferior rim of orbit | infraorbital margin |
The bones of the cranium form by_____while the facial forms by_____ | interosseous, endochondrial |
Line connecting the pupils of the eye | Interpupillary line ( level of Nasion) |
anterior wall/frontal wall formed by | frontal bone |
fontanellesare replaced as bone and eventually form_______ | sutures |
The angle of the Petrous Ridges on Mesocephailc | 45-47 MSP degrees |
What are the three general skull classifications | Mesocephalic(caucasian), Bracheycephalic(asian) Dolichocephailc(african) |
The two vertical projections on the Ethmoid are | Cribiform and Peroendicular Plate |
Lip like structure in from of EAM | tragus |
Bump on the temporal bone posterior to EAM | Mastoid Process |
opening for nerves and arteries in frontal bone | supraorbital notch/foramen |
name the 14 bones which for the facial skeleton | 2 maxillary, 2 lacrimal, 2 nasal, 2 zygomatic, 2 inferior nasal conache, 2 palatines, manidible and vomer |
Angle of the Mandible | Gonion(where horizontal portion of mandible ascends vertically) |
mandible | lower jaw |
A superior vertical projection on cribiform which resembles a roosters comb is ___, this is an attachment site for____ | Crista Galli, Flax Cerebri(fold of dura mater) |
Nasal conchaes are collectively called | Turbinates |
location of 2 maxillary bones | upper jaw and nasal/lower cheek area) |
line connecting Glabella and EAM | Glabellomeatal line |
middle layer of flat bone | diploe |
what are all the names for the skull | brain case/ cranial cavity/ calvarian/ cranium |
location of lacrimals | inside of eye/tear duct |
what are all the names for the facial skeleton | facial skeleton/ visceral skeleton |
Created by:
alymadi
Popular Radiology sets