Bones and Joints of Neck and Head Pt. 2

Question 1

Cranial Base has what 2 parts of occipital bone PLUS what else

Answer 1

basilar + condylar

petrous part of temporal bone and sphenoid bone

Question 2

Cranial base transmits what

Answer 2

neurovasculature to/from intracranial cavity

Question 3

what neruovasculature does the cranial base transmit (6)

Answer 3

foramen ovale
foramen spinosum
stylomastoid foramen
jugular foramen
carotid foramen/opening to caroid canal
foramen magnum

Question 4

Endocranical Cavity- Anterior Cranial Fossa has what 4 parts

Answer 4

-Orbial plates of frontal bone
Cribiform plate of ethmoid
Crista galli of ethmoid (meminges)
Lesser wings and body of sphenoid

Question 5

Middle Cranial Fossa has what 5 things

Answer 5

• Greater and lesser wings
• Sella tunica- body of sphenoid + pituitary gland
• temporal bone
• pariteal bone
• foramina

Question 6

Foramina of the middle cranial fossa has what 6 things

Answer 6

• optic canal
• superior orbital fissure
• f. rotundum
• f. ovale
• f. spinosum
• f. lacerum

Question 7

Posterior Cranial Fossa has what 4 things

Answer 7

• pestrous part of temporal bone
• parietal bone
• occipital bone
• foramina

Question 8

Foramina of posterior cranial fossa as what 3 things

Answer 8

• interal acoustic meatus
• jugular f.
• hypoglossal canal

Question 9

body of sphenoid is made up of

Answer 9

anterior and middle cranial fossae

Question 10

body of sphenoid has what 4 things

Answer 10

optic groove, sella turcica, clinoid processes, and dorsum sallae

Question 11

Clinoid processes ant vs post part

Answer 11

• endocranial termination of carotid canal

- attachment for tentorium cerebelli (meninges)

Question 12

Lesser wing of sphenoid has

Answer 12

optic canal

Question 13

Greater wing of sphenoid has what 4 things?

Answer 13

• superior orbital fissure
• foramen rotundum
• foramen ovale
• foramen spinosum

Question 14

pterygoid proccess

lateral vs. medial

Answer 14

• attachment for medial and lateral pterygoid muscles

- makes pterygoid hamulus (hook) for the tendon of the tensor veli palatine .

Question 15

4 parts of temporal bone

Answer 15

1. squamous- part of cranial vault
2. mastoid
3. tympanic- external auditory meatus, middle ear
4. Petrous portion

Question 16

3 parts of petrous portion

Answer 16

• inner ear
• internal acoustic meatus
• facial and carotid canals

Question 17

3 parts of occipital bone

Answer 17

1. squamous part- cranial vault and attachment for nuchal musculature
2. lateral parts (exoccipital) (atlantas occipital joint)
   - condyles to articulate with the atlas (C1 Vertebra)
3. Basilar part- basioccipital- cranial base

Question 18

Where is the sphenoid bone (greater wings)

Answer 18

behind eyes

Question 19

Temporal bone has what two things

Answer 19

Compact bone- inner and outer tables

and spongy dipole- in the middle

Question 20

Emissary veins are

Answer 20

external veins that drain through diploic veins to internal dursal sinuses

Question 21

Route of infection from scalp into cranial cavity (outside of skull to inside)

Answer 21

emissary veins

Question 22

Temporal bones are connected by

Answer 22

Sutures

Question 23

What are the 2 types of sutures that fibrous joints are connected by

Answer 23

sharpey’s fibers (collagen type 3)

Sutural Wormian bones- small irregular bones that develop within structures

Question 24

what are the 5 cranial sutures

Answer 24

Coronal
Lambdoid
Metopic
Sagittal
Squamosal

Question 25

Between what Coronal Lambdoid Metopic

Answer 25

- frontal and parietal - occipital and parietal - frontal bones; fuses @ 9 months

Question 26

Between what Sagittal Squamosal

Answer 26

- parietal bones | - temporal and parietal

Question 27

Fontanelles are

Answer 27

soft spots

Question 28

``` Fontanelles- ages posterior sphenoidal mastoid anterior ```

Answer 28

- 2. months - 6 months - 18 months - 24 months

Question 29

Pterion is the junction of (4 things)

Answer 29

greater wing of sphenoid, squamous temporal, frontal and parietal bones

Question 30

what overlies anterior division of middle meningeal artery

Answer 30

Pterion

Question 31

What is the weak point and if hurt cause epidural hematomas

Answer 31

Pterion

Question 32

Point on calvaria at junction of lambdoid and ___

Answer 32

Lambda | Sagittal sutures

Question 33

Between coronal and sagittal sutures

Answer 33

Bregma

Question 34

Superior point of neruocranium

Answer 34

Vertex

Question 35

Vertex is in middle with ___ oriented in anatomical (___ or ___) plane

Answer 35

carnium | orbitometal or frankfort

Question 36

Star shaped

Answer 36

Asterion

Question 37

Asterion is between what 3

Answer 37

Parietomastoid Occipitomastoid Lambdoid

Question 38

Smooth

Answer 38

Glabella

Question 39

Mostly in males

Answer 39

Glabella

Question 40

Glabella is frontal bone superior to ___ | Most anterior projecting part of ___

Answer 40

root of nose | forehead

Question 41

Most prominent point of external occipital protuberane

Answer 41

Inion

Question 42

The Point on cranium where ____ and ____sutures meet (what is it called)

Answer 42

frontonasal and internasal (nasion)