the bones of the skull

Question 1

how many bones compose the skull?

Answer 1

22

Question 2

what is protected by the bones that form the neurocranium?

Answer 2

the brain

Question 3

how many bones form the neurocranium?

Answer 3

8

Question 4

what do the bones of the facial skeleton and jaw form?

Answer 4

viscerocranium

Question 5

how many bones compose the viscerocranium

Answer 5

12-14

Question 6

what bone is part of the neurocranium and located centrally where the nose is?

Answer 6

ethmoid bone

Question 7

what bone is part of the neurocranium and located where the forehead is?

Answer 7

frontal bone

Question 8

what bone is part of the neurocranium and located on the top left and right side of the head?

Answer 8

parietal bone

Question 9

what bone is part of the neurocranium and located at the back of the skull?

Answer 9

occipital bone

Question 10

what bone is part of the neurocranium and located just above the year on either side?

Answer 10

temporal bone

Question 11

what bone is part of the neurocranium and transverses from the right to left side?

Answer 11

saphenoid bone

Question 12

what joint alligns the frontal bone with the right and left parietal bone?

Answer 12

coronal suture

Question 13

what is fused by the sagittal sututre?

Answer 13

fusion of the right and left parietal bones

Question 14

what suture fuses each parietal bone to the occipital bones (on either side)

Answer 14

lambdoid sututre

Question 15

what is the name of the point where the sagittal sutrure meets the lambdoid suture on the posterior skull?

Answer 15

lambda

Question 16

whats is the weakest point of the lateral skull? what is it composed of?

Answer 16

ptierion

Where sphenoid, frontal, parietal & temporal bones meet

Question 17

what is the other name given to identify the skull cap?

Answer 17

the calavria

Question 18

what are fontanelle?

Answer 18

soft sports in neonatal skulls

Question 19

when do fontanelles normally close?

Answer 19

within the first year of life

Question 20

how is the angle of the jaw in the neonatal skull?

Answer 20

obtuse angle

Question 21

how is the mastoid process in neonatal skull?

Answer 21

underdevelopped

Question 22

wht is the issue with the mastoid process in neonatal skulls?

Answer 22

due to it being underdeveloped, it may lead to fascial nerve palsy as the nerve is not protected by the process.
occurs in delivery with forcesp

Question 23

what bones of the skull are contained by the anterior cranial fossa?

Answer 23

• frontal bone
• ethmoid bone
• lesser wing of the saphenoid bone

Question 24

what bone contributes to the orbit plate ans serves as a roof for the eye socket?

Answer 24

frontal bone

Question 25

what does the ethmoid bone contribute to?

Answer 25

in majority it contributes to the nasal wall cavity and to the medial wall of the orbit

Question 26

what does the cribiform foramina allow the passage of?

Answer 26

the nerves to the nose

Question 27

what is the crista galli?

Answer 27

serves as a point of attachment to the meninges

Question 28

what part of the lesser wing of the saphenoid bone is part of the anterior cranial foramina?

Answer 28

the superior part

Question 29

what part of the ethmoid bone is located between the anterior cranial wall and the nasal cavity?

Answer 29

cribiform plate

Question 30

what bones compose the middle cranial fossa

Answer 30

saphenoid bone | temporal bones

Question 31

what part of the saphenoid bone is located where the pituitary gland sits?

Answer 31

hypophyseal f

Question 32

what part of the saphenoid bone is considered as the back (saddle) shape depression in the back of the saphenoid bone?

Answer 32

sella turcica

Question 33

what part of the themporal bone forms the lateral skull?

Answer 33

squamous

Question 34

how could the squamous be described?

Answer 34

as the flat portion of the temporal bone

Question 35

what forms the tympanic portion of the temporal bone and forms the external ear?

Answer 35

the squamous

Question 36

what part of the temporal bone contains part of the middle and inner ear

Answer 36

the pertrous portion

Question 37

how can the petrous portion of the temporal bone be described?

Answer 37

thicker, rocky looking bone

Question 38

what does the pterygoid process give rise to?

Answer 38

lateral and medial pterygoid processes

Question 39

where are the pterygoid processes found relative to the saphenoid bone?

Answer 39

on either side of it

Question 40

what are the foramen that form the middle cranial fossa?

Answer 40

foramen rotundum foramen ovale foramen spinosum

Question 41

through what foramen does the middle meningeal A pass through?

Answer 41

foramen spinosum

Question 42

what foramen serves as an opening for the cartoid canal

Answer 42

foramina lacerum

Question 43

what A passes through the cartoid canal and has a tortuous struture?

Answer 43

internal cartoid A

Question 44

what is the foramina that leads to the orbits?

Answer 44

optic canals

Question 45

what is the opening at the top of the orbit where the eyes sit ans through where nerves to get tot the eyes sit?

Answer 45

superior orbital fissuew

Question 46

what components form the posterior cranial foramen?

Answer 46

``` -petrous portion of the temporal bone occipital bone foramen magnum internal accoustic meatus -jugular foramen -hypoglosseal foramen ```

Question 47

what serves as the opening for the spinal cord in the posterior cranial forman?

Answer 47

foramen magnum

Question 48

Where do nerves responsible for hearing and balance enter the inner ear?

Answer 48

petrious portion of the temporal bone

Question 49

in what are the nerves responsible for hearing located?

Answer 49

internal accoustic meatus

Question 50

what components are found within the jugular forman?

Answer 50

internal jugular V and cranial N

Question 51

what is found in the hypoglosseal foramen?

Answer 51

nerves for the innervation of the tongue

Question 52

where does the styloid process of the skull originate from?

Answer 52

from the temporal bone

Question 53

what gives rise to the M/L pterygoid plates?

Answer 53

pterygoid process

Question 54

what bones form the hard palate?

Answer 54

palatine bones and the palatine process of the maxilla

Question 55

what structure transition into the lateral wall of the skull (squamous)?

Answer 55

petrous plate

Question 56

Into what does the cartoid Artery come in dives 90 degrees, passes through, another 90 degrees into foramen lacerum?

Answer 56

cartoid Canal

Question 57

what structure can be onserved only at the base of the skull and is found between the mastoid and styloid process?

Answer 57

sytlyomastoid forman

Question 58

what does the palatine process form?

Answer 58

the roof of the mouth

Question 59

what is the name of the bones that form the upper jaw found on the R/L sides?

Answer 59

maxilla

Question 60

what is the name given to the cheek bones?

Answer 60

zygomatic bones

Question 61

what is the zygomatic arch?

Answer 61

the Fusion of the temporal process of the zygomatic bone & the zygomatic process of the temporal bone

Question 62

what boney structure do the tear ducts travel through?

Answer 62

lacrimal bone

Question 63

what is the name given to the bone of the lower jaw?

Answer 63

mandible bone

Question 64

what is the name of the thickened ridge that provides socket for tooth in the mandible?

Answer 64

alveolar process

Question 65

what is formed by the vomer bone?

Answer 65

inferior nasal septum

Question 66

how many nasal bone(s) are there?

Answer 66

2

Question 67

what type of joint is the temporomandibular joint?

Answer 67

modified hinge joint

Question 68

what articulates in the temporomandibular joint?

Answer 68

o Head of the mandible articulates with the mandibular fossa in the temporal bone

Question 69

how is the temporomandibular joint reinforced?

Answer 69

by lateral ligaments

Question 70

how is the mandible head positioned when the temporomandibular joint is in closed position?

Answer 70

the head is in the mandibular fossa

Question 71

how is the mandible head positioned when the temporomandibular joint is in open position?

Answer 71

depression of the mandible causes the mandible head to shift forward and rest on the atricular tubercle