1b. Skull HAL - Worksheet & Radiology Flashcards
1
Q
what is the skull a term used to denote
A
denotes the cranium
2
Q
what is the cranium made uo of
A
facial bones and bones of cranial cavity and mandible
3
Q
is the frontal bone paired
why/why not
A
no
paired in fetus due to metopic suture but fused in adult
4
Q
is the temporal bone paired
A
paired
5
Q
is the occipital bone paired
A
no
6
Q
is the sphenoid bone paired
A
no
7
Q
is the ethmoid bone paired
A
no
8
Q
is the maxilla bone paired
why/why not
A
due to maxillary suture
9
Q
is the parietal bone paired
why/why not
A
paired
due to sagittal suture
10
Q
is the palatine bone paired
A
paired
11
Q
is the zygoma bone paired
A
paired
12
Q
is the nasal bone paired
why/why not
A
paired
due to suture
13
Q
is the lacrimal bone paired
A
paired
14
Q
is the vomer bone paired
A
unpaired
15
Q
is the inferior nasal concha bone paired
A
paired
16
Q
what 7 bones are definitely seen in the anterior view of the skull
what 3 are partially seen in the anterior view
A
frontal sphenoid nasal vomer maxilla zygoma mandible
a little: lacrimal, temporal, parietal
17
Q
what 9 bones are definitely seen in the lateral view of the skull
which bone is partially seen in the lateral view
A
temporal occipital frontal zygomatic nasal maxilla lacrimal mandible sphenoid greater wing
little bit of ethmoid in the orbit
18
Q
what 5 bones are definitely seen in the posterior view of the skull
A
occipital parietal temporal maxilla mandible
19
Q
what 7 bones are definitely seen in the inferior view of the skull
A
occipital temporal sphenoid vomer palatine maxilla zygoma
20
Q
what bones does the coronal suture divide
A
frontal from both the parietals
21
Q
what bones does the sagittal suture divide
A
both the parietals
22
Q
what bones does the lamboid suture divide
A
occipital from both parietals
23
Q
what bones does the squamous suture divide
A
temporal from parietal on each side
24
Q
is there a suture line between the sphenoid and frontal bones
A
no
25
where is the glabella located on the head
most anterior midline point on the frontal bone
above frontonasal suture
26
where is the nasion located on the head
midline point where the 2 nasal bones and the frontal bone intersect
27
where is the acanthion located on the head
tip of the anterior nasal spine
28
where is the external occipital protuberance located on the head
what is it also known as
on the occipital bone
aka: inion
29
where is the vertex located on the head
most superior point of cranium
little bit posterior to bregma
30
what is the bregma
where coronal and sagittal sutures meet
31
where is the foramen magnum located on the head
what structures are either side of the foramen magnum and what do they do
on occipital bone
condyles articulate with the C1 vertebrae/atlas
32
where is the external auditory meatus located on the head
temporal bone
33
where is the mastoid process located on the head
what does it serves as
temporal bone
attaches muscles of neck
34
where is the styloid process located on the head
temporal bone
35
where is the zygomatic arch located on the head
formed by zygomatic and temporal bones
36
where is the lateral canthus of eye located on the head
on the skull slightly medially to the most lateral part of the orbital margin (ectochonion)
outer corner of eye
37
where is the nasal septum located on the head
inside nasal cavity
38
where is the condyle of mandible located on the head
what joint does it form
mandible bone
forms temporomandibular joint with temporal bone
39
where is the angle of mandible located on the head
what is it also known as
on mandible (angled part on the side of the jaw)
gonion
40
where is the mental protuberance located on the head
mandible
point of chin anteriorly
41
what are the 3 portions of the interior aspect of the cranium
anterior/middle/posterior cranial fossa
42
what 3 bones make up the anterior fossa
frontal
ethmoid
sphenoid lesser wing
43
what 2 bones make up the middle fossa
sphenoid (except lesser wing)
| temporal bone
44
what 2 bones make up the posterior fossa
temporal (posterior part of petrous pyramid)
| occipital bone
45
were is the crista galli located in terms of the bone its part of and which cranial fossa it resides in
ethmoid
anterior fossa
46
were is the lesser wing of sphenoid located in terms of the bone its part of and which cranial fossa it resides in
sphenoid
anterior fossa
47
were is the greater wing of sphenoid located in terms of the bone its part of and which cranial fossa it resides in
sphenoid
middle fossa
48
were is the sella turcica located in terms of the bone its part of and which cranial fossa it resides in
what else is it known as
sphenoid
middle fossa
aka: pituitary/hypothalamus fossa
49
were is the anterior and posterior clinoid process located in terms of the bone its part of and which cranial fossa it resides in
sphenoid
middle fossa
50
were is the dorsum sellae located in terms of the bone its part of and which cranial fossa it resides in
sphenoid
middle fossa but arguable in posterior fossa too
51
were is the petrous pyramid located in terms of the bone its part of and which cranial fossa it resides in
temporal bone
both middle and posterior fossa as the petrous ridge denotes the boundary
52
were is the petrous ridge located in terms of the bone its part of and which cranial fossa it resides in
temporal bone petrous pyramid
boundary of middle and posterior fossa
53
what does the petrous pyramid house
in terms of ear and nerves/vessels
middle and internal ears
conduit for internal carotid artery and cranial nerves 7&8
54
were is the internal acoustic meatus located in terms of the bone its part of and which cranial fossa it resides in
temporal bone petrous pyramid
posterior fossa
55
were is the clivus located in terms of the bone its part of and which cranial fossa it resides in
occipital bone (base)
posterior fossa
56
what are the 4 paranasal sinuses
frontal
maxillary
ethmoid
sphenoid
57
what are the ethmoid sinuses divided into
anterior, middle and posterior ethmoid air cells
58
what divides the sphenoid sinus into the pair
septum
59
what does the optic canal transmit
cranial nerve 2
opthalmic artery
60
what does the superior orbital fissure transmit
structures passing to/from orbit and face surrounding the orbit
cranial nerves 3-6 (occulomotor, trochlear, trigeminal and abducens)
61
what does the interior orbital fissure transmit
structures passing to/from the orbit and the face surrounding the orbit including branches of the cranial nerve 5 - trigeminal
62
what does the foramen rotundum transmit
maxillary division of cranial nerve 5 - trigeminal
63
what does the foramen ovale transmit
mandibular division of cranial nerve 5 - trigeminal
64
what does the foramen spinosum transmit
middle meningeal artery
65
what does the foramen lacerum transmit
internal carotid artery into cranial cavity through its inner half
66
what does the jugular foramen transmit
cranial nerves 9-11 (glossopharyngeal, vagus and accessory)
internal jugular vein
67
what does the carotid canal transmit
what does it continue into
internal carotid artery
continues into the foramen lacerum
68
what is the relation between the position of the foramen lacerum and carotid canal
F. lacerum passes obliquely through carotid canal
69
which bone/cranial fossa is the optic canal located in
border of anterior/middle fossa
middle of sphenoid bone
70
which bone/cranial fossa is the superior orbital fissure located in
middle fossa
lower edge of greater wing of sphenoid
71
which bone/cranial fossa is the internal orbital fissure located in
in orbits
72
which bone/cranial fossa is the foramen rotundum located in
middle fossa
where the sphenoid greater wing and middle body join
73
which bone/cranial fossa is the foramen ovale located in
middle fossa
lower point of greater wing of sphenoid
74
which bone/cranial fossa is the foramen lacerum located in
border of middle/posterior fossa
lower edge of where sphenoid greater wing and body join
75
which bone/cranial fossa is the foramen spinosum located in
middle fossa
| lower point of greater wing of sphenoid
lower than foramen ovale
76
which bone/cranial fossa is the jugular foramen located in
posterior fossa
middle of edge between petrous ridge of temporal bone and occipital bone
77
which bone/cranial fossa is the carotid canal located in
border of middle/posterior fossa
lower edge of where sphenoid greater wing and body join
(same as foramen lacerum)
