Head and neck but better - bones (ty sameer) Flashcards

1
Q

what is the cranium divided into? Which is which?

A

neurocranium - brain area
viscerocranium - facial area

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2
Q

bones in neurocranium?

A

frontal
occipital
parietal
sphenoid
temporal

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3
Q

features on frontal bone?

A

supraorbital ridge (top of eye socket)
supraorbital foramen
glabella (middle depression between supraorbital ridges)
zygomatic process

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4
Q

features on occipital bone?

A

superior and inferior nuchal lines
occipital tuberance (between nuchal lines)
foramen magnum

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5
Q

features on temporal bone?

A

mastoid process (inferolateral)
zygomatic process
external acoustic meatus (ear canal)
styloid process

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6
Q

what type of joints are sutures

A

fibrous

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7
Q

which suture is between the frontal and parietal bones

A

coronal suture

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8
Q

which suture is between the two parietal bones

A

sagittal suture

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9
Q

which suture is between the two parietal bones and the occipital bone

A

lambdoid suture

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10
Q

what is the area where the frontal parietal, temporal and sphenoid bones join?
why is this clinically relevant?

A

pterion
weak spot, middle meningeal artery runs behind it

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11
Q

bones in the viscerocranium?

A

nasal
maxilla
zygomatic
vomer
inferior nasal conchae
lacrimal
palatine
mandible

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12
Q

maxilla features

A

infraorbital foramen
superior alveolar process (where teeth arise)

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13
Q

zygomatic bones features

A

frontal, temporal and maxillary processes

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14
Q

which bone lies in the midline of the nasal septum

A

vomer

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15
Q

lacrimal bone features?

A

bilateral, sits on medial part of orbit.

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16
Q

palatine bone features?

A

bilateral, part of hard palate and divides cavities

17
Q

mandible features?

A

condylar process (posterior)
coronoid process (anterior)
ramus
mental process
mental foramina

18
Q

what sections form the cranial fossa

A

anterior, middle, posterior fossa

19
Q

which lobes of the brain are primarily in each fossa

A

frontal in anterior
temporal in middle
occipital and cerebellum in posterior

20
Q

how many cranial nerves are there?

A

12

21
Q

what is found on the superior aspect of the ethmoid bone? which sits on top of this? Which nerves pass through?

A

cribriform plate
olfactory bulb
olfactory nerves

22
Q

which foramen is most anterior in the sphenoid bone and what passes through it

A

optic foramen/canal
optic nerve and ophthalmic artery

23
Q

what lies between the greater and lesser wings of the sphenoid bone? what passes through it?

A

superior orbital fissure
oculomotor nerve (C3)
trochlear nerve (C4)
ophthalmic nerve (branch of C5)
abducens nerve (C6)

24
Q

what is the name for the small foramen in the sphenoid bone inferior to the superior orbital fissure? what passes through it?

A

foramen rotundum
Maxillary branch of trigeminal nerve (C5)

25
Q

foramen posterior to foramen rotundum in the sphenoid bone? what passes through it?

A

foramen ovale
mandibular branch of trigeminal nerve (C5)

26
Q

small foramen lateral to foramen ovale? What passes through this?

A

foramen spinosum
middle meningeal artery and vein

27
Q

name for big hole in the temporal bone and what passes through it?

A

internal acoustic meatus
facial nerve (C7)
vestibulocochlear nerve (C8)

28
Q

where is the opening for the facial nerve? what is its name?

A

in-between styloid process and mastoid process on temporal bone
stylomastoid foramen

29
Q

which large foramen lies between the temporal and occipital bone? What passes through it?

A

jugular foramen
glossopharyngeal nerve (C9)
vagus nerve (C10)
spinal accessory nerve (C11)
internal jugular vein

30
Q

which foramen in the occipital bone is found lateral to foramen magnum? what passes through it?

A

hypoglossal canal
hypoglossal nerve (C12)

31
Q

what is the large central hole found in the occipital bone? what passes through it?

A

foramen magnum
spinal cord
meningeal branch of vertebral arteries

32
Q

which foramen is filled with cartilage and where is it found?

A

foramen lacerum
Middle cranial fossa, between sphenoid temporal and occipital bones