Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

SHB > Skull > Flashcards

Skull Flashcards

1
Q

What are the two main subdivisions of the skull?

A

Cranium and mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the 5 external views (normas) of the skull?

A

1) frontalis
2) laterialis
3) occipitalis
4) verticalis
5) basalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 2 internal surface views of the skull?

A

Inner surface of skull cap

cranial cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the 4 bones of the norma verticalis?

A

frontal
2 parietal
occipital

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the sutures of of the normal veticalis?

A

coronal
sagittal
lamboid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is bregma?

A

Meeting of coronal and sagittal sutures

site of anterior fontenelle

should close 1 finger each month until 2 years

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is lambda?

A

Meeting of the lambdoid and sagittal sutures

site of posterior fontenelle

should close at 3 months

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a fontenelle?

A

Soft spot of skull

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the features of the inner surface skull cap?

A

4 bones: frontal, 2 parietal, occipital

sagittal sulcus (boney groove for superior sagittal sinus)

granular foveolae (depressions from arachnoid granulations)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the norma occipitalis?

A

formed from occipital bone, mastoid part of temporal bones and part of parietal bones

has external occipital protubverance and crest for trapezius and ligamentum nuchae

nuchal lines for suboccipital muscles and deep back muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is normal frontalis?

A 
frontal bone
2 nasal bones
bony orbit
2 zygomatic bones 
2 maxillary bones
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is supraorbital foramen?

A

carries supraorbital nerve and vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is superior orbital fissure?

A

carries CN III, IV, V1, VI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is optic canal?

A

carries optic nerve and opthalimic artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is inferior orbital fissure?

A

carries maxillary nerve, infraorbital vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is infraorbital foramen?

A

carries infraorbital nerve and vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what is mental foramen?

A

in the mandible and carries mental nerve and vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is normal lateralis?

A 
formed from temporal bone
zygomatic bone
greater wing of sphenoid bone
maxillary bone
frontal 
parietal
occipital
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what is the temporal fossa?

A

superiorly: temporal line
inferiorly: zygomatic arch
Floor: pterion

20
Q

What is the pterion?

A

H shaped structure
formed from 4 bones
frontal, parietal, temporal, greater wing of sphenoid

4 cm above zygomatic arch

on top of middle meningeal artery

21
Q

What causes an epidural hematoma?

A

Injury that ruptures the middle meningeal artery and its branches

it runs close to the bone/superficial/ prone to injury. near pterion

go to ER because the swelling can compress the motor area of the brain- contralateral hemiplasia

22
Q

What is the zygomatic arch?

A

formed by temporal process of zygomatic bone and zygomatic process of temporal bone

23
Q

What are the three processes of the zygomatic bone?

A

1) temporal
2) maxilla
3) frontal

24
Q

What are the three fossas of the normal lateralis?

A

temporal
infratemporal
pterygopalatine (fissure between maxilla and pterygoid)

25
Q

What are the three fossa of the cranial cavity?

A

anterior middle posterior

3 steps from low (posterior) to high (anterior)

26
Q

What is the median projection of the cribriform of the ethmoid bone?

A

crista galli

separated from frontal crest by foramen caecum

27
Q

What is the median projection from the posterior border of the lesser wing of sphenoid?

A

Anterior clinoid process

28
Q

What is the optic canal?

A

located medial to the anterior clinoid process

carries optic nerve and ophthalimic artery

29
Q

What is the optic chiasma?

A

connects both optic nerves

located in the optic groove (sulcus chiasmaticus)

30
Q

Where can you see the lesser wing of the sphenoid?

A

From the inside only

31
Q

What is the sella turcica?

A

middle of middle cranial fossa formed by body of sphenoid

behind the optic groove

pituitary gland with stalk connected to brain sits here

32
Q

What could happen if you get a tumor near the caverna sinus?

A

near the caverna sinus there are many CNs going in lateral wall

might affect pitutary of nerve near by if there is a tumor

pituitary close to optic groove with optic chiasma with optic nerve so tumor could cause

BLINDNESS

33
Q

What are the 3 parts of the sella turcica?

A 
anterior slope (tuberculum sellae)
median groove (hypophyseal fossa)
posterior elevated part (dorsum sellae)
34
Q

What does the superior orbital fissure transmit?

A

CN 3, 4, 5, 1, 6

inferior boundary formed by greater wing of sphenoid

35
Q

What are the 3 foramina of the greater wing of sphenoid?

A

Formamen rotundum- maxillary neve V2
Foramen ovale- mandibular nerve V3
Foramen spinosum- middle meningeal artery

36
Q

What are the 3 parts of trigeminal nerve?

A

1) V1 opthalmic- superior orbital
2) V2 maxillary- for rotundum
3) V3 mandibular- for ovale

37
Q

where does the internal carotid pass?

A

goes through carotid canal with opening in cranial cavity= foramen laserum

No branches in the neck

caverna sinus - arterial blood in venus blood

38
Q

What is the large hole in the middle floor of the posterior cranial fossa?

A

Foramen magnum

39
Q

What is the basalar part of the occiptal bone that slopes upwards?

A

Clivus

40
Q

What are the 3 important foramem of the posterior cranial fossa?

A

Internal auditory meatus- CN 7 and 8
Jugular- CN9, 10, 11
Hypoglassal canal- CN12

41
Q

Which foramen is closest to the foramen magnum?

A

Hypoglossal canal
Jugular
Internal acoustic

42
Q

What is the slope behind the foramen magnum?

A

Internal occipital crest

43
Q

How does the brain drain?

A

Transverse sinus
sigmoid sinus
internal juglar
right atrium

44
Q

What are the emissary veins to the face?

A

caverta sius

45
Q

What is in the optic canal?

A

optic nerve and opthalmic artery

SHB (22 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions