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Anatomy Dissection > Ch 12 Scalp and Cranial Cavity > Flashcards

Ch 12 Scalp and Cranial Cavity Flashcards

1
Q

The scalp consists of _ layers of _ tissue that cover the calvaria

A

5, soft

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2
Q

The 5 layers of the scalp are:

A

-skin
-close subCUTANEOUS tissse
-aponeurosis OF 2 MUSCLES
-loose subAPONEUROTIC tissue
-pericranium

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3
Q

The _ 3 layers of the scalp are collectively called the _ _ and are clinically seen as a single layer as they come off together in incidents

A

external, scalp proper

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4
Q

Layer 1 of the scalp is _, containing _ and _ _.

A

skin; contains hair and sebaceous glands

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5
Q

Layer 2 of the scalp is _ _ _ which is connective tissue containing _ and _.

A

close subcutaneous tissue
vasculature and nerves

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6
Q

Layer 3 of the scalp is the flat tendon know as the_ AKA the _ _ AKA the _.

A

Layer 3, 3 names

Gee
Enough
Already

aponeurosis, galea aponeurotica, epicranium

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7
Q

“galea”=

A

helmet

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8
Q

The aponeurosis of the scalp is found between the _ muscle anteriorly and the _ muscle posteriorly.

A

frontalis, occipitalis

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9
Q

Layer 4 of the scalp is the _ _ _ and allows for free movement of the scalp proper.

A

loose subaponeurotic tissue

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10
Q

The subaponeurotic tissue is also connective tissue that contains space for potential _ or _ to spread easily

A

blood or pus (nasty)

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11
Q

The subaponeurotic tissue is AKA the danger layer because of the _ _ that connect to the _ _ which can lead to the spread of infection from this layer to the cranium

A

emissary veins, dural sinuses

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12
Q

Layer 5 of the scalp is the _ which is firmly anchored to the _ surface of the skull and is AKA the _ of the skull.

A

pericranium, external, periosteum of the skull

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13
Q

3 layers of the cranial bone:

A

-external layer AKA outer table
-middle layer AKA diploË(2 dots, son)
-internal layer AKA inner table

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14
Q

The external surface of the outer table of the cranial bone is the _ AKA _ which is the 5th layer of the scalp

A

periosteum AKA pericranium

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15
Q

Both the external layer or _ _ and internal layer or _ _ of the cranial bone are made of _ bone.

A

outer table, inner table, COMPACT BONE

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16
Q

The diploË which is the _ layer of the cranial bone is made of _ bone.

A

middle, SPONGY

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17
Q

The thickest cranial bones are the _ and _ bones.

A

occipital and frontal

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18
Q

The thinnest cranial bone is the _ bone.

A

temporal

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19
Q

Lining the inner table of the cranial bone is _ AKA _ which is the outer layer of the _.

A

endosteum AKA endocranium, dura

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20
Q

The scalp’s blood supply comes from vessels below, including branches of the _ _ and the _ _ arteries.

A

external carotid and the internal carotid arteries

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21
Q

Many blood vessels anastomose freely in the 2nd layer of the scalp, AKA _ _ _

A

close subcutaneous tissue

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22
Q

The frontal region of the scalp are supplied by branches of the _ carotid arteries.

A

internal

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23
Q

The _ and _ regions of the scalp are supplied by branches of the external carotid arteries

A

temporal and occipital

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24
Q

Venae Comitantes arrangement=

A

2 veins lie on either side of an artery

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25
Q

True or false: Veins of the scalp accompany arteries in venae comitantes arrangements and share the same names as their paired arteries.

A

true

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26
Q

The scalp is innervated anterior to the external ear via:

A

-the 3 divisions of the trigeminal nerve
-cranial nerve V: oPHTHalmic, maxillary, and mandibular

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27
Q

The scalp is innervated posterior to the external ear via:

A

cervical spinal nerves

28
Q

2 layers of the dura: (3 names for the first item :( )

A

-meningeal dura
-endosteal dura / endosteum / endocranium

Men Eventually End Everything

29
Q

Both layers of the dura in the head adhere to each other except at a few specific areas, the separated spots are called _ _.

A

Dural Sinuses

30
Q

Dural Sinuses contain _ and absorbed _ AKA _.

A

blood and absorbed cerebrospinal fluid AKA CSF

DONT FORGET TO SPELL THIS OUT ON EXAM :)

31
Q

The inner layer of the cranial dura folds internally at 4 folds:

A

-falx cerebri
-tentorium cerebelli
-falx cerebelli
-diaphragma sellae

32
Q

“falx”=

A

sickle

33
Q

“tentorium”=

A

tent

34
Q

Both the falx cerebri and falx cerebelli within the dura are shaped like _.

A

sickles

35
Q

The falx cerebri within the dura separates the _ part of the right and left sides of the _

A

superior, cereBRUM

36
Q

The falx cerebri within the dura is attached anteriorly to the _ _ and posteriorly to the _ _ at the level of the _ occipital protuberance.

A

crista galli, tentorium cerebelli, internal

37
Q

The tentorium cerebelli within the dura forms a tent over the _.

A

cereBELLUM

38
Q

The _ _ is inferior to the tentorium cerebelli within the dura and it separates the right and left _ _.

A

falx cerebelli, cereBELLAR hemispheres

39
Q

The diaphragma sellae within the dura is:

A

a small circular horizontal sheet of dura

40
Q

The diaphragma sellae forms a roof over the hypophyseal fossa within the _ _, which is pierced by the hypophyseal _ AKA _.

A

sella turcica, hypophyseal stalk AKA INFUNDIBULUM

41
Q

The vessel the cranial dura is supplied by is the _ _ _.

A

Middle Meningeal Artery

42
Q

The middle meningeal artery branches off the _ artery coming off the _ _ artery and courses external to the dura mater.

A

maxillary, external carotid

MMA-MA-ECA

43
Q

The inner surface of the calvaria contains indentations from the following vessels:

A

MMA middle meningeal
MA maxillary
ECA external carotid

44
Q

Where 2 layers of the dura separate is called a _.

A

sinus

45
Q

Dural sinuses contain a vein lined with _ that is NOT collapsible.

A

endothelium

46
Q

The dural sinuses drain all _ and _ from the brain and flow to the _ _ _.

A

blood and CSF, internal jugular vein

47
Q

The superior sagittal sinus lies in the medial plane on the _ part of the falx _.

A

superior, cereBRI

48
Q

The superior sagittal sinus is connected to the _ and _ veins and the lateral expansions of the superior sagittal sinus called the lateral _.

A

diploic, cerebral, lacunae

49
Q

The superior sagittal sinus drains _ into the confluence of the dural sinuses.

A

posteriorly

50
Q

The _ _ sinus lies in the medial plane on the inferior part of the falx cerebri.

A

inferior sagittal sinus

51
Q

The inferior sagittal sinus drains inferiorly into the _ sinus.

A

straight

52
Q

The _ sinus is found at the junction of the falx cereBRI and the tentorium cerebelli

A

straight

53
Q

The straight sinus receives blood from the _ _ sinus and _ veins and drains _ into the confluence of the sinuses.

A

inferior sagittal sinus, cereBRAL veins, posteriorly

54
Q

The transverse sinuses begin at the confluence and course _.

A

laterally

55
Q

The transverse sinuses are found within the external border of the _ _ and passes _ toward the petrous portion of the temporal bone to the _ sinus

A

tentorium cerebelli, anteriorly, sigmoid

56
Q

The sigmoid sinus extends from transverse sinus coursing along the _ _ inside the skull to the _ foramen where it continues in the neck as the _ _vein.

A

petrous portion, jugular foramen, internal jugular vein

57
Q

2 caveronous sinuses are found lateral to the _ _ on each side.

A

sella turcica

58
Q

Circle of WIllis=

A

Cerebral Arterial Circle

59
Q

The circle of willis AKA cerebral arterial circle sits between the right and left _ _ arteries and the right and left _ arteries.

A

internal carotid arteries, vertebral arteries

60
Q

The internal carotid artery ascends and branches into the _ _ artery and the _ _ artery

A

anterior cerebral and middle cerebral

61
Q

The anterior cerebral artery courses within the _ _ of the cerebrum.

A

longitudinal fissure

62
Q

The middle cerebral artery courses within the _ _ of the cerebrum

A

lateral fissure

63
Q

The _ artery branches off from the subclavian artery and travels up through the transverse foramina of CV6-CV1.

A

vertebral

64
Q

From the transverse foramina of CV6-CV1, the vertebral artery passes through the foramen magnum, joining with the vertebral artery on the other side to form the _ artery.

A

basilar

65
Q

The basilar artery courses along the groove on the _ and divides into 2 _ _ arteries.

A

pons, posterior cerebral

66
Q

The actual circle part of circle of willis AKA cerebral arterial circle is formed by (6 different types of arteries):

A

BIPPAA, 2 cerebral, 2 communicating
-basilar
-internal carotid artery
-posterior cerebral arteries
-posterior communicating arteries
-anterior cerebral arteries
-anterior communicating arteries

NOT VERTEBRAL

Anatomy Dissection (39 decks)

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