Ch 12 Scalp and Cranial Cavity

Question 1

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

Answer 1

5, soft

Question 2

The 5 layers of the scalp are:

Answer 2

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

Question 3

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

Answer 3

external, scalp proper

Question 4

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

Answer 4

skin; contains hair and sebaceous glands

Question 5

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

Answer 5

close subcutaneous tissue
vasculature and nerves

Question 6

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

Answer 6

Layer 3, 3 names

Gee
Enough
Already

aponeurosis, galea aponeurotica, epicranium

Question 7

“galea”=

Answer 7

helmet

Question 8

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

Answer 8

frontalis, occipitalis

Question 9

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

Answer 9

loose subaponeurotic tissue

Question 10

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

Answer 10

blood or pus (nasty)

Question 11

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

Answer 11

emissary veins, dural sinuses

Question 12

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

Answer 12

pericranium, external, periosteum of the skull

Question 13

3 layers of the cranial bone:

Answer 13

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

Question 14

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

Answer 14

periosteum AKA pericranium

Question 15

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

Answer 15

outer table, inner table, COMPACT BONE

Question 16

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

Answer 16

middle, SPONGY

Question 17

The thickest cranial bones are the _ and _ bones.

Answer 17

occipital and frontal

Question 18

The thinnest cranial bone is the _ bone.

Answer 18

temporal

Question 19

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

Answer 19

endosteum AKA endocranium, dura

Question 20

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

Answer 20

external carotid and the internal carotid arteries

Question 21

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

Answer 21

close subcutaneous tissue

Question 22

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

Answer 22

internal

Question 23

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

Answer 23

temporal and occipital

Question 24

Venae Comitantes arrangement=

Answer 24

2 veins lie on either side of an artery

Question 25

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

Answer 25

true

Question 26

The scalp is innervated anterior to the external ear via:

Answer 26

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

Question 27

The scalp is innervated posterior to the external ear via:

Answer 27

cervical spinal nerves

Question 28

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

Answer 28

-meningeal dura -endosteal dura / endosteum / endocranium Men Eventually End Everything

Question 29

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

Answer 29

Dural Sinuses

Question 30

Dural Sinuses contain _ and absorbed _ AKA _.

Answer 30

blood and absorbed cerebrospinal fluid AKA CSF DONT FORGET TO SPELL THIS OUT ON EXAM :)

Question 31

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

Answer 31

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

Question 32

"falx"=

Answer 32

sickle

Question 33

"tentorium"=

Answer 33

tent

Question 34

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

Answer 34

sickles

Question 35

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

Answer 35

superior, cereBRUM

Question 36

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

Answer 36

crista galli, tentorium cerebelli, internal

Question 37

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

Answer 37

cereBELLUM

Question 38

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

Answer 38

falx cerebelli, cereBELLAR hemispheres

Question 39

The diaphragma sellae within the dura is:

Answer 39

a small circular horizontal sheet of dura

Question 40

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

Answer 40

sella turcica, hypophyseal stalk AKA INFUNDIBULUM

Question 41

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

Answer 41

Middle Meningeal Artery

Question 42

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

Answer 42

maxillary, external carotid MMA-MA-ECA

Question 43

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

Answer 43

MMA middle meningeal MA maxillary ECA external carotid

Question 44

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

Answer 44

sinus

Question 45

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

Answer 45

endothelium

Question 46

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

Answer 46

blood and CSF, internal jugular vein

Question 47

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

Answer 47

superior, cereBRI

Question 48

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

Answer 48

diploic, cerebral, lacunae

Question 49

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

Answer 49

posteriorly

Question 50

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

Answer 50

inferior sagittal sinus

Question 51

The inferior sagittal sinus drains inferiorly into the _ sinus.

Answer 51

straight

Question 52

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

Answer 52

straight

Question 53

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

Answer 53

inferior sagittal sinus, cereBRAL veins, posteriorly

Question 54

The transverse sinuses begin at the confluence and course _.

Answer 54

laterally

Question 55

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

Answer 55

tentorium cerebelli, anteriorly, sigmoid

Question 56

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.

Answer 56

petrous portion, jugular foramen, internal jugular vein

Question 57

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

Answer 57

sella turcica

Question 58

Circle of WIllis=

Answer 58

Cerebral Arterial Circle

Question 59

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

Answer 59

internal carotid arteries, vertebral arteries

Question 60

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

Answer 60

anterior cerebral and middle cerebral

Question 61

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

Answer 61

longitudinal fissure

Question 62

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

Answer 62

lateral fissure

Question 63

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

Answer 63

vertebral

Question 64

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.

Answer 64

basilar

Question 65

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

Answer 65

pons, posterior cerebral

Question 66

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

Answer 66

BIPPAA, 2 cerebral, 2 communicating -basilar -internal carotid artery -posterior cerebral arteries -posterior communicating arteries -anterior cerebral arteries -anterior communicating arteries ***NOT VERTEBRAL***