Brainscape's Knowledge GenomeTM

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


See full index

HNA-MVST1B > Unit 1 > Flashcards

Unit 1 Flashcards

1
Q

The skull, excluding the ossicles, is composed of __ bones.

A

22

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

are all the bones of the cranium paires?

A

nope - some are paired but some are single

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

are of these bones are firmly attached to each other via sutures and are immovable

A

all but 1. the only moveable one is the mandible

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

whats the only movable cranial bone?

A

the mandible

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

describe how the cranial vault ossifies?

A

it ossifies in membrane

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

The cranial vault ossifies in membrane to form ……

A

The cranial vault ossifies in membrane to form the frontal, parietal, occipital and squamous temporal bones

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

how does the scull base ossify?

and what does it ossify around?

A

in cartilage.

around the cranial nerves to form foramina

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

the skull vault comprises which bones?

A

4 unpaired bones (ethmoid, frontal, sphenoid and occipital)

and 2 paired bones (temporal and parietal)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

describe the ethmoid bone

A

cribriform plate with the crista galli, perpendicular plate superior and middle conchae, ethmoidal air cells

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

describe the frontal bone

A

contains air sinuses; in two parts at birth but usually fuses early in life superior ciliary ridges and supra-orbital notches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

describe the sphenoid bone

A

greater and lesser wings, medial and lateral pterygoid plates sella turcica for the pituitary gland
optic canals, superior orbital fissures foramen rotundum, foramen ovale, foramen spinosum

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

what are the pterygoid processes of the sphenoid bone

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

describe the occipital bone

A

squamous and basal parts, hypoglossal canals, foramen magnum occipital condyles, occipital protuberance, superior nuchal line

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

describe the temporal bone

A
  • squamous part:* zygomatic process, mandibular fossa
  • petromastoid part:* middle and inner ear, internal auditory meatus, facial canal, air cells in the mastoid process
  • tympanic part:* external auditory meatus, attachment of tympanic membrane
  • styloid process*: attachment for ligaments and muscles, adjacent to stylomastoid foramen, where CN VII emerges
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

describe the parietal bone

A

contains foramina for emissary veins that connect scalp veins with venous dural sinuses inside the skull

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

Describe what is meant by the tiered floor of the cranial cavity?

A

3 tiers

lowest posteriorly

each tier forms the floor of a cranial fossa

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

what bone forms the middle of the anterior crainal fossa?

A

the cribriform plate of the ethmoid bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what passes through the foramina of the cribriform plate?

A

olfactory filaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

whats the crista galli?

A

a midline projection to which the falx cerebri attaches.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

whats the falx cerebri?

just so you know

A

The falx cerebri, also known as the cerebral falx, is a large, crescent-shaped fold of meningeal layer of dura mater that descends vertically in the longitudinal fissure between the cerebral hemispheres of the human brain. The falx cerebri attaches anteriorly at the crista galli in proximity to the cribriform plate and to the frontal and ethmoid sinuses. Posteriorly, it is connected with the upper surface of the cerebellar tentorium.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what mostly occupies the anterior cranial fossa?

A

frontal lobes of the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

describe the central portion of the middle cranial fossa?

A

central portion is formed by the body of the sphenoid which has a deep depression for the pituitary gland - the pituitary fossa

The pituitary fossa and clinoid processes together form the sella turcica

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what is the sella turcica?

A

saddle-shaped depression in the body of the sphenoid bone

The pituitary gland or hypophysis is located within the most inferior aspect of the sella turcica, the hypophyseal fossa.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

what is housed by the lateral middle cranial fossa?

A

temporal lobes of the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

the clinoid processes serve as anchor points for what?

A

tentorium cerebelli, a membranous sheet that divides the brain.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

does the middle cranial fossa have a sort of cresent of foramina?

A

yep

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

can you name the 8 formaina of the middle cranial fossa?

A

Optic canal

foramen Lacerum

Hiatus of the greater petrosal nerve

Carotid canal

Superior orbital fissure

foramen rotundum

foramen ovale

foramen spinosum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

describe the optic canals

A

anteriorly in the middle cranial fossa.

They transmit the optic nerves (CN II) and ophthalmic arteries into the orbital cavities.

The optic canals are connected by the chiasmatic sulcus, a depressed groove running transversely between the two.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Immediately lateral to the central part of the middle cranial fossa are four foramina:

what are they

A

Superior orbital fissure

foramen rotundrum

foramen ovale

foramen spinosum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

describe the location of the superior orbital fissure

A

superior to the foramen rotundrum and lying between the greater and lesser wings of the sphenoid.

opens anteriorly into the orbit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

what does the superior orbital fissure transmit?

A

oculomotor nerve (CN III)

trochlear nerve (CN IV)

ophthalmic branch of the trigeminal nerve (CN V1)

abducens nerve (CN VI)

opthalmic veins and sympathetic branches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

describe the foramen rotundrum

and what does it transmit?

A

On each side where the anteromedial walls meet the floor is the foramen rotundum

opens into the pterygoid fossa and transmits the maxillary branch of the trigeminal nerve (CN V2)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

descrbie the foramen ovale

what does it transmit

A

anteriomedial, opens into the infratemporal fossa

transmits the mandibular branch of the Trigeminal nerve (CN V3) and accessory meningeal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

describe the foramen spinosum

A

opens in into the infratemopral fossa

transmits the middle meningeal artery, middle meningeal vein and meningeal branch of CN V3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

what are the 3 major foramina of the temporal bone?

A

hiatus of the greater petrosal nerve

hiatus of the lesser petrosal nerve

Carotid canal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

describe the hiatus of the greater petrosal nerve

which bone does it penetrate?

A

penetrates the temporal bone

trasmits the greater petrosal nerve (a branch of the facial nerve)

and the petrosal branch of the middle meningeal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

descrbie the hiatus of the lesser petrosal nerve

A

transmits the lesser petrosal nerve (a branch of the glossopharyngeal nerve)

It is located posterior to the groove for the superior petrosal sinus and posterolateral to the jugular foramen - wiki

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

describe the carotid canal

A

located posteriorly and medially to the foramen ovale.

This is traversed by the internal carotid artery, which ascends into the cranium to supply the brain with blood. The deep petrosal nerve also passes through this canal.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

the deep petrosal nerve passes through which canal

A

carotid canal with the internal carotid artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

whats the foramen Lacerum?

A

Between the tip of the petrous temporal bone and sella turcica is the cartilage-filled foramen lacerum.

its pierced by only small vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

what does the poterior cranial fossa house?

A

cerebellum and much of the brainstem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

what bones comprise the posterior cranial fossa?

A

the occipital bone and the 2 temporal bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

boundries of the posterior cranial fossa

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

what does the brainstem comprise?

(3 main bits)

A

The brainstem is comprised of the medulla oblogata, pons and midbrain and continues down through the foramen magnum to become the spinal cord.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

the floor of the posterior cranial fossa is what?

A

the foramen magnum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

the hypoglossal canals lie anterior to what?

A

occipital condyles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

posterior cranial fossa temporal bone formain?

what does it transmit

A

The internal acoustic meatus is an oval opening in the posterior aspect of the petrous part of the temporal bone.

It transmits the facial nerve (CN VII), vestibulocochlear nerve (CN VIII) and labyrinthine artery.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

describe the foramen magnum

A

lies centrally in the floor of the posterior cranial fossa. It is the largest foramen in the skull.

It transmits the medulla of the brain, meninges, vertebral arteries, spinal accessory nerve (ascending), dural veins and anterior and posterior spinal arteries.

Anteriorly an incline, known as the clivus, connects the foramen magnum with the dorsum sellae.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

the foramen magnum is a foramen in which bone?

A

Occipital bone - base of back of skull

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

describe the jugular foramen

A

posterior part fo skull

situated either side of foramen magnum

trasmit the:

glossopharyngeal nerve,

vagus nerve,

spinal accessory nerve (descending),

internal jugular vein,

inferior petrosal sinus,

sigmoid sinus

and meningeal branches of the ascending pharyngeal and occipital arteries.

52
Q

what does the hypoglossal canal transmit?

A

hypoglossal nerve through the occipital bone

53
Q

describe the cerebellar fossa

A

Posterolaterally to the foramen magnum lies the cerebellar fossae. These are bilateral depressions that house the cerebellum. They are divided medially by a ridge of bone, the internal occipital crest.

54
Q

what are the meninges

A

the membranous coverings of the brain and spinal cord. There are three layers of meninges, known as the dura mater, arachnoid mater and pia mater.

55
Q

main functions of the meninges

A

Provide a supportive framework for the cerebral and cranial vasculature.

Acting with cerebrospinal fluid to protect the CNS from mechanical damage.

56
Q

whihc meninge is the outermost layer

A

dura mater and dural folds

57
Q

does the dura mater consist of dense connective tissue?

A

yep

58
Q

describe the layers which dura mater is divided into

A

outer endosteal layer, which is continuous with the pericranium through the cranial sutures and foramina,

and an inner meningeal layer

59
Q

are he 2 layers of dura mater alwasy united?

A

mostly - except when they separate to enclose the venous sinuses

only one layer surrounds the spinal cord

60
Q

what forms the dural folds

A

The meningeal layer is reflected to form four septa or dural folds.

The two main folds are the falx cerebri between the two cerebral hemispheres, and the tentorium cerebelli, separating the cerebellum from the posterior parts of the cerebral hemisphere

61
Q

what are the dural venous sinuses responsible for?

A

They are responsible for the venous vasculature of the cranium, draining into the internal jugular veins.

62
Q

what does the tentorium cerebelli do?

A

the tentorium cerebelli divides the cranial cavity into supratentorial and infratentorial compartments.

63
Q

describe the diaphragma sellae

A

a small horizontal shelf of dura mater, the diaphragma sellae, covers the pituitary fossa in the sella turcica of the sphenoid bone.

64
Q

dura matter innervation and blood supply

A

The dura mater receives its own blood supply – primarily from the middle meningeal artery and vein. It is innervated by the trigeminal nerve (V1, V2 and V3).

65
Q

describe the pia mater

A

a delicate, highly vascular layer which closely covers the brain and spinal cord

66
Q

is the pia mater thin or thick?

A

very thin

67
Q

describe how the pia mater is adhered to the brain and spinal cord

A

tightly adhered to

68
Q

It is the only covering to follow the contours of the brain (the gyri and fissures).

describes what?

A

pia mater

69
Q

Like the dura mater, it is highly vascularised, with blood vessels perforating through the membrane to supply the underlying neural tissue.

describes what?

A

pia mater

  • its highly vascularised
70
Q

which has the thinner pia - brain or spinal cord

A

the cranial pia is thinner than that of the spinal cord

71
Q

is pia mater tightly or loosely attached to the brain?

(text book answer - i know earlier card said otherwise)

A

supposedly loosely attached

72
Q

The spinal cord has a ______ ____ ______ into which the pia follows; similarly, the brain has numerous _______ and ______ which is invested by pia.

A

The spinal cord has a ventral median fissure into which the pia follows; similarly, the brain has numerous grooves and sulci which is invested by pia.

73
Q

what is arachnoid mater?

A

thin non-vascular layer between the dura and pia.

74
Q

how does cranial arachnoid differ from that of the spinal cord

A

cranial = thicker

cranial arachnoid connected to cranial pia by numerous fibrous strands that cross the fluid-filled subarachnoid space.

75
Q

describe what subarachnoid cisterns are

A

As the arachnoid does not line the grooves on the surface of the brain or spinal cord, the sulci of the cerebral hemispheres are filled with cerebrospinal fluid (CSF). There are larger accumulations of CSF at sites where cranial arachnoid bridges across larger grooves in the brain surface, the subarachnoid cisterns.

76
Q

is the arachnoid layer innervated?

A

no

77
Q

is the arachnoid layer avascular?

A

yep

78
Q

describe the subarachnoid space

A

Underneath the arachnoid is a space known as the sub-arachnoid space. It contains cerebrospinal fluid, which acts to cushion the brain.

79
Q

describe arachnoid granulations and their purpose

A

Small projections of arachnoid mater into the dura (known as arachnoid granulations) allow CSF to re-enter the circulation via the dural venous sinuses.

80
Q

describe the spinal epidural space

A

lies between the dura and vertebral periosteum, containing loose connective tissue, venous plexuses and lymphatics

81
Q

describe the cranial epidural (extradural) space

A

The cranial epidural (extradural) space is a potential space between the endosteal layer and skull, and is only realised pathologically

(usually from a bleed separating the layers)

82
Q

describe the subdural space

A

potenital space between dura and arachnoid

83
Q

describe the subarachnoid space

and where does it extend to

A

The subarachnoid space contains cerebrospinal fluid, bathing the brain and spinal cord. In the adult, it extends to the termination of the lumbar cistern, at the level of the second sacral vertebra.

84
Q

layers of what enclose the dural venous sinuses

A

dura obvs

they lie between the periosteal and meningeal layers of the dura mater.

85
Q

what are the dural venous sinuses lined by?

A

vascular endothelium, with no valves or muscular tissue in their walls

86
Q

function of the dural venous sinuses?

A

drain blood from the brain and cranium

87
Q

heres a diagram of the dural venous sinuses of the brain

A
88
Q

All the dural venous sinuses ultimately drain into … what?

A

All the dural venous sinuses ultimately drain into the internal jugular vein.

89
Q

do the dural venous sinuses have valves?

A

nope

90
Q

The …………. are found in the falx cerebri of the dura mater.

A

The straight, superior, and inferior sagittal sinuses are found in the falx cerebri of the dura mater.

91
Q

describe the superior sagittal sinus

A

begins at the crista galli

and runs in the superior margin of the falx cerebri, forming a median groove in the cranial vault.

It usually drains into the right transverse sinus

92
Q

describe the inferior sagittal sinus

A

The inferior sagittal sinus runs in the posteroinferior border of the falx cerebri. It joins the great cerebral vein and the right and left basal veins to form the straight sinus.

93
Q

descrbie the straight sinus

A

The straight sinus runs in the junction of the falx cerebri and tentorium cerebelli, continuing as the left transverse sinus

94
Q

describe the transverse sinus

A

The transverse sinus runs on each side in the lateral margin of the tentorium cerebelli.

It receives the superior petrosal sinus and continues into the sigmoid sinus.

95
Q

describe the sigmoid sinus

where do the mastoid air cells lie relative to it?

A

The sigmoid sinus is an S-shaped sinus that deeply grooves the petrous temporal bone. It curves forward onto the occipital bone and passes through the jugular foramen to join the inferior petrosal sinus and form the internal jugular vein. The mastoid air cells lie lateral to it.

96
Q

describe the superior petrosal sinus

A

The superior petrosal sinus runs in the edge of the tentorium cerebelli, where it attaches to the petrous temporal bone and thus connects the cavernous sinus with the transverse sinus.

97
Q

describe the inferior petrosal sinus

A

The inferior petrosal sinus lies in the groove between the occipital bone and petrous temporal bone. It connects and drains the cavernous sinus into the internal jugular vein.

98
Q

deascribe the cavernous sinus

A

The cavernous sinus lies on either side of the body of the sphenoid.

can be found on either side of the sella turcica

99
Q

what veins does the cavernous sinus drain/

A

the superior and inferior opthalmic veins,

thus forming extracranial to intracranial venous connections via the facial vein and the pterygoid plexus

100
Q

describe the structure of the savernous sinus,

and the strucutres nearby

A

Numerous delicate, interlacing strands of connective tissue create a cavern-like meshwork in one blood-filled space

The internal carotid artery runs through the sinus with the abducent nerve (VI). The oculomotor (III), trochlear (IV), ophthalmic (Va) and maxillary (Vb) nerves lie in its lateral wall.

101
Q

where does the spinal cord being and end

A

foramen magnum

and ends at lower border of L1;

102
Q

the conus medullaris is attached by something to the whatcha-ma-call-it

what on earth does this mean

A

the conus medullaris is attached by a stalk of pia mater (the filum terminale) to the end of the dural sac at S2

103
Q

what does the cauda equina consist of?

A

the roots of the spinal nerves from L2 to Co which pass caudal to the conus to exit at their respective intervertebral foramina.

104
Q

how do the spinal nerve roots energe from the spinal cord

A

ermege from vetnral and dorsal aspects

anterior motor

posterior sensory roots

105
Q

each spinal root is covered by what?

A

3 meningeal layers

106
Q

after the roots have emerged as anterior motor and posterior sensory roots what happens?

A

At each level the two roots join to form a mixed spinal nerve in the intervertebral foramen.

Where the spinal roots unite, the meninges fuse with the epineurium of the spinal nerve.

107
Q

what is the denticulate ligament

A

The denticulate ligaments are triangular shaped ligaments that anchor the spinal cord along its length, at each side, to the dura mater. The bases of the ligaments arise in the pia mater and they are firmly attached to the arachnoid mater and dura mater at the apex.

108
Q

here is a picture

A
109
Q

describe the path of the vertebral artery

A

travels up the neck, enters cranium through foramen magnum

gives:

  • small posterior meningeal branch
  • anterior and posterior spinal arteries
  • branches to the medulla
  • posterior inferior cerebellar artery

On ventral surface of brianstell - the 2 vertebral arteries merge to form the single basilar artery inthe midline groove on the ventral surface of the pons

110
Q

describe the basilar artery

(remember it originated from the united vertebral arteries)

A

The basilar artery gives branches to the brainstem, the anterior inferior cerebellar and superior cerebellar arteries.

More anteriorly, it divides into the posterior cerebral arteries that supply the occipital lobes of the cerebrum.

111
Q

describe how the vertebral arteries ascend the neck

A

They then ascend the posterior aspect of the neck, through holes in the transverse processes of the cervical vertebrae, known as foramen transversarium.

112
Q

describe the course of the internal carotid artery

A

The internal carotid arteries (ICA) originate at the bifurcation of the left and right common carotid arteries, at the level of the fourth cervical vertebrae (C4). then pass upwards in the carotid sheath.

enters carotid foramen at base of skull

makes right angled turn to travel anteromedially towards the apex of the petrous temporal bone where it emerges superior to the cartilage filling the foramen lacerum.

then makes another right handed turn into the cavernous sinus and runs anteriorly within it grooving the body of the sphenoid

then turns upwards pierces the dural roof of the cavernous sinus and gives off the ophthalmic artery.

Now lying within the subarachnoid space, it turns backwards lateral to the optic chiasma.

On reaching the lateral edge of the posterior clinoid process, it turns superiorly towards the brain, giving the anterior and middle cerebral arteries.

113
Q

describe the circle of willis

A

anastomotic connection between the vertebral and internal carotid arteries at the base of the brain in the region of the optic chiasma and pituitary stalk.

114
Q

circle of willis

The anterior cerebral arteries are connected by the ……….., and each posterior cerebral artery is joined to the corresponding internal carotid artery by a …….

A

The anterior cerebral arteries are connected by the anterior communicating arteries, and each posterior cerebral artery is joined to the corresponding internal carotid artery by a posterior communicating artery

115
Q

what does the circle of willis allow?

A

blood from the vessels on one side of the body to reach those on the other side, or for blood from the vertebral distribution to reach the carotid distribution when necessary

116
Q

what happens to the terminal branches of the ICA and the vertebral artery?

A

The terminal branches of the vertebral and internal carotid arteries all anastomose to form a circular blood vessel, called the Circle of Willis.

117
Q

main components of the circle of willis?

A

There are three main (paired) constituents of the Circle of Willis:

Anterior cerebral arteries – terminal branches of the internal carotid arteries.

Internal carotid arteries – located immediately proximal to the origin of the middle cerebral arteries.

Posterior cerebral arteries – terminal branches of the basilar artery

To complete the circle, two ‘connecting vessels’ are also present:

Anterior communicating artery – connects the two anterior cerebral arteries.

Posterior communicating artery – branch of the internal carotid, this artery connects the ICA to the posterior cerebral artery.

118
Q

do weins run along side the intracranial parts of either the vertebral or internal carotid arteries?

A

No, Instead, veins from the brain follow independent courses to the dural sinuses.

119
Q

describe te path of te external carotid artery

A

This artery extends from the bifurcation of the common carotid artery at the level of the upper border of the thyroid cartilage to the neck of the mandible.

Within the parotid gland, it divides into the superficial temporal and maxillary arteries.

The other main branches of the external carotid artery are the superior thyroid, lingual, facial and occipital arteries.

120
Q

give 3 things the ICA supplies

A

The brain

Eyes

Forehead

121
Q

generally what does the ECA supply?

A

The external carotid artery supplies the areas of the head and neck external to the cranium

122
Q

the ECA:

After arising from the common carotid artery, it travels up the neck, passing ________ to the mandibular neck and ________ to the lobule of the ear.

A

After arising from the common carotid artery, it travels up the neck, passing posteriorly to the mandibular neck and anteriorly to the lobule of the ear.

123
Q

where does the ECA end?

A

in the parotid gland where it splits into the superficial temporal and maxillary arteries

124
Q

what does the maxillary supply

and facial / superficial temporal arteries supply (generally)

A

The maxillary artery supplies the deep structures of the face, while the facial and superficial temporal arteries generally supply superficial areas of the face.

125
Q

describe the middle meningeal artery

A

The middle meningeal artery arises from the maxillary artery and enters the skull through the foramen spinosum.

It runs between dura mater and bone, dividing into two main branches.

The anterior branch passes deep to the pterion, where it is liable to be torn in skull fractures.

126
Q

what does the pterion refer to?

A

The pterion refers to the area on the lateral aspect of the skull where the sutures of the parietal, frontal, temporal bones and the greater wing of the sphenoid meet.

127
Q

end

A

HNA-MVST1B (3 decks)

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