Anatomy: Skull, Scalp and Face Flashcards Preview

Hugh's MD1 Neuro > Anatomy: Skull, Scalp and Face > Flashcards

Flashcards in Anatomy: Skull, Scalp and Face Deck (87)
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1

What are the two parts of the frontal bone?

The vertical aspect (forehead)

The horizontal aspect (roof of orbits)

1

Where is the ethmoid bone?

Between the eyes

1

What two vessels meet to form the straight sinus?

The inferior sagittal sinus and great cerebral vein/great vein of galen

1

Describe the course of the superficial temporal artery

Branches of the external carotid artery

Travels up the lateral aspect of the face, in front of the ear, towards the temple

2

Describe the arrangement of the LNs of the face?

They form an arch underneath the mandible and ear

3

Where is the mastoid process located on the temporal bone?

Posteriorly

4

What is the general structure of the parietal bone?

Flat and rectangular - follows the structure of the brain

4

Where does the straight sinus run?

Along the meeting point of the tentorium cerebelli and falx cerebri

5

What holes does the middle cranial fossa have?

The crescent pattern:

- The superior orbital fossa

- The foramen rotunda

- The foramen ovale

- The foramen spinosum

Others:

- Optic canal 

- Hypophysial fossa

6

What is trigeminal neuralgia characterised by?

Brief periods of pain in one of the divisions of the trigeminal nerve dermatome

6

What structures are run in/are located in the parotid gland?

CN 7

Retromandibular vein 

External carotid artery

Parotid LNs

7

How does the layered structure of the face differ from that of the scalp?

There is no loose connective tissue layer

The aponeurosis layer is replaced by facial muscles

7

What do you need to know about the veins of the face?

They follow their arteries

7

What is the course of CN7 in the face?

It exits the stylomastoid foramen

Gives of the post. auricular nerve

Enters the parotid 

Forms the parotid plexus aka pes anserinus

8

What is the shape and position of the petrous of the temporal bone?

Wedged shape forming a floor for the brain

9

What do the 5 terminal nerves of the parotid plexus do?

Supplies muscles of facial expression

10

Blood from where drains into the epidural space?

Meningeal arteries

11

What are the processes of the temporal bone called?

Zygomatic

Mastoid

Styloid

Petrous

12

Where does the middle meningeal artery lie in the skull?

Between the skull and dura

12

What supplies the dermatome in front of the ears?

The trigeminal nerves - three branches 

- Opthalmic (forehead and eyes)

- Maxillary (in between nose and mouth)

- Mandibular (jaw line)

13

How can you tell the meningeal arteries?

They groove the skull vault

14

Describe the cross-sectional structure of the bones of the cranial?

Spongy bone sandwiched between two tables of compact bone

15

What holes does the posterior cranial fossa have?

The internal auditory (or acoustic) meatus

Jugular foramen

Hypoglossal canal

(Foramen magnum)

16

What separate the cortex and cerebellum laterally?

Tentorium cerebelli

16

What are the facial branches of the internal carotid artery and where do they sit?

The supratrochlea above the trochlea

The supraorbital above the eyes

18

The Pterion is a landmark for which blood vessel?

The middle meningeal artery

20

What does the zygomatic process of the temporal bone articulate with?

Zygoma

20

Which dura septa lies between the two hemispheres?

Falx cerebri

20

Through which foramen does the middle meningeal artery enter the skull?

Foramen spinosum

21

What is the function of the holes of the cribiform plates?

Nerves passage through them