Scalp and Superficial Face Flashcards

1
Q

What are the layers of the scalp?

A

skin, connective tissue (dense), aponeurosis, loose connective tissue, pericranium

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

what nerve primarily supplies the cutaneous innervation of the face and scalp?

A

the trigeminal nerve

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

which divisions of the trigeminal nerve are strictly sensory?

A

opthalmic and maxillary

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

what area of skin does the opthalmic division of the trigeminal nerve supply?

A

frontonasal prominence

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

what does the opthalmic nerve split into?

A

frontal n, nasociliary n, and lacrimal nerve

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

what branches off the frontal nerve?

A

supraorbital nerve and supratrochlear nerve

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

what branches off the nasociliary nerve?

A

long ciliary nerves, posterior ethmoidal nerve, anterior ethmoidal nerve, infratrochlear nerve

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

what are the cutaneous nerve branches of the opthalmic division of the trigeminal nerve?

A

supraorbital nerve, supratrochlear nerve, infratrochlear nerve

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

what are the cutaneous nerve branches off the maxillary division of the trigeminal nerve?

A

infraorbital, zygomaticofacial nerve, zygomaticotemporal nerve

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

what are the cutaneous branches off the trigeminal nerve?

A

mental nerve, buccal nerve, auriculotemporal nerve

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

what does the supraorbital nerve exit?

A

supraorbital foramen (notch)

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

what does the supratrochlear nerve exit?

A

supratrochlear foramen

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

what does the infraorbital nerve exit?

A

infraorbital foramen

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

what are the scalp arteries?

A

posterior auricular, superficial temporal artery, occipital artery, supraorbital/supratrochlear artery

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

How is a scalp wound classified as superficial?

A

if it is superficial to the aponeurosis

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

why do superficial wounds not gape?

A

because of the strength of the aponeurosis

17
Q

why do deep scalp wounds gap when the aponeurosis is lacerated in the coronal plane?

A

because of the pull of the frontal and occipital bellies of the occipitofrontalis muscle in opposite directions

18
Q

why do scalp injuries bleed profusely?

A

the connective tissue of the scalp tends to hold cut vessels open

19
Q

how can scalp infections spread into the cranium?

A

via small emissary veins

20
Q

where do the muscles of facial expression insert onto?

A

the skin- not bones

21
Q

what nerve innervates the muscles of facial expression?

A

CN VII ( facial nerve)

22
Q

what muscles creates the look of surprise?

A

the frontalis and occipitalis muscle ( collectively known as the epicranius m)

23
Q

what are the smiling and laughing muscles?

A

zygomaticus major and minor muscles and levator anguli

24
Q

what are the kissing muscles?

A

buccinator muscle and orbicularis oris muscle

25
what are the motor branches of the facial nerve?
posterior auricular branch, temporal branch, zygomatic branch, buccal nerve, mandibular branch, cervical branch
26
what is the sensory component role of the facial nerve (CN VII)?
responsible for taste of the anterior 2/3 of the tongue
27
what nerve is damaged with cases of Bell's Palsy?
facial nerve (CN VII)
28
what are cases of bell's palsy susceptible to?
cornea ulceration
29
what are the muscles of mastication innervated by?
CN V3
30
what is the general description of herpes zoster virus?
lesions due to reactivation of virus that can appear anywhere on the body
31
Which cranial nerve and what specific division is most commonly affected by herpes zoster virus?
CN V- opthalmic division
32
what does the facial nerve exit to enter into the parotid gland?
the stylomastoid foramen