Head Flashcards

1
Q

Branch of the ophthalmic nerve which supplies a large portion of the scalp between the anterolaterla forehead and the vertex

A

Supraorbital nerve

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2
Q

Derived from the posterior ramus of c3 and supplies tje skin of the inferior occipital region

A

Third occiptal nerve

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3
Q

Branch of the mandibular nerve which supplies skin anterosuperior to the auricle

A

Auricotemporal nerve

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4
Q

Derive from anterior ramus of c2 and supplies the skin posterior to the ear

A

Lesser occipital nerve

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5
Q

Branch of the maxillary nerve that supplies the temple

A

Zygomaticotemporal nerve

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6
Q

Profuse bleeding of scalp lacerations are caused by (3)

A
  1. Elastic fibers Pull of the occipitofrontalis ms prevents closure of bleeding vessel and surrounding skin
  2. BV are adhered to the dense ct preventing vasoconstriction
  3. Many anastomoses
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7
Q

Most of the blood supply to the Dura, and skull or neurocranium comes from this A

A

Middle meningeal artery

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8
Q

Branch of ophthalmic nerve which supplies the anteromedial forehead

A

Supratrochlear nerve

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9
Q

Derived from the posterior ramus of c2, and supplies the skin of the occipital region

A

Greater occipital nerve

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10
Q

Loss of blood supply to the blood leads to necrosis. True or False

A

False

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11
Q

Richest cutaneous blood supply in the body

A

Dense CT of the Scalp

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12
Q

O: lateral 2/3 of superior nuchal line
I: epicranial aponeurosis

A

Epicranial aponeurosis occipital belly

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13
Q

Derived from the anterior ramis of c2 and c3 and supplies the skin sterior to the ear and over the angle of the mandible

A

Greater auricular nerve

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14
Q

O: anterior part od the aponeuorsis at the level of the coronal suture
I: skin on the lower part of the forehead

A

Occipitofrontalis muscle frontal belly

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15
Q

Scalp proper

A
  1. Skin
  2. Dense CT
  3. Epicranial aponeurosis or Galea aponeurotica
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16
Q

Resposible for the crowning and wrinkling of the forehead

A

Occipitofrontalis muscle

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17
Q

Broad, strong tendinous sheath that covers the calvaria

A

Epicranial aponeurosis

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18
Q

Danger area of the scalp. Sponge like layer

A

Loose areolar CT of the Scalp

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19
Q

Routes where infections are carried into the cranial cavity from the extracranial veins to the intracranial veins

A

Emissary veins

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20
Q

Continuous with the endosteum at the suture lines.

Dense layer of CT that forms the external periosteum of the neurocranium

A

Pericranium

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21
Q

Branches of external carotid artery

A

Superficial temporal artery - smaller (ends as postior amd terminal A)
Posterior auricular A - pass under cover of parotid gland proceeds to the auricle
Occipital A -

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22
Q

Internal carotid A branches

A

Ophthalmic A:

  1. supraorbital A
  2. Supratrochlear A - higher because supply vertex
23
Q

Highest pt of the skull

24
Q

The only group of ms that insert into skin

A

Ms of facial expression

25
Deep veins of the temporal region
Pterygoid venous plexus
26
Superficial veins of scalp (5)
``` Superficial temporal Occipital Posterior auricular Supraorbital Supratrochlear ```
27
Veins of the scalp connect to _______ of the skull via emissary veins
Diploic veins
28
Embryonic orgin of the ms of the facial expression
2nd pharyngeal arch
29
The ms of facial exprssion are located in the ___ O: bone/fascia I: skin
Subcutaneous tissue
30
Orbital group of facial muscles includes
Orbicularis oculi | Corrugator supercilli
31
Smaller and posterior to the orbicularis oculi
Corrugator Supercilii
32
Surround the eye socket and extend into the eyelid
Orbicularis oculi
33
A1: aponeurosis across the dorsum of the nose A2: cartilage of the nasal skeleton Match Axn: 1. Compresses the nares 2. Opens the nares
Transverse- compresses, A1 | Alar - opens, A2
34
Corrugator supercilii. True or False A: from superciliary arch in superolateral direction I: skin kf the eyebrow
True
35
Draw the eyebrows together creating vertical wrinkles on the bridge of the nose
Action of corrugator supercilii
36
A: medial orbital margin Medial palpebral ligament Lacrimal bone I: skin around the margin of the orbit Superior and inferior tarsal plates
Orbicularis oculi
37
Match actions: 1. Closes eyelids tightly 2. Drainage of tears 3. Closes eyelids gently Palpebral Lacrimal Orbital
P- gently L- drain O - tightly
38
Lower eyelid droops Lacrimal fluid pools in the lower eyelid, and cannot be spread across the surface of the eye.
Ectropion
38
Nasal group of ms
Nasalis Procerus Depressor Septi Nasi
40
Most superior of the nasal ms. Superficial to the other ms of facial expression
Procerus
41
Largest ms and divide into two parts which are
Nasalis: transverse and alar
42
Raising the eye brows and closing the eyelids test for
Facial nerve palsy
43
O: lower medial forehead I: from the nasal bone True or False
ingerchanged Procerus
44
Axn of Prcerus
Pulls eyebrows fro transverse wrinkles over the nose
45
A: from maxilla above mid incisor tooth to the nasal septum
Depressor septi nasi
46
Loc. Bet the mandible and maxilla deep to the other ms of the face O: maxilla and mandible. Fibers run an infermedial medial direction, blending with the orbicularis oris and the skin of the lips
Buccinator
47
Oral muscles lower group
Depressor anguli oris Depressor labii inferioris Mentalis
48
Purses the lips and enclose the opening of the oral cavity
Orbicularis oris
49
Pulls nose inferiorly opening the nares
Depressor septi nasi
51
Assists the alar part of the nasali in opening the nostrils
Depressor septi nasi
51
Most impt group of the facial expressors responsible for the movt of mouth and lips
Orbicularis oris Buccinator Smaller mss
52
Oral muscles upper group
Risorius zygomaticus major and minor Levator labii superioris - alaeque nasi Levator anguli oris
53
O: from the maxilla and from the other muscle of the cheek I: skin and mucous membranes of the lips
Oribicularis oris
54
Pulls the cheek ineards against the teeth preventing accum of food in that area.
Buccinator