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Z Anatomy 2nd Bi > Head > Flashcards

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

A

Vertex

24
Q

The only group of ms that insert into skin

A

Ms of facial expression

25
Q

Deep veins of the temporal region

A

Pterygoid venous plexus

26
Q

Superficial veins of scalp (5)

A 
Superficial temporal
Occipital
Posterior auricular
Supraorbital
Supratrochlear
27
Q

Veins of the scalp connect to _______ of the skull via emissary veins

A

Diploic veins

28
Q

Embryonic orgin of the ms of the facial expression

A

2nd pharyngeal arch

29
Q

The ms of facial exprssion are located in the ___
O: bone/fascia
I: skin

A

Subcutaneous tissue

30
Q

Orbital group of facial muscles includes

A

Orbicularis oculi

Corrugator supercilli

31
Q

Smaller and posterior to the orbicularis oculi

A

Corrugator Supercilii

32
Q

Surround the eye socket and extend into the eyelid

A

Orbicularis oculi

33
Q

A1: aponeurosis across the dorsum of the nose
A2: cartilage of the nasal skeleton

Match

Axn:

  1. Compresses the nares
  2. Opens the nares
A

Transverse- compresses, A1

Alar - opens, A2

34
Q

Corrugator supercilii. True or False

A: from superciliary arch in superolateral direction
I: skin kf the eyebrow

A

True

35
Q

Draw the eyebrows together creating vertical wrinkles on the bridge of the nose

A

Action of corrugator supercilii

36
Q

A: medial orbital margin
Medial palpebral ligament
Lacrimal bone

I: skin around the margin of the orbit
Superior and inferior tarsal plates

A

Orbicularis oculi

37
Q

Match actions:

  1. Closes eyelids tightly
  2. Drainage of tears
  3. Closes eyelids gently

Palpebral
Lacrimal
Orbital

A

P- gently
L- drain
O - tightly

38
Q

Lower eyelid droops

Lacrimal fluid pools in the lower eyelid, and cannot be spread across the surface of the eye.

A

Ectropion

38
Q

Nasal group of ms

A

Nasalis
Procerus
Depressor Septi Nasi

40
Q

Most superior of the nasal ms. Superficial to the other ms of facial expression

A

Procerus

41
Q

Largest ms and divide into two parts which are

A

Nasalis: transverse and alar

42
Q

Raising the eye brows and closing the eyelids test for

A

Facial nerve palsy

43
Q

O: lower medial forehead
I: from the nasal bone

True or False

A

ingerchanged

Procerus

44
Q

Axn of Prcerus

A

Pulls eyebrows fro transverse wrinkles over the nose

45
Q

A: from maxilla above mid incisor tooth to the nasal septum

A

Depressor septi nasi

46
Q

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

A

Buccinator

47
Q

Oral muscles lower group

A

Depressor anguli oris
Depressor labii inferioris
Mentalis

48
Q

Purses the lips and enclose the opening of the oral cavity

A

Orbicularis oris

49
Q

Pulls nose inferiorly opening the nares

A

Depressor septi nasi

51
Q

Assists the alar part of the nasali in opening the nostrils

A

Depressor septi nasi

51
Q

Most impt group of the facial expressors responsible for the movt of mouth and lips

A

Orbicularis oris
Buccinator
Smaller mss

52
Q

Oral muscles upper group

A

Risorius
zygomaticus major and minor
Levator labii superioris - alaeque nasi
Levator anguli oris

53
Q

O: from the maxilla and from the other muscle of the cheek
I: skin and mucous membranes of the lips

A

Oribicularis oris

54
Q

Pulls the cheek ineards against the teeth preventing accum of food in that area.

A

Buccinator

Z Anatomy 2nd Bi (5 decks)

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