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OMC II, Dissection > Lab 4 > Flashcards

Lab 4 Flashcards

1
Q

Sternocleidomastoid
• Divides anterolateral neck into ____ & ____ cervical triangles
• Innervation: CN ____
• Foramen magnum → ____ foramen
• Destructive lesion XI = ____ paresis in rotating against resistance
• Vasculature: ____ → ____ artery

A 
posterior
anterior
XI
jugular
contralateral
ECA
occipital
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2
Q

Sternohyoid
• ____
• Innervation: ____

A

infrahyoid

ansa cervicalis

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3
Q

Omohyoid (superior belly)
• ____
• Innervation: ____

A

infrahyoid

ansa cervicalis

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4
Q

Sternothyroid
• ____
• Innervation: ____

A

infrahyoid

ansa cervicalis

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5
Q

Thyrohyoid
• ____
• Innervation: ____ (running with ____)

A

infrahyoid
C1
XII

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6
Q

Submandibular gland
• Innervation: ____ → (submandibular ganglion) → (ride) ____ lingual

• Vasculature: ECA → ____ → ____

A

VII GVE
V3
facial
glandular

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7
Q

Facial artery

  • Tortuous for maximal mandibular depression
  • ____ point
  • Cervical branches:
  • ____
  • Tonsilar
  • Glandular
  • ____
  • Muscular Branches
  • ____
  • Lateral nasal
  • ____
A 
pulse
ascending palatine
submental
angular
superior & inferior labial
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8
Q

Submandibular triangle: ____/____/____

A

mandible
anterior digastric
posterior digastric

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9
Q 
Posterior belly of Digastric
• \_\_\_\_
• Action: \_\_\_\_, \_\_\_\_ of mandible 
• Innervation: \_\_\_\_
• Vasculature: ECA → \_\_\_\_
A 
suprahyoid
depression
retrusion
VII
occipital
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10
Q

SUBMENTAL TRIANGLE

A

BOUNDARIES

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11
Q 
Anterior belly of Digastric
• \_\_\_\_
• Action: \_\_\_\_, \_\_\_\_ of mandible
• Innervation: \_\_\_\_
• Vasculature: ECA → \_\_\_\_
A 
suprahyoid
depression
retrusion
V3
occipital
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12
Q

Tendon of the digastric (passes through ____ and ____

A

stylohyoid

fascial sling

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13
Q

Stylohyoid
• ____
• Innervation: CN ____
• Vasculature: ECA → ____

A

suprahyoid
VII
occipital

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14
Q

CN XII (hypoglossal)

  • ____ fibers for all intrinsic and most extrinsic (not ____) tongue muscles
  • Lateral surface of ____, passing over ____
  • Inferior to ____ artery (hyoglossus separates)
  • Divisions
  • ____
  • Styloglossus
  • ____
  • Intrinsic tongue muscles
A 
GSE
palatoglossus
hyoglossus
mylohyoid
lingual

hyoglossus
genioglossus

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15
Q

Hyoglossus muscle
• Greater horn of hyoid → lateral side of tongue
• Innervation: CN ____

A

XII

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16
Q

Mylohyoid

  • Mylohyoid line → corpus of ____
  • Mylohyoid raphe = thin muscular diaphragm
  • Action: ____ floor of mouth/tongue
  • Innervation: CN ____
  • Vasculature: ECA → ____ (mandibular portion) → ____
A 
mandible
raise
V3
maxillary
inferior alveolar
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17
Q

Thyroid gland connected by isthmus

  • Pathology: ____ paralysis of laryngeal musculature (____ voice) from cutting recurrent laryngeal nerve
  • Vasculature:
  • subclavian → ____ trunk → ____
  • ECA → ____ → ____
A 
ipsilateral
raspy
thyrocervical
inferior thyroid
superior thyroid
glandular
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18
Q

Carotid Triangle: ____/____/____

A

SCM
posterior digastric
superior omohyoid

19
Q

Carotid Sheath: ____, ____, ____

A

CCA
IJV
CN X

20
Q 
Ansa cervicalis
• Cervical loop laying on carotid sheath
• \_\_\_\_ = superior root (From C1)
• \_\_\_\_ = C2, C3
• Carotid endarterectomy can cause mweakening of \_\_\_\_
A

descendens hypoglossi
inferior root
infrahyoids

21
Q

Descendens Hypoglossi
• ____ root of Ansa Cervicalis
• Coming from ____ Nerve

A

superior

hypoglossal

22
Q

Common Carotid Artery

  • Aortic Arch → ____ Trunk → R ____ + R ____
  • Bifurcates at thyrohyoid interval ____
  • L ____ directly off Aortic Arch
A 
brachiocephalic
CCA
subclavian
C3/C4
CCA
23
Q 
Carotid Sinus & Carotid Body 
• Sinus: baroreceptors – monitor \_\_\_\_
• Body: chemoreceptors – monitor \_\_\_\_ 
• afferent CN \_\_\_\_ to medulla
• (Will induce CN \_\_\_\_ efferent)
A

bp
O2/CO2
IX
X

24
Q 
ICA / ECA bifurcation
• At \_\_\_\_ interval
• Superir border of thyroid cartilage
• \_\_\_\_
• ICA: \_\_\_\_, petrous, \_\_\_\_, cerebral)
• ECA: \_\_\_\_
A 
thyrocervical
C3/C4
cervical
cavernous
SALFOPMS
25
Q

Superior thyroid artery

• From ____

  • ____
  • Superior laryngeal
  • ____
  • Glandular (thyroid)
  • ____
A

ECA
infrahyoid
cricothyroid
SCM

26
Q

Inferior thyroid artery

• ____ → ____ trunk → inferior thyroid

A

subclavian

thyrocervical

27
Q

Superior laryngeal artery

  • ____ → ____ → superior laryngeal
  • Upper ____
  • Pierces through ____ membrane
A

ECA
superior thyroid
larynx
thyrohyoid

28
Q

ECA Branches: ascending pharyngeal, lingual, facial, occipital, posterior auricular

  • ____
  • Ascending Pharyngeal
  • ____
  • Facial
  • ____
  • Posterior Auricular
  • ____
A

superior thyroid
lingual
occipital

29
Q

Ascending pharyngeal artery

  • ____ ECA branch
  • To pharyngeal ____ + ____
  • Prevertebral → ____ & longus coli
  • Inferior tympani → ____
  • Neuromeningeal → ____
  • ____
A

smallest
constrictors
stylopharyngeus

longus capitus
middle ear
PCF
palatine

30
Q

Lingual artery

Medial to ____ nerve Tortuous for mobility
Arises at tip of greater horn of hyoid

  • ____
  • Sublingual
  • ____
A

hypoglossal
dorsal lingual
deep lingual

31
Q

Common Facial Vein (→____)

• Retromandibular (Anterior division) joins facial

A

IJV

32
Q

Occipital artery

  • Muscular → ____, styloyoid, ____
  • ____
  • Auricular → ____
  • Meningeal
  • Terminal → ____
A 
digastric
posterior cervical
SCM
mastoid air cells
scalp
33
Q

Posterior auricular artery

  • Auricularis → ____
  • Occipital → ____
  • Stylomastoid → ____ (→ fetal stapedial)
  • Bells Palsy: vasospasm of ____ artery (shares canal with ____)
A 
deep external ear
scalp
posterior tympanic
stylomastoid
VII
34
Q

Lingual & superior thyroid veins
• Drains ____ floor
• To ____

A

tongue/oral

IJV

35
Q

Internal branch of superior laryngeal

  • ____
  • Mucosa in ____, piriform recess, supraglottic larynx
  • ____ LIMB OF COUGH
  • Mediates some ____
A

GSA
valleculae
afferent
choking

36
Q

External branch of superior laryngeal

  • ____
  • ____
  • Inferior ____
A

SVE
cricothyroid
pharyngeal constrictor

37
Q

Pharyngeal Branch of Vagus

  • Joins ____ to form pharyngeal plexus
  • Unilateral Vagal Lesion →
  • ____ = dysphagia
    (trouble swallowing)
  • LVP ____ paralysis
  • Nasal speech & nasal ____
  • → pharyngeal/palatal muscle - EXCEPT:
  • ____ (IX)
  • ____ (V3)
A

IX
abnormal gag
ipsilateral
reflux

stylopharyngeus
TVP

38
Q

Brachiocephalic artery

  • Trunk off ____
  • Branches into R ____ + R ____
A

aortic arch
subclavian
common carotid

39
Q

Inferior thyroid vein

Drains into ____

A

left brachiocephalic vein

40
Q

Superior vena cava

  • Caval System
  • To right ____
  • Drains head/neck/____ limbs
A

atrium

upper

41
Q

Aortic arch: brachiocephalic, L ____, L ____

A

CCA

subclavian

42
Q

Superior Thoracic Aperture:

L/R ____, L/R ____, ____/bifurcation, ____

A

vagus
recurrent laryngeal
trachea
esophagus

43
Q

Recurrent laryngeal (inferior)

  • ____: infraglottic larynx mucosa
  • ____: intrinsic laryngeal m (except
    ____)
  • Vulnerable to ____ pathology/excision
  • ____ paralysis of most laryngeal m (____ voice)
A 
GSA
SVE
cricothyroid
thyroid
ipsilateral
rough/raspy

OMC II, Dissection (10 decks)

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