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maris ga 2 > cervical triangles > Flashcards

cervical triangles Flashcards

1
Q

what are the superficial structures of the neck

A

skin, superficial fascia, platysma, cutaneous nerves, superficial veins, superficial lymph nodes

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2
Q

what is function of platysma

A

facial expressions

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3
Q

what is the supply of the platysma nerve

A

facial

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4
Q

origin of platysma

A

deep fascia covering the pectoralis major and deltoid muscles

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5
Q

insertion of platysma

A

lower margin of the body of mandible blending with the muscle at the angle of the mouth

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6
Q

nerve supply of platysma

A

cervical branch of facial nerve

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7
Q

action of platysma

A

depresses the mandible and draws the lower lip and angle of the mouth (make frown)

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8
Q

greater occipital is from where

A

dorsal rami of c2

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9
Q

what muscles does the greater occipital separate

A

semispinalis capitus and spinalis capitis

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10
Q

the lesser occipital is from what

A

ventral rami c2

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11
Q

what are the branches of cervical plexus

A

lesser occipital, great auricular, transverse cervical , supraclivuclar

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12
Q

what is the great auricular from

A

ventral rami c2,c3

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13
Q

what I s the transverse cervical from

A

ventral rami c2,3

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14
Q

what is the supraclavicular from

A

c3,4 ventral rami

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15
Q

what nerve runs on the posterior border of the scm

A

lesser occipital nerve c2

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16
Q

what nerve from the cervical plexus also accompanies the external jugular vein

A

great auricular

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17
Q

what nerve crosses across the scm

A

transverse cervical

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18
Q

external jugular vein drains most of the () and ().

A

scalp and side of the face

19
Q

The external jug v begins at the angle of () with the union of the () vein and () vein

A

angle of mandible, union of posterior auricular vein and posterior division of retromandibular vein

20
Q

where does th e ext jug v end at

A

subclavian vein

21
Q

what is the only vein oto drain into the subclavian

A

the external jug v

22
Q

the external jug vein is external to the ()

A

scm

23
Q

what do you see with congested heart failure, stenosis, valsalva meanuver

A

the ext jug vein sticking out

24
Q

where does the superficial temporal veina nd common facial vein? (or ext jug v) unite

A

angle of mandible

25
Q

the anterior jugular vein arises near the () from small veins underneath the chin

A

hyoid bone

26
Q

the ant jug vein terminates into the () or ()

A

EJV or subclavian v

27
Q

where is the jugular venous arch

A

above the suprasternal notch, the left and right ant jug vein unite

28
Q

what presents problems with emergency tracheostomy

A

jugular venous arch being cut

29
Q

what venous structure is not present in everyone

A

jugular venous arch

30
Q

what separates the two triangles of the neck

A

anterior and posterior

31
Q

origin of scm

A

manubrium and medial third of clavicle

32
Q

insertion of scm

A

mastoid process of temporal bone

33
Q

nerve supply of scm

A

spinal part of accessory nerve

c2,3

34
Q

action of scm

A

bilaterally: extend head at atlanto occipital jt, flex neck at cerv vert
unilat: laterlaly bends the neck ipsilaterally, and rotates head contralaterally

35
Q

what is torticollis/wryneck

A

shortening of scm (congenital) or spasmodic contraction of scm

36
Q

whow do baby get torticollis

A

when baby pulled out (fibrosis make it permanent)

37
Q

what is the borders of the post triangle

A

ant: scm
post: trapezius muscle
inf: middle third of clavicle

38
Q

what divides the posterior triangle of neck

A

inferior belly of omohyoid muscle

39
Q

where is the occipital triangle

A

b/w scm, trap, and inferior belly of omohyoid

40
Q

where is the supraclaviular triangle located

A

smaller triangle b/w inferior part of scm, inferior belly of omohyoid and middle third of clavicle

41
Q

what can you feel in an occipital triangle

A

lymph nodes

42
Q

what is another name for the supraclavicular tirangle

A

subclavian triangle cause it contains the subclavian artery and vein

43
Q

what are the contents of the posterior triangle a (4), veins (3) nerves (3)

A

arteries: subclavian, superficial transverse cervical, suprascapular, occipital artery
veins: external jugular, its tributaries, subclavian vein
nerve: brachial plexus, spinal accessory, branches of cervical plexus

44
Q

occipital artery is a branch of the

A

external carotid/jugular a

maris ga 2 (8 decks)

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