Practical 3 Flashcards
1
Q
posterior triangle borders
A
- sternocleidomastoid
- trapezius
- clavicle
2
Q
posterior triangle floor
A
- anterior scalene
- middle/superior scalene
- levator scapulae
- splenius capitus
3
Q
posterior triangle muscles
A
omohyoid
4
Q
posterior triangle vasculature
A
- subclavian artery/vein
- external jugular artery/vein
5
Q
posterior triangle nerves
A
- accessory nerve
- phrenic nerve
- brachial plexus
6
Q
posterior triangle regions
A
- separated by omohyoid
- occipital triangle = superior
- supraclavicular = inferior
7
Q
anterior triangle borders
A
- mandible
- anterior cervical midline
- SCM
8
Q
suprahyoid region
A
- superior part of anterior triangle
- divided by digastric
- submental triangle
- submandibular triangle
9
Q
infrahyoid region
A
- inferior part of anterior triangle
- separated by superior omohyoid
- muscular triangle
- carotid triangle
10
Q
submental triangle borders
A
- digastric
- hyoid
- cervical midline superior to hyoid
11
Q
submental triangle floor
A
- geniohyoid
- mylohyoid
12
Q
submental triangle contents
A
- superior aspect of anterior jugular vein
- nerve to mylohyoid
13
Q
submandibular triangle borders
A
- mandible
- anterior and posterior bellies of digastric
14
Q
submandibular floor
A
- hypoglossus
- mylohyoid
15
Q
submandibular triangle contents
A
- submandibular gland
- hypoglossal nerve
- lingual artery/vein
- submental artery/vein
- facial artery exits
16
Q
carotid triangle borders
A
- omohyoid
- digastric
- SCM
17
Q
carotid triangle vasculature
A
- external/internal carotid arteries
- internal jugular vein
18
Q
carotid triangle nerves
A
- ansa cervicalis
- hypoglossal nerve
- vagus nerve
19
Q
muscular triangle borders
A
- superior omohyoid
- SCM
- cervical midline inferior to hyoid
20
Q
muscular triangle visceral contents
A
- thyroid
- parathyroid
- pharynx
21
Q
muscular triangle muscles
A
- omohyoid
- sternohyoid
- thyrohyoid
- sternothyroid
22
Q
eye muscle nerves
A
LR6 SO4 AO3
- lateral rectus = abducens
- superior oblique = trochlear
- all others = oculomotor
23
Q
carotid body
A
- bifurcation of common carotid
- measure O2
- glossopharyngeal and vagus nerves
24
Q
carotid sinus
A
- internal carotid
- measures BP
- glossopharyngeal nerves
25
external carotid branches
- superior thyroid
- ascending pharyngeal (posterior)
- lingual
- facial
26
platysma
- innervation: facial nerve
| - tenses skin of neck
27
sternocleidomastoid
- innervation: accessory nerve & C2, C3 branches
- alone: tilts head to its side
- together: flexes neck
28
mylohyoid
- innervation: trigeminal nerve
| - elevates hyoid
29
geniohyoid
- innervation: hypoglossal nerve
| - pulls hyoid anterosuperiorly
30
stylohyoid
- innervation: facial nerve
| - elevates and retracts hyoid
31
digastric
- innervation anterior: trigeminal
- innervation posterior: facial
- depresses mandible, raises hyoid
32
strap muscles innervation
- sternohyoid, sternothyroid, and omohyoid innervated by ansa cervicalis
- thyrohyoid innervated by hypoglossal
33
strap muscles action
depress the hyoid
34
artery anterior to the ear
superficial temporal artery
35
zone 1
clavicle to cricoid
36
zone 2
cricoid to angle of mandible
37
zone 3
angle to mandible to mastoid
38
thyroid vascular supply
- superior and inferior thyroid arteries
- superior = superior pole
- inferior = posterior thyroid
- inferior, middle, superior thyroidal veins
39
thyroid innervation
sympathetic
40
cricothyroid
- innervation: exterior laryngeal nerve
| - stretches and tenses vocal cord
41
orbicularis oris
innervation: facial nerve
42
buccinator
innervation: facial nerve
43
orbital fissures
- superior orbital fissure
- inferior orbital fissure
- optic canal
44
ear landmarks
- helix
- antihelix
- tragus
- antitragus
- concha
- lobule
45
muscle around mouth
orbicularis oris
46
muscles inferior to mouth
- depressor anguli oris
| - depressor labii inferioris
47
muscle from mouth to zygomatic
zygomaticus major/minor
48
forehead muscle
frontalis
49
muscles superior to mouth
- levator labii superioris
| - levator anguli oris
50
muscle around eye
orbicularis oculi
51
vermillion border
outer border of lips
52
oral commissure
corner where lips meet
