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SP16 Anatomy Exam 2 > Anterior Cervical Triangle > Flashcards

Anterior Cervical Triangle Flashcards

1
Q

Boundaries of the AC triangle

A

Anterior: median line of neck
Posterior: SCM
Superior: inferior border of mandible

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2
Q

What nerve supplies the platysma?

A

Facial nerve

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3
Q

What are the 5 veins of the anterior triangle?

A 
Facial V
Retromandibular V
Anterior Jugular V
Communicating branch
Internal Jugular V
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4
Q

What does the facial vein drain to?

A

From angle of eye and drains IJV

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5
Q

What does the posterior branch of the retromandibular vein join and drain to?

A

Posterior branch joins with posterior auricular and drains into EJV

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6
Q

Anterior jugular V drains where?

A

drains to EJV

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7
Q

What does the communicating branch connect to?

A

facial vein and AJV

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8
Q

What does the IJV drain?

A

Brain, anterior face, and cervical viscera

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9
Q

What veins join to make the retromandibular vein?

A

Maxillary vein and superficial temporal vein come together

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10
Q

Anterior branch of retromandibular joins and drains where?

A

Anterior branch and facial join and drain into the IJV

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11
Q

What does the anterior branch of the retromandibular and facial vein called?

A

Common facial

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12
Q

Where is Erb’s point?

A

Posterior surface of SCM in the middle

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13
Q

What emerges at the Erb’s point?

A

Transverse Cervical nerve

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14
Q

What cervical levels is the transverse cervical n at

A

C2 C3

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15
Q

What does the transverse cervical nerve supply?

A

Skin of anterior cervical triangle

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16
Q

What are the 5 components of the cervical visercea?

A 
Thyroid cartilage
Cricoid cartilage
Carotid Sheath
Thyroid Gland
Cupula of pleura
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17
Q

What are the 2 components of the thyroid cartilage?

A

Cricothyroid ligament

Cricothyroid muscle

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18
Q

What are the 3 components of the carotid sheath?

A

IJV
Carotid artery
Vagus nerve

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19
Q

What are the 5 arteries of the anterior triangle

A 
common carotid a
external carotid a
internal carotid a
vertebral a
thyrocervical trunk
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20
Q

common carotid bifurcates to what two arteries?

A

external and internal carotid

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21
Q

what does the external carotid a supply?

A

external head and neck

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22
Q

what does the internal carotid artery supply?

A

anterior and mid brain

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23
Q

what does the vertebral a supply?

A

posterior brain

24
Q

what does the thyocervical trunk supply?

A

lower neck

25
Q

what foramen does the vertebral artery go through to get to the brain?

A

magna

26
Q

The vertebral arteries join together to form what artery?

A

basalar a

27
Q

The right common carotid artery begins where?

A

at the bifurcation of the brachiocephalic trunk

28
Q

The left common carotid artery arises from where?

A

aortic arch

29
Q

what are the terminal branches of the external carotid a

A

maxillary a and superficial temporal a

30
Q

What are the 4 subdivisions of the anterior triangle?

A

Carotid triangle
submandibular triangle
submental triangle
muscular triangle

31
Q

What are the four muscles of the suprahyoid?

A

Digastric
Mylohyoid
Stylohyoid
Geniohyoid

32
Q

What muscles subdivide the ACT?

A

Suprahyoid
Infrahyoid
SCM

33
Q

what are the 2 components of the digastric m?

A

anterior and posterior bellies

34
Q

what are the 4 muscles of the infrahyoid muscles?

A

sternohyoid m
sternothyroid m
thyrohyoid m
omohyoid m

35
Q

what are the 2 components of omohyoid m?

A

superior and inferior bellies?

36
Q

why are there deep intermediate muscles?

A

flexibility with hyoid bone. breathing talking, swallowing, eating.

37
Q

what are the borders of the submandibular triangle?

A

superior boundary: inferior border mandibule
anterior/inferior boundary: anterior belly digastric m
posterior/inferior boundary: posterior belly digastric m

38
Q

what are the 5 components of the submandibular triangle

A

submandibular salivary gland and lymph nodes
facial vessels
hypoglossal nerve
marginal mandibular branch of facial nerve
mylohyoid branch of CN V3

39
Q

boundaries of the submental triangle?

A

Left lateral boundary: left anterior belly digastric m
right lateral boundary: right anterior belly digastric m
inferior boundary: hyoid bone

40
Q

What are the contents of the submental triangle?

A

Mylohyoid muscle (floor of mouth)
submental lymph nodes
few small veins

41
Q

boundaries of muscular triangle

A

anterior boundary: median line of neck
posterior/superior boundary: superior belly of omohyoid m
posterior/inferior boundary: SCM

42
Q

muscular triangle contents

A

sternohyoid m
sternothyroid m
thyrohyoid m
visceral structures of neck

43
Q

What are the visceral structures of the neck of the muscular triangle?

A 
thyroid
parathyroid
trachea
esophagus
common carotid a
44
Q

what are the boundaries of the carotid triangle

A

anterior/superior boundary: posterior belly digastric m
anterior/inferior boundary: superior belly of omohyoid m
posterior boundary:
SCM

45
Q

What are the nerves of the carotid triangle?

A 
accessory
vagus
hypoglossal
ansa cervicalis (C1-C3)
laryngeal n (CN X branches)
46
Q

What are the arteries of the carotid triangle?

A

common, internal, and external carotid and 6 branches of the external carotid (3 anteriors and 3 posteriors)

47
Q

what are the 3 anterior branches of the external carotid?

A

Superior thyroid
lingual
facial

48
Q

what are the 3 posterior branches of the external carotid?

A

ascending pharyngel a
occipital a
posterior auricular a

49
Q

what does the superior thyroid artery supply?

A

superior thyroid gland

50
Q

what does the lingual artery supply?

A

inferior surface of the tongue

51
Q

what does the facial artery supply?

A

supply face

52
Q

what does the ascending pharyngeal artery supply?

A

pharynx and tonsils

53
Q

what does the occipital artery supply?

A

neck and scalp

54
Q

what does the posterior auricular artery supply?

A

scalp behind the ear

55
Q

what does the superior thyroid artery give off?

A

superior laryngeal artery

56
Q

what does the superior laryngeal artery pierce?

A

thyrohyoid membrane

SP16 Anatomy Exam 2 (14 decks)

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