Anterior Cervical Triangle Flashcards Preview

SP16 Anatomy Exam 2 > Anterior Cervical Triangle > Flashcards

Flashcards in Anterior Cervical Triangle Deck (56):
1

Boundaries of the AC triangle

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

2

What nerve supplies the platysma?

Facial nerve

3

What are the 5 veins of the anterior triangle?

Facial V
Retromandibular V
Anterior Jugular V
Communicating branch
Internal Jugular V

4

What does the facial vein drain to?

From angle of eye and drains IJV

5

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

Posterior branch joins with posterior auricular and drains into EJV

6

Anterior jugular V drains where?

drains to EJV

7

What does the communicating branch connect to?

facial vein and AJV

8

What does the IJV drain?

Brain, anterior face, and cervical viscera

9

What veins join to make the retromandibular vein?

Maxillary vein and superficial temporal vein come together

10

Anterior branch of retromandibular joins and drains where?

Anterior branch and facial join and drain into the IJV

11

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

Common facial

12

Where is Erb's point?

Posterior surface of SCM in the middle

13

What emerges at the Erb's point?

Transverse Cervical nerve

14

What cervical levels is the transverse cervical n at

C2 C3

15

What does the transverse cervical nerve supply?

Skin of anterior cervical triangle

16

What are the 5 components of the cervical visercea?

Thyroid cartilage
Cricoid cartilage
Carotid Sheath
Thyroid Gland
Cupula of pleura

17

What are the 2 components of the thyroid cartilage?

Cricothyroid ligament
Cricothyroid muscle

18

What are the 3 components of the carotid sheath?

IJV
Carotid artery
Vagus nerve

19

What are the 5 arteries of the anterior triangle

common carotid a
external carotid a
internal carotid a
vertebral a
thyrocervical trunk

20

common carotid bifurcates to what two arteries?

external and internal carotid

21

what does the external carotid a supply?

external head and neck

22

what does the internal carotid artery supply?

anterior and mid brain

23

what does the vertebral a supply?

posterior brain

24

what does the thyocervical trunk supply?

lower neck

25

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

magna

26

The vertebral arteries join together to form what artery?

basalar a

27

The right common carotid artery begins where?

at the bifurcation of the brachiocephalic trunk

28

The left common carotid artery arises from where?

aortic arch

29

what are the terminal branches of the external carotid a

maxillary a and superficial temporal a

30

What are the 4 subdivisions of the anterior triangle?

Carotid triangle
submandibular triangle
submental triangle
muscular triangle

31

What are the four muscles of the suprahyoid?

Digastric
Mylohyoid
Stylohyoid
Geniohyoid

32

What muscles subdivide the ACT?

Suprahyoid
Infrahyoid
SCM

33

what are the 2 components of the digastric m?

anterior and posterior bellies

34

what are the 4 muscles of the infrahyoid muscles?

sternohyoid m
sternothyroid m
thyrohyoid m
omohyoid m

35

what are the 2 components of omohyoid m?

superior and inferior bellies?

36

why are there deep intermediate muscles?

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

37

what are the borders of the submandibular triangle?

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

38

what are the 5 components of the submandibular triangle

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

39

boundaries of the submental triangle?

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

40

What are the contents of the submental triangle?

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

41

boundaries of muscular triangle

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

42

muscular triangle contents

sternohyoid m
sternothyroid m
thyrohyoid m
visceral structures of neck

43

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

thyroid
parathyroid
trachea
esophagus
common carotid a

44

what are the boundaries of the carotid triangle

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

45

What are the nerves of the carotid triangle?

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

46

What are the arteries of the carotid triangle?

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

47

what are the 3 anterior branches of the external carotid?

Superior thyroid
lingual
facial

48

what are the 3 posterior branches of the external carotid?

ascending pharyngel a
occipital a
posterior auricular a

49

what does the superior thyroid artery supply?

superior thyroid gland

50

what does the lingual artery supply?

inferior surface of the tongue

51

what does the facial artery supply?

supply face

52

what does the ascending pharyngeal artery supply?

pharynx and tonsils

53

what does the occipital artery supply?

neck and scalp

54

what does the posterior auricular artery supply?

scalp behind the ear

55

what does the superior thyroid artery give off?

superior laryngeal artery

56

what does the superior laryngeal artery pierce?

thyrohyoid membrane