Anterior And Posterior Triangles Of The Neck

Front 1

What is the innervation of the submandibular gland?

Back 1

Superior Salivatory nucleus
Nervus Intermedius of Facial Nerve (CN VII)
Chorda Tympani
Lingual Nerve
Submandibular ganglion
SYNAPSE
Submandibular gland

Front 2

What are the boundaries of the neck?

Back 2

Superior: Mandible and Mastoid Process
Posterior: Trapezius
Inferior: Clavicle
Anterior: Midline of the neck

Front 3

What muscle divides the neck into two triangles?

Back 3

Sternocleidomastoid

Front 4

What are the two triangles of the neck?

Back 4

Anterior and Posterior

Front 5

What are the boundaries of the anterior cervical triangle?

Back 5

Superior: Body of Mandible, Mastoid and Styloid Process of Temporal Bone
Lateral and Inferior: SCM
Anterior: Midline of the neck

Front 6

How many triangles is the anterior cervical triangle divided up into?

Back 6

4

Front 7

What are the names of the triangles the anterior cervical triangle is divided into?

Back 7

Muscular
Carotid
Submandibular
Submental

Front 8

What are the contents of the muscular triangle?

Back 8

Infrahyoid muscles

Front 9

What are the borders of the muscular triangle?

Back 9

Superior-Lateral: Anterior Belly of Omohyoid
Lateral- Inferior: SCM
Medial: Midline of the neck

Front 10

What are the four infrahyoid muscles?

Back 10

Omohyoid,superior belly
Sternohyoid
Sternothyroid
Thyrohyoid

Front 11

Which of the strap muscles are in the same place but are superficial/deep to one another?

Back 11

Sternohyoid is superficial
Thyrohyoid is deep and superior
SternoTHYroid is deep and inferior

Front 12

What is the function of the strap/infrahyoid muscles?

Back 12

Raise and stabilize larynx and hyoid bone during swallowing and talking

Front 13

What is the origin and insertion of omohyoid?

Back 13

Origin: Scapula
Insertion: Lateral hyoid

Front 14

What is the origin and insertion of sternohyoid?

Back 14

Origin: Sternum
Insertion: Hyoid

Front 15

What is the origin and insertion of sternothyroid?

Back 15

Origin: sternum
Insertion: Thyroid Cartilage

Front 16

What is the origin and insertion of thyrohyoid?

Back 16

Origin: Hyoid
Insertion: Thyroid cartilage

Front 17

What provides innervation of the infrahyoid muscles?

Back 17

Ansa cervicalis

Front 18

What infrahyoid muscle does ansa cervicalis NOT innervate?

Back 18

Thyrohyoid

Front 19

What kind of innervation does the ansa cervicalis provide to the infrahyoid muscles?

Back 19

motor

Front 20

What composes ansa cervicalis?

Back 20

ventral rami of C1-C3

Front 21

What are the loops of ansa cervicalis?

Back 21

Superior root is C1-C2
Inferior root C2-C3

Front 22

Where is the ansa cervicalis located/can be found?

Back 22

Its located in the carotid sheath but its branches can be found in the muscular triangle

Front 23

What innervates thyrohyoid?

Back 23

Thyrohyoid is innervated by C1 fibers that piggy back on CN XII

Front 24

What supplies motor innervation to the larynx?

Back 24

Recurrent laryngeal

Front 25

What is the exception to the motor innervation of the larynx?

Back 25

Cricothyroid which is innervated by the superior laryngeal nerve or the external branch

Front 26

What are the boundaries of the carotid triangle?

Back 26

Anterior inferior: superior belly of omohyoid
Anterior-Superior: Posterior belly of digastric
Posterior-Anterior: Border of SCM

Front 27

what structures are located in the carotid sheath? (5)

Back 27

internal jugular
vagus
deep cervical lymph nodes
common carotid artery
internal jugular vein

Front 28

Where is the carotid sheath located?

Back 28

Deep to the SCM and omohyoid

Front 29

At what level does the common carotid divide into internal and external?

Back 29

Upper border of thyroid cartilage (C4)

Front 30

What are the two receptors located at the carotid bifurcation?

Back 30

Cartoid body
Carotid Sinus

Front 31

What does the carotid sinus do?

Back 31

Baroreceptor monitors blood pressure

Front 32

What does carotid body do?

Back 32

Chemo receptor monitors blood oxygen

Front 33

Where does the internal carotid give branches? External carotid?

Back 33

Internal gives branches in the skull, external gives branches in the triangle

Front 34

What are the branches of external carotid?

Back 34

Superior thyroid
Lingual
Facial
Ascending Pharyngeal
Occipital
Posterior Auricular

Front 35

What divides the subclavian into three branches?

Back 35

Anterior Scalene

Front 36

Where is the first, second and third division of the subclavian artery located?

Back 36

First - medial to anterior scalene
Second - deep to anterior scalene
Third - lateral to anterior scalene

Front 37

What is in the first division of the subclavian?

Back 37

Vertebral
Internal Thoracic
Thyrocervical Trunk

Front 38

What are the branches of the thyrocervical trunk (and their positions)?

Back 38

Suprascapular is most lateral
Then transverse cervical
Then suprascapular
Most medial is inferior thyroid

Front 39

What is in the second division?

Back 39

Costocervical trunk

Front 40

What are the branches of the costocervical trunk?

Back 40

Deep cervical
Superior intercostal

Front 41

What is in the third part of the subclavian?

Back 41

dorsal scapular

Front 42

What is the mneumonic for remembering the branches of external carotid?

Back 42

Some Angry Lady Figured Out P M S

Front 43

What is the positioning of the components of the carotid triangle?

Back 43

Medial: Common carotid
Lateral: Internal jugular
Deep: Vagus
Scattered is cervical lymph nodes
ansa embedded in the sheath

Front 44

What is the difference between the carotid body and the carotid sinus?

Back 44

Carotid sinus is the inflated part of the internal carotid
Carotid body is a structure sitting in the middle of the bifurcation of intl and extl carotid

Front 45

What are the boundaries of the submandibular triangle?

Back 45

Superior: Body of mandible and styloid process of temporal bone
Posterior Inferior: Posterior belly of digastric
Anterior Inferior: Anterior belly of digastric

Front 46

What does the submandibular triangle contain?

Back 46

Submandibular gland
Submandibular duct
Stylohyoid muscle
Mylohyoid muscle

Front 47

What is the origin and insertion of stylohyoid?

Back 47

Origin: Styloid process of temporal bone
Insertion: Hyoid bone

Front 48

What is the innervation of stylohyoid?

Back 48

CN VII facial

Front 49

What is the origin and insertion of mylohyoid?

Back 49

Origin: Body of mandible
Insertion: Midline raphe and hyoid

Front 50

What is the innervation of the mylohyoid?

Back 50

The mylohyoid branch of inferior aleovolar of V3 (trigeminal mandibular branch)

Front 51

What are the suprahyoid muscles? (3)

Back 51

Mylohyoid
stylohyoid
digastric

Front 52

What do the suprahyoid muscles do?

Back 52

elevate the mandible

Front 53

What is the path of the sublandibular duct?

Back 53

Exits submandibular gland anteriorly
Superficial to hyoglossus muscle
oral cavity near frenulum of tongue
Deep and then superficial to lingual nerve

Front 54

What are the borders of the submental triangle?

Back 54

Superior: anterior belly of right and left digastric
Inferior: Hyoid bone
Floor: Myohyoid

Front 55

What is the content of the submental triangle?

Back 55

Submental lymph nodes
Small veins that form anterior jugular veins

Front 56

What is the lymph drainage of the neck region?

Back 56

Deep cervical lymph nodes

Front 57

What is the lymphatic drainage of the submental region?

Back 57

Submental nodes
Juguloomohygoid node

Front 58

What are the two components of the posterior cervical triangle?

Back 58

Occipital triangle
Supraclavicular triangle

Front 59

What are the boundaries of the posterior triangle?

Back 59

Anterior: posterior border of SCM
Posterior: Anterior border of trap
Inferior: Clavicle

Front 60

What structure divides the two posterior triangles?

Back 60

Posterior belly of omohyoid

Front 61

What is the relationship of the two triangles?

Back 61

Occipital is superior then omohyoid then supraclavicular triangle

Front 62

What are the boundaries of the occipital triangle?

Back 62

Anterior: Posterior border of SCM
Inferior: inferior belly of omohyoid
Posterior: Trap
Floor: Splenius cervicus, Levator Scapulae

Front 63

What are the contents of the occipital triangle?

Back 63

Splenius muscle
Levator scapulae muscle
Nerves of cervical plexus

Front 64

What are the cervical plexus nerves?

Back 64

Supraclavicular
Lesser occipital
Greater auricular
Transverse cervical

Front 65

What other nerve besides the cervical plexus nerve is in the occipital triangle?

Back 65

Spinal accessory

Front 66

Where do all the nerves in the occipital triangle come from (not originate)?

Back 66

under SCm

Front 67

What cervical roots do each of the cerivcal plexus nerves come from?

Back 67

lesser occipital C2-C3
greater auricular C2-C3
transverse cervical C2-C3
supraclavicular C3-C4

Front 68

What are the borders of the supraclavicular triangle?

Back 68

Anterior: SCM
Superior: inferior belly of omohyoid
Superior-posterior: trap and inf belly of omohyoid
Floor: Middle and posterior scalenes

Front 69

What is the difference between digastric and omohyoid in the naming of the two parts?

Back 69

digastric is anterior and posterior
omohyoid is superior and inferior

Front 70

What are the most abundant structures in the supraclavicular triangle?

Back 70

Brachial plexus
Nerves from brachial plexus
Phrenic Nerve
Transverse cervical artery
suprascapular artery
Subclavian vein