Head And Neck Lecture 2

Front 1

ansa cervicalis is made from what nerves?

Back 1

C1 C2 C3

Front 2

Name branches off of ansa cervicallis going from inferior root (C2,C3) to superior root (C1)

Back 2

Inferior belly Omohyoid, sternohyoid, sternothyroid, superior belly omohyoid.

Front 3

C1 hitches a ride with what nerve?

Back 3

CN XII (hypoglossal)

Front 4

After C1 gives loops to superior root what are the two muscles innervated?

Back 4

thyrohyoid and geniohyoid.

Front 5

Ansa cervicallis innervates what?

Back 5

innervates all strap muscles except thyrohyoid (it innervates inferior belly of omohyoid, sternohyoid and sternothyroid and superior belly of omohyoid)

Front 6

boundaries of carotid artery?

Back 6

superior belly of omohyoid, posterior belly of digastric, and anterior border of sternocleidomastoid.

Front 7

what nerve supplies SCM?

where is it located

Back 7

CN XI (Accessory)

on deep surface near mastoid

Front 8

CN XII name and function?

Back 8

Hypoglossal does motor to tongue

Front 9

three branches of vagus nerve?

Back 9

superior internal and external laryngeal nerve

Front 10

internal laryngeal nerve is located where? sensory or motor?

Back 10

sensory, it is located thyroid and hyoid on thryohyoid membrane to go into larynx.

Front 11

internal jugular and corrotid artery has what nerve between?

Back 11

vagus?

Front 12

deep vessels of the neck....surrounded by corotid sheath?

Back 12

Carotid arteries, internal juglar and vagus nerve (CN X)

Front 13

common corrotid has how many branches in neck?

Back 13

none except for terminal (internal and external branches)

Front 14

Internal branches has how many branches in neck?

Back 14

none. it along with vertebral artery are only supplies to brain

Front 15

external has how many branches in neck?

Back 15

it supplies much of neck and face....

Front 16

where does common make junction

Back 16

around hyoid bone

Front 17

what is carotid body?

supplied by what?

Back 17

chemorecptor (o2, co2)
cranial nerves IX and X

Front 18

carotid sinus
supplied by what?

Back 18

baronreceptor pressure
cranial nerves IX and X

Front 19

external carotid branches in neck and head from inferior to superior...

Back 19

superfical thyroid
ascending pharyngeal
linguil artery
occipital
facial (occip and facial usually on same plane goin in opposite directions)
posterior auricular
maxillary
superficial temporal
(the last three are not in neck but in head)

Front 20

branches of internal jugular vein in neck?

Back 20

occiptal vein
common facial vein
linguil vein
superior thyroid vein
middle thyroid vein

Front 21

how many veins drain thyroid vein?

Back 21

3...two (superior and middle flow into internal jugular.)

Front 22

borders of submental triangle?

Back 22

body of hyoid, right and left anterior bellies of digastric muscles, mylohyoid muscles for floor

Front 23

submental triangle is innervated by what nerve?

Back 23

it is pharyngear arch 1 so it is CN V mandibular branch (Vsub3)

Front 24

nerve supply of digastric muscle?

Back 24

anterior belly is CN V3 (mandibular branch of trigeminal)

posterior belly is CN VII (Facial)

Front 25

name two bony landmarks of mandible

Back 25

mylohyoid line. digastric fossa...

Front 26

borders of submandibular gland?

Back 26

anterior belly of digastric, posterior belly of digastric, and mandible (inferior border)

Front 27

main component of submandibular triangle?

Back 27

submandibular gland

Front 28

what innervates mylohyoid? branch off of what?

Back 28

nerve to mylohyoid branch of CN V sub3 (Mandibular branch of trigeminal)

Front 29

muscle that attaches from temporal styloid process to hyoid? what innervates it?

Back 29

stylohyoid innervated by CN VII (facial)

it is second pharyngeal derivative.

Front 30

mylohyoid nerve supplies what?

Back 30

mylohyoid and anterior digastric (branch of CN V3)

Front 31

stylohyoid splits...what goes through this split?

Back 31

tendon of posterior belly of digastric.

Front 32

where does thoracic duct enter venous system?

Back 32

at junction of subclavian vein and internal jugular vein.

Front 33

subclavian artery goes posterior to and subclavian vein goes anterior to what muscle?

Back 33

anterior scalene muscle

Front 34

arteries in root of neck?

Back 34

subclavian artery
vertebral artery
thyrocervical trunk
suprascapular artery
transverse cervical artery
inferior thyroid artery
internal thoracic artery
costocervical trunk

Front 35

nerves in root of neck?

Back 35

vagus and phrenic -- vagus is part of carotid sheath so it is found right there with teh common carotid artery

Front 36

arteries of carotid sheath?

Back 36

common carotid and internal carotid arteries.

Front 37

two muscles that attach to mastoid process?

Back 37

sternocleidomastoid and posterior belly of digastric.

Front 38

hole that is directly anterior to mastoid process?

Back 38

external acoustic meatus

Front 39

fossa that is directly anterior to external acoustic meatus?

Back 39

mandibular fossa.

Front 40

arch that is anterior and superior to mandibular fossa?

Back 40

zygomatic arch/process

Front 41

stylomastoid foramen is located where? what exits from it?

Back 41

located between styloid and mastoid processes and facial nerve (CN VII) exits

Front 42

main thing going through parotid gland?

Back 42

facial nerve (CN VII)

Front 43

Vesicles going through parotid gland?

Back 43

retromandibular vein, and external carotid artery, and facial nerve (CN VII)

Front 44

retromandibular vein and the posterior auricular vein join to become what?

Back 44

external jugular vein

Front 45

maxillary artery goes into what

Back 45

Infratemporal fossa

Front 46

external coratid ends at what two arteries?

Back 46

maxillary artery and superficial temporal

Front 47

name a branch of superficial temporal artery...

Back 47

transverse facial artery

Front 48

deep nodes of all lymph receive lymph from entire head and neck and collect into the jugular lymph trunk in th elow nexk what does this trunk drain into?

Back 48

on left the trunk drains into the thoracic duct before it drains into subclavian vein....on right it drains via right lymphatic duct into the junction of right subclavian and internal jugular veins.