- geniohyoid - stylohyoid - mylohyoid - diagstric

- thyrohyoid - sternohyoid - sternothyroid - omohyoid

Neck (2) Flashcards by Jake Aleck

anterior, posterior, superior, apex, roof, and floor of ANTERIOR TRIANGLE

anterior - anterior median line
posterior - SCM
superior - inferior border of the mandible
apex - jugular notch
roof - subcutaneous fascia and platysma
floor - pharynx, larynx, and thyroid gland

How well did you know this?

Not at all

Perfectly

subdivided triangles of the ANTERIOR TRIANGLE

carotid triangle
submandibular triangle
submental triangle
muscular triangle

How well did you know this?

Not at all

Perfectly

origin, insertion, innervation, action of MYLOHYOID M

origin - mylohyoid line of mandible
insertion - median raphe and hyoid bone
innervation - nerve to mylohyoid (V3)
action - raises floor of oral cavity

How well did you know this?

Not at all

Perfectly

origin, insertion, innervation, action of DIGASTRIC M

suprhyoid m

origin - mastoid process
insertion - anteromedial aspect of mandible
innervation - posterior belly (facial nerve (CN VII)), anterior belly (V3, nerve to mylohyoid)
action - stabilizes, raises, and anterior/posterior movement of anterior and posterior belly of hyoid bone

How well did you know this?

Not at all

Perfectly

origin, insertion, innervation, action of GENIOHYOID M

suprahyoid m

origin - genial tubercle of mandible
insertion - hyoid bone
innervation - C1, nerve to geniohyoid
action - raises hyoid bone

How well did you know this?

Not at all

Perfectly

origin, insertion, innervation, action of STYLOHYOID M

suprhyoid m

origin - styloid process
insertion - hyoid bone
innervation - facial nerve (CN VII)
action - moves hyoid posteriosuperiorly

How well did you know this?

Not at all

Perfectly

origin, insertion, innervation, action of THYROHYOID M

infrahyoid m

origin - oblique line of thyroid cartilage
insertion - hyoid bone
innervation - nerve to thyrohyoid (C1)
action - lowers hyoid bone or raises thyroid cartilage or stabilizes both structures during vocalization

How well did you know this?

Not at all

Perfectly

origin, insertion, innervation, action of STERNOHYOID M

infrahyoid m

origin - posterior aspect of manubrium of sternum
insertion - hyoid bone
innervation - ansa cervicalis (C1-C3)
action - lowers hyoid bone or stabilizes hyoid during vocalization and depression of the mandible

How well did you know this?

Not at all

Perfectly

origin, insertion, innervation, action of STERNOTHYROID M

infrahyoid m

origin - manubrium
insertion - oblique line of thyroid cartilage
innervation - ansa cervicalis (C1-C3)
action - lowers thyroid cartilage or stabilizes same during vocalization and depression of the mandible

How well did you know this?

Not at all

Perfectly

origin, insertion, innervation , action of OMOHYOID M

infrahyoid m

origin - superior border of scapula
insertion - hyoid bone
innervation - ansa cervicalis (C1-C3)
action - superior belly lowers hyoid bone or may stabilize hyoid from below

How well did you know this?

Not at all

Perfectly

suprahyoid muscles

geniohyoid
stylohyoid
mylohyoid
diagstric

How well did you know this?

Not at all

Perfectly

infrahyoid muscles

thyrohyoid
sternohyoid
sternothyroid
omohyoid

How well did you know this?

Not at all

Perfectly

muscles relaxed and contracted in SWALLOWING

relaxed - infrahyoids

contracted - suprahyoids

How well did you know this?

Not at all

Perfectly

muscles contracted in JAW OPENING

infra and suprahyoids by stabilizing hyoid bone

mainly supra’s

How well did you know this?

Not at all

Perfectly

muscles during vocalization

supra and infrahyoids alternate between contracting and relaxing
(dependent upon sounds made)

How well did you know this?

Not at all

Perfectly

major contents of the SUBMANDIBULAR TRIANGLE

submandibular salivary gland
facial vein and submandibular lymph nodes
facial artery
hypoglossal nerve

How well did you know this?

Not at all

Perfectly

major contents of SUBMENTAL TRIANGLE

submental lymph nodes

How well did you know this?

Not at all

Perfectly

major contents of MUSCULAR TRIANGLE

infrahyoid muscles
lower part of larynx
upper trachea
thyroid
parathyroid glands

How well did you know this?

Not at all

Perfectly

two lobes (L and R) of the thyroid gland are united in the midline by the

isthmus

How well did you know this?

Not at all

Perfectly

remnant of the embryological thyroglossal duct

pyramidal lobe of thyroid gland

How well did you know this?

Not at all

Perfectly

what two arteries supply the thyroid gland

superior and inferior thyroid arteries

Salfop

How well did you know this?

Not at all

Perfectly

four in number (two on each side), are located on the posterior aspect of the thyroid gland

parathyroid glands

How well did you know this?

Not at all

Perfectly

a small protein that takes part in the control of calcium and phosphorus homeostasis

parathyroid hormone

How well did you know this?

Not at all

Perfectly

superior, inferior, posterior, and floor of CAROTID TRIANGLE

Study These Flashcards

inferior - superior belly of omohyoid
superior - posterior belly of digastric
posteriorly - SCM
floor - thyrohyoid, hypoglossus and middle and inferior constrictor muscles of the pharynx

major contents of CAROTID TRIANGLE

- common carotid (split to internal and external carotid) - internal jugular vein - hypoglossal n (CN 12) - accessory n (CN 11) - vagus n (CN 10)

which carotid vessel is more lateral

internal carotid artery - more lateral | external carotid artery - more medial

baroreceptors to monitor blood pressure are located here

carotid sinus

branches of the aortic arch

- brachiocephalic trunk (divides into: R common carotid a, R subclavian a) - L common carotid a - left subclavian a

common carotid artery motor and sensory innervation

sensory - glossopharyngeal n (CN IX) | motor - vagus n (CN X)

highly vascularized are between internal and external carotid arteries just above the bifurcation

carotid body

ophthalmic branch supplies the forehead and anastomoses with facial and superficial temporal a

internal carotid a

SALFOP SUPER T MAX

branches of the external carotid a

names of SALFOP ST M

- superior thyroid a (superior laryngeal a) - ascending pharyngeal a - lingual a - facial a - occipital a (pinned down by hypoglossal n) - posterior auricular a - superficial temporal a - maxillary a

these two veins come together to form the brachiocephalic vein

internal jugular and subclavian v

- parallel with external jugular vein - receive drainage mainly from occipital nodes, retro auricular nodes and parotid nodes, with some drainage from anterior cervical nodes

superficial cervical nodes

- parallel with internal jugular vein | - receive drainage from superficial face and deep structures through submandibular, submental, and jugulodigastric nodes

deep cervical nodes

lies just below the posterior belly of digastric m

jugulodigastric node

terminates at the junction of the internal jugular vein and subclavian vein (lymphatics of the neck)

R jugular trunk/lymphatic duct

enters thoracic duct just before it enters the venous system at the junction of the internal jugular vein and subclavian vein

L jugular trunk

drains left head and neck, left trunk and upper extrem, entire abdomen and lower body

thoracic duct

T/F all lymph must pass through at least one node before entering the venous system

true

drains the right head and neck, right upper extrem and right thorax

R lymphatic duct

branches of the Vagus n (CN X)

- pharyngeal n - superior laryngeal n (internal and external laryngeal n) - cardiac plexus n - recurrent laryngeal n (R loops behind subclavian a, L loops behind the aortic arch)

glossopharyngeal n (CN IX) motor and sensory

motor - stylopharyngeus, parotid gland | sensory - tast (post 1/3 tongue), pharynx, tonsilar sinus, pharyngotympanic tube, middle ear cavity

``` Vagus n (CN X) motor and sensory ```

motor - palate, pharynx, larynx, trachea, bronchial tree, heart, GI tract to the left sensory - pharynx, larynx; reflex for bronchial tree, lungs, heart, GI tract to left

spinal accessory n (CN XI) | motor

SCM, trapezius

``` hypoglossal n (CN XII) motor ```

all intrinsic and extrinsic muscles of the tongue

what nerve crosses anterior to scalene muscles

phrenic nerve

large ganglion supplies structures of the head via internal carotid plexus, also superior cardiac nerves

superior cervical ganglion (C1-C4)

supplies the thyroid gland and middle cardiac nerve, runs with external carotid artery and its branches thereby effect vasoconstriction

middle cervical ganglion (C5-C6)

fuses with thoracic region to form stellate ganglion, nerves from here run to the heart

inferior cervical ganglion (C7-C8)

lesion of the sympathetic chain pathway will result in

horner's syndrome - pupil constriction - dry face - vasodilation - "ptosis syndrome"

brachial plexus - lateral cord

lateral pectoral, musculocutaneous, median

brachial plexus - medial cord

medial pectoral, ulnar, median, medial brachial, medial antebrachial

brachial plexus - posterior cord

axillary, radial, upper subscapular, lower subscapular, thoracodorsal

brachial plexus - supraclavicular branches

- dorsal scapular - suprascapular - long thoracic - n to subclavius

structures within the superior thoracic aperture

- thoracic duct - vagus nerve - phrenic nerve - brachial plexus - recurrent laryngeal nerve - subclavian arteries and veins - common carotid arteries - sympathetic chain - apices of the L and R lungs

what is the major artery of the lateral neck

subclavian artery

VIT C sometimes D | subclavian artery branches

- vertebral - internal thoracic - thyrocervical trunk - inferior thyroid - transverse cervical - suprascapular - ascending cervical - costocervical trunk - supreme intercostal - deep cervical - dorsal scapular

Neck (2) Flashcards

(59 cards)