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SMUPAFall-Anatomy > Neck Vasculature and Lymph > Flashcards

Neck Vasculature and Lymph Flashcards

MOD3- PASMU

1
Q

-Name the neck fascia forming each compartment

A

Superficial fasica

Deep fascia- 1. investing fascia 2. Carotid sheath 3. Pretracheal fascia, 4. Prevertebral fascia

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2
Q

-What contents are in each compartment and relationships between these structures

A

Superficial fasica- fat in neck continuous with rest of body.
Contents: Dorsal rami-spinal nerves
Ventral rami- from cervical plexus
Muscle of facial expressions

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3
Q

What is the danger space in the neck

A

RETROPHARYNGEAL DANGE SPACE

  • btwn prevertebral anteriorly and pretracheal posteriorly
  • potential space
  • opens inferiorly into mediastinuem, pathway for infectin
  • esophagus perforatin occure commonly
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4
Q

What muscles form the boundaries of each triangle and subtriangle of the neck?
What are the Innervation & action of these muscles and cutaneous innervation of the neck

A

SCM- CN XI- ispilateral lateral flexion, contralateral rotation. Post border Divides ant and post triangles.
Trapezius- CN XI

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5
Q

Describe neck vasculature Pathway and distribution and pulse points of major arteries

A

by ECA and subclavian, Drain IJV EJV and subclavian
Subclavian A. - R off braciocephalic trunk, L dircet aorta (pass post to ant scalen m)

Artiers name for where the going. ICA (inside cranium)

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6
Q

What Contributes/ forms the circle of Willis

A

not the best arterial anastomoses
PRIMARILY BLOOD FROM 2 AA-
1. INTERNAL COMMON CAROTID A.
2. RL VETERBRAL A.

INTERNAL COMMON CAROTIS HAD NO BRANCES IN NECK
Neck-
RAortic arch__Brachiocephalic a._R sublcavian_R carotid
L Aortic arch_R subclavia_R carotid
R/L Subclavian_R/L vertebral a. (ENTER transvers foramina)(ENTER foramen magnum)
RL vertebral aa. from._Basilar (ant. a on bone FX red flag)
Basilar a__Post and Ant. cerebral aa.
Internal carotid (enter carotid canal) _opthalmic a, middle a., anterior cerebral a.
Anterior communicating-connects circle (horizontal btwn RL anterior cerebral)
Posterior communicating-connects circle (vertical connections btwn RL ICA.

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7
Q

WhatPathway and drainage of major veins

A

Retromandibular v. (superfical tempor and maxillayr v)

External Jugular v.-(union of post. retromandibular and post. auricular v.)

Internal jugular v. (sigmoid sinus) reevie from thyroid vein

Subclavian v.- receives EJV, upper limb
Brachiocephalic v. (IJV and subclaina v.)- forms SVC, inf thyroid v, vertebral v.

Brain
Ceredral veins drain to:
Dural sinues- vein like, btnw dura mater layers inside cranium
Sigmoid- most dural sinuses drain here
BECOMES IJV AT LEVEL OF JUGULAR FORAMEN
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8
Q

Describe the locations of the major palpable lymph nodes in the head & neck

A

NO LN IN FACE OR SCALP: lymp drains to:
PERICERVICAL COLLAR OF NODES
submental, submandiula, peraucilar, postauricular, ocipital

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9
Q

Deep fascia-What contents are in each compartment and relationships between these structures

A

Relationship-organized into comparts contains Investing, carotid, pretracheal, prevertebral.
allows movement w/ min. friction
Spaces may provide pathway for infection

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10
Q
  1. investing fascia What contents are in each compartment and relationships between these structures
A

Relationship- surrounds entire neck, thus contains all compartments
splits to includue SCM and Traps, infrahyodi m.
Submandiuclar gland
Parotid gland

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11
Q
  1. Carotid sheath What contents are in each compartment and relationships between these structures
A 
Relationship- blends with pre tracheal and vertbral fascia/compartment
Vacsulature compartment
contains common and internal carotid aa
Assoc. GVEs
Internal Jug v.
Vagus n
Caroid sinus
Lymph
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12
Q
  1. Pretracheal fascia-What contents are in each compartment and relationships between these structures
A 
Relationship-w/carotid
Visceral compartment
Starts from hyoid bone to fibrous pericardium (why axiety, vagus, lump in throat)
thyroid and parathyroid gland (encloses)
tracheal/larynx
Esophagus/pharynx
Buccopharyngeal fascia (posterior)
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13
Q
  1. Prevertebral fascia -What contents are in each compartment and relationships between these structures
A

Vertrbral compartment
cervical vertebrae and assoc m.
Blends with endothoracic fascia inferiolry
Extends laterally as AXILLArY SHEATH

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14
Q

Posterior Triangle

A 
Post. SCM and Ant. Trapezius
mid 1/3 clavicle
Roof-investing fascia
Floor- preverteberal fascia
splenus capitus
levator scapula
Ant, mid. Post scalene-lateral flex respirotory-phrenic n.
NERVES- cervical plexus, roots of brachial plexus
CN XI
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15
Q

Anterior Triangle

A

Anterior midline
Ant border of SCM
Inf border of Mandible
Nerves-

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16
Q

What muscle divide ant. triangle further?

A

Ant and post bellies of digastric m
Surprahyoid- (CN V3 CNVII) Digastric-depresses mandible ant and post belly (near IJV). Defines the submandicular and submental triangle.
Mylohyoid- floor of the oral cavity

Sup belly of omohyoid m
Infrahyoid-investing layer of muscular triangle, omohyoid
Superficial- 2 muscles central tendon. Further subdivides the ant. triangle. Sternohyoid (ansa cervicalis)
Deep- Sternothyroid, Thyrohyoid (C1)

17
Q

Interscalene Triangle

A 
Braiachal plexus
Axillary sheath
1st rib
Subclavia a
NOT IN  TRIANGLE-Subclavian vein (cross ant scalene)
18
Q

Cervical Plexus

A

ventral rami C1-C4
deep to SCM
Cutanue merge middle of post. border of SCM at
NERVE POINT OF NECK
CN XII- Hypoglossal (towards oral cavity
CN X (inside carotid sheath)-larnyx and pharnx branch
Innervates- infrahyoid, prevertrbarl muscles, diaphragm via phrenic n.

19
Q 
Loop by sternohyoid and omohyoid
innervates infrahyoid muslces
location 
C1-C3
Ant of VAgus
ANt. IVJ ICA
A

Ansa Cervicalis

20
Q

PULSE POINT

A

Carotid triangle - close to trachea

Facial Artery- mandible inf (1/2 btwn protuber and angle)

21
Q

Contents of carotid sheath

Carotid Triangle

A 
IJV
Vagus n.
Common Carotid a.
Triangle
Base inf. mandible and Digastric m.
medial Thyrohyoid m.
lateral SCM
22
Q

Carotid sinus

A 
Before common carotid bifurcation
small dilation
REACTS to arterial pressure
Contains CAROTID BODY
CN XI and X
Baroreceptor
23
Q

Carotid Body

A

maintains O2 levels
CN XI and X
Chemoreceptor

24
Q

ICA- NO Branches in neck
w/in carotid sheath
enters carotid canal
supplies ANT brain, orbit and nasal cavity
Branches traverse cavernous sinus
ophthalmic a- orbit, eye, nasal cavity
ant. and middle cerebral (circle of willis)

A

Internal carotid a.

25
Q

ECA
exits carotid sheath
MAJOR supplies neck external head
8 branches in neck
*Superior thyroid a.-larynx, thyroid gland, infrahyoid m.(larynegeal
Lingua a.- tongue oral
Facial a- travel throught parotid face muscle palatine tonsils, nasal and oral
Maxillary a (medial bifurcations).-infratemporal fossa, m. mastication, nasal, palate, teeth, meninges
Superficial temoporal a. -scalp face

A

External carotid a.

26
Q

Subclavian

A

1st part-med to ant scalene
Vertebral- LARGE, suppliesPOST brain, ocipital lobe. w/in tranverse foramina
Interal Thoracic
Thryocervical trunk- suprascapula (post scapula)
Inferior Thyroid- LARGE, thyroid and larynx
2nd part- Costocervical trunk
3rd part- Dorsal scapular a.

27
Q

Lymph nodes

A

Occipital nodes- SCLN
Post auricular nodes-SCLN

Periauricular - DCLN
Submandibular - DCLN
Submental- DCLN
Post. Cercical- DCLN
Tonsillar-DCLN
Supraclavicular - DCLN

Superficial cervical- DCLN
Deep Cervical- JUGULAR LYMPHATIC TRUNK RL

FINAL-LYMPHATIC TRUNK_THORACIC OR R LYMPHATIC DUCTS

SMUPAFall-Anatomy (9 decks)

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