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HNSS > 3-Neck intro brainscape > Flashcards

3-Neck intro brainscape Flashcards

1
Q

Ascending pharyngeal artery supplies what

A

Deep aspect of pharynx Palate Tonsils

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2
Q

At what point in the spine does the trachea begin

A

C5/C6

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3
Q

Blood drainage of the trachea

A

Inferior thyroid vein to the brachiocephalic vein

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4
Q

Blood supply to the esophage

A

Inferior thyroid artery

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5
Q

Blood supply to the parotid gland

A

Posterior auricular artery Facial artery Superficial temporal artery

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6
Q

Blood supply to the trachea

A

Superior & Inferior thyroid arteries (from external carotid & thryocervical trunk of brachiocephalic)

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7
Q

Blood supply to thyroid

A

1) Superior Thyroid artery (from external carotid) 2) Inferior thyroid artery (from Thyrocervical trunk of subclavian)

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8
Q

Branches of the External Carotid Artery

A

*Main blood supply of the neckSome Anatomists Like Freaking Out Poor Medical Students Superior Thyroid Ascending pharyngeal Lingual Facial Occipital Posterior auricular Maxillary Superficial temporal (last two are terminal branches)

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9
Q

Branches of the Subclavian Artery

A

Vertebral Internal Thoracic Thyrocervical Trunk Costocervical trunk (VIT C)

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10
Q

Branches of the Vagus

A

1) Auricular 2) Pharyngeal 3) Superior laryngeal 4) Internal laryngeal 5) External laryngeal 6) Nerve to carotid body 7) Recurrent laryngeal PLAN^4

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11
Q

Carotid Sheath

A

Covers the internal jugular, vagus, and carotids

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12
Q

Carotid Sheaths

A

cover the carotid arteries, internal jugular veins, and vagus nerve

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13
Q

Cervical Fascia

A

1) Investing 2) Prevertebral 3) Pretracheal 4 + 5) Two carotid sheaths

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14
Q

Contents of the Occipital Triangle

A

*Accessory Nerve *Nerves to Levator scapula, dorsal scapular, and LTN may be here *Occipital and transverse cervical arteries

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15
Q

Deep Cervical Nodes

A

Located within and around carotid sheath *Receive from head and neck via submental, submandibular, retropharyngeal, occipital, retroauricular, superficial and deep parotid, and superficial cervical lymph nodes *Drain into jugular lymph trunks

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16
Q

From what does the right common carotid come off? The Left?

A

Right comes off the brachiocephalic trunk, left comes off the aortic arch directly (same with the subclavian)

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17
Q

General Investing fascia

A

Most superficial layer, surrounds entire neck deep to skin and subcutaneous tissue *Goes around both sides of the SCN & trap

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18
Q

How far do the lobes of the thyroid gland extend?

A

2nd to 4th tracheal rings

19
Q

In surgery of the thyroid, which nerves must you be careful of?

A

Recurrent laryngeal Superior laryngeal –>provide innervation to larynx, can cause hoarseness

20
Q

Innervation of infrahyoid muscles

A

All ansa cervicalis except thyrohyoid (C1)

21
Q

Innervation of scalene muscles

A

Cervical nerves

22
Q

Innervation of suprahyoid muscles

A

Mylohyoid : nerve to mylohyoid form inferior alveolar from V3 Anterior belly of digastric: nerve to mylohyoid from IA from V3 Posterior belly of digastric: VII Stylohyoid: VII Geniohyoid: C1 via hypoglossal nerve

23
Q

Innervation to cricothyroid muscle

A

external laryngeal nerve

24
Q

Interscalene Triangle

A

Formed by scalenus anterior and medius and the first rib *Transversed by the subclavian artery and brachial plexus

25
Q

Label the dermatomes

A

1= V1 2= V2 3= V3 4= C2 5= C3 6= C4 7= C5 8= T2 9= T3

26
Q

Muscles in the Muscular Triangle

A

Sternohyoid Sternothyroid Thyrohyoid

27
Q

Position of the external jugular vein in the neck

A

Superficial to the SCM

28
Q

Position of the Internal Jugular Vein in th neck

A

Deep to the SCM and lateral to the carotids

29
Q

Pretracheal Fascia

A

htin and limited to anterior part of neck just posterior ot the SCM

30
Q

Prevertebral Fascia

A

forms tubular sheath that encloses the vertebral columna nd themuscles that are plastered to it *Fuses with the anterior longitudinal ligament

31
Q

Scalenus anticus syndrome

A

narrowing of the interscalene triangle that compresses the subclavian artery and brachial plexus producing vascular and neurlogical impairment in the upper limb

32
Q

Superficial Cervical nodes

A

lie along the External Jugular Vein *Receive from occipital, retroauricular, superficial and deep parotids *Drain to deep cervical nodes

33
Q

Superior thyroid artery supplies what

A

thyroid larynx anterior neck muscles

34
Q

Venous drainage from thyroid

A

1) Superior thyroid vein–> into Internal Jugular 2) Middle thyroid vein–> into Internal Jugular 3) Inferior thyroid vein –> left brachiocephalic vein

35
Q

What are the contents of the Carotid Triangle

A

*External Carotid *Proximal portions of the superior thyroid, ascending pharyngeal, lingual, occipital, and facial arteries *Portion of hypoglossal nerve that gives off the superior root of an ansa cervicalis

36
Q

What does the maxillary artery supply

A

Deep aspect of facial muscles Nasal cavity Paranasal sinuses Meninges of medial cranial fossa

37
Q

What is the clinical significance of the Greater Cornu (horn) of the hyoid bone?

A

At its tip the hypoglossal nerve and lingual artery pass

38
Q

What structures would be found on an axial CT at the level of the hyoid bone?

A

*Mandible *Mylohoid *Submandibular gland *External carotid *C4 *SCM

39
Q

What structures would be found on an axial CT at the level of the thyroid bone?

A

*Strap muscles *Might begin to see Trachea *C4 & C5 vertebrae

40
Q

Where does the common carotid bifurcate? Into what?

A

C6 –> Internal (laterally) and external (lies medially)

41
Q

Where does the esophagus begin?

A

Continuous with the pharynx, starts at the cricoid cartilage

42
Q

Where does the vagus run in the neck?

A

Between the internal jugular and the carotids

43
Q

Where is a tracheostomy usually performed?

A

Inferior to the thyroid isthmus

44
Q

Zones of the Neck

A

HNSS (17 decks)

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