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Neuro 1: practical flashcards!!! > Laboratory checklist for the Neck > Flashcards

Laboratory checklist for the Neck Flashcards

1
Q

what is SCM innervated by?

A

spinal accessory n.

C2,3

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2
Q

muscle that is seen more posteriorly, right in front of trapezius? goes from manubrium to spinous process

A

splenius capitis

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3
Q

what is muscle that is seen closest to the SCM, and posterior to the scalenes?

A

levator scapulae

- it lies more anterior and close to the neck than splenius capitis

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4
Q

muscles through which the brachial plexus passes?

A

anterior and middle scalene
posterior fused to middle
all are innervated by ventral rami of cervical nn.

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5
Q

space between the scalenes through which the brachial plexus passes?

A

interscalene triangle

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6
Q

muscle that is seen directly anterior to the internal jugular, and passes over ansa cervicalis. goes from hyoid to clavicle.

A

omohyoid muscle: superior and inferior bellies.

innervated by ansa cervicalis

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7
Q

nerve seen coming from erbs point and going to innervate the superificial region behind the skull

A

lesser occipital n.

C2,3

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8
Q

nerve seen going up to ear region from cervical plexus

A

great auricular n.

C2,3

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9
Q

nerve seen coming out from under posterior edge of SCM and going medially

A

transverse cervical n.

C2,3

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10
Q

nerve seen coming out from under SCM and heading down to the chest

A

supraclavicular C3,4

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11
Q

nerve seen lying on top of levator scapula, and sandwiched between splenius capitis and diving deep, gives off branch to the SCM

A

spinal accessory n.

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12
Q

brachial plexus? what are the portions

A

superior, middle, inferior

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13
Q

artery seen lateral to anterior scalene?

A

third portion of subclavian a.

- gives off dorsal scapula a - would jut out laterally very quickly

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14
Q

what artery branches off of second portion of subclavian artery and runs out laterally over the anterior scalene and superiorly

A

transverse cervical a. (branch of thyrocervical trunk)

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15
Q

what artery runs lateral to the first portion of subclavian and goes down over the anterior scalene?

A

suprascapular a. (branch of thyrocervical trunk)

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16
Q

muscle of the neck

A

platysma

innervated by the cervical branch of the facial n.

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17
Q

vein that lies over the SCM, is more anterior and swings out laterally

A

EJV

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18
Q

vein that drains into EJV and is behind the ear?

A

posterior auricular v.

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19
Q

veins forming communications and going under chin between IJV and AJV

A

retromandibular v.

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20
Q

vein seen going straight up at the corner of chin?

A

facial v.

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21
Q

veins seen just lateral to necks midline, over superior branch of the omohyoid?

A

anterior jugular v.

22
Q

vine that is seen between facial v. and retromandibular vv. found laying on anterior SCM

A

communicating branch of the common facial v.

23
Q

what two things pierce the thyrohyoid membrane?

A

internal laryngeal n.

superior laryngeal branch of superior thyroid a.

24
Q

what a. runs through the brachial plexus?

A

dorsal scapular a. is seen running under medial trunk

25
Q

what muscle is seen just lateral to the sternohyoid m?

A

superior belly of omohyoid

n: ansa cervicalis

26
Q

muscles seen attaching medial to the hyoid bone of superior belly of omohyoid. is covering the thyroid gland

A

sternohyoid

N: ansa cervicalis

27
Q

two deep strap muscles? innervation?

A

sternothyroid (ansa cervicalis)

thyrohyoid (C1 via hypoglossal n.)

28
Q

parts of thyroid gland?

A

right and left lobes
isthmus (in middle) - located at tracheal rings 2-4
pyramidal lobe (most likely on left - remnant of thyroglossal duct)

29
Q

what are levels of bones?

A

hyoid = CV3
thyroid cartilage = CV4-5
cricoid cartilage = CV6

30
Q

what are arteries seen going to thyroid and where do they come from?

A

superior thyroid artery (branch of external carotid a.)

inferior thyroid artery (branch of the subclavian a.)

31
Q

what are the nerve is seen lying beween internal carotid and trachea? right up next to trachea?

A

recurrent laryngeal n.

32
Q

what nerve lies lateral to the common carotid?

A

vagus n.

33
Q

what nerve branches medially off of vagus and goes up superiorly above thyroid? what are its branches and where do they go?

A

superior laryngeal n.
internal laryngeal goes superiorly to thyrohyoid membrane
external laryngeal goes inferior (hasn’t been seen yet)

34
Q

this artery bifurcates at CV3 and comes off of brachiocephalic trunk on the right and directly off of aorta on right?

A

common carotid a.
internal carotid a. seen more deeply and laterally
external carotid artery is more medial/superior and gives off branches

35
Q

what are branches of external carotid artery and where do they go?

A
  • superior thyroid (descends)
  • ascending pharyngeal (seen posterior, hard to see, goes up)
  • lingual (2nd medial branch coming off, goes under digastric m., passes deep quickly)
  • facial (3rd medial branch coming off, curly and goes up under chin, seen in omohyoid triangle)
  • occipital (artery coming off lateral to facial a. goes posteriorly)
  • posterior auricular
    (ends branches are maxillary and superficial temporal, won’t see these)
36
Q

nerve under the anterior digastric, crosses external carotid, goes into tongue

A

hypoglossal n. runs with the lingual a.

37
Q

gland seen under mandible

A

submandibular gland

38
Q

muscle that makes a V under the chin? innervations?

A

anterior belly of digastric (mylohyoid branch of CN V)

posterior belly of digastric (digastric branch of CN VII)

39
Q

muscle seen anterior to the posterior belly of digastric muscle?

A

stylohyoid m. (digastric branch of CN VII)

40
Q

muscle seen forming the base of floor under the chin?

A

mylohyoid m. (CN V3, mylohyoid branch)

41
Q

artery seen first coming off of subclavian in first section and ascending and diving deep quickly?

A

vertebral a.

42
Q

trunk in the first portion of subclavian?

A

thyrocervical trunk

43
Q

what are branches off of thyrocervical and where do they go?

A
  • inferior thyroid a. (medial branch)
  • ascending cervical a. (goes up straight)
  • transverse cervical (passes out lateral on top of anterior scalene m.)
  • suprascapular a. (goes out laterall across ant. scalene and passes down)
44
Q

what is the second trunk seen under anterior scalene and what does it give off?

A

costocervical trunk: deep cervical a. (goes up and deep) and the highest intercostal a (descnds down and posterior)

45
Q

what is artery seen going inferior in the first portion of subclavian?

A

internal thoracic a.

46
Q

what is branch coming off of subclavian lateral to anterior scalene m?

A

dorsal scapular a.

47
Q

what nerve is seen running between the IJV and common carotid?

A

vagus n.

give off vagal cardiac nn.

48
Q

nerve seen on top of the anterior scalene?

A

phrenic n. C3,4,5

49
Q

thin nerve seen close to trachea

A

sympathetic trunk

see sympathetic cardiac nerves

50
Q

what are ganglia given off by sympathetic trunk

A
  • superior at C2 (C1-4)
  • middle ganglia C5,6 (C5-6) - seen crossing inferior thyroid a.
  • vertebral ganglia: surrounding vertebral a. (C7/8)
  • stellate ganglia: C7,8T1 (posterior and lowest)
51
Q

looping nerve from middle cervical or vertebral ganglia that wrap around surface of sublcavian a. medial to thyrocervical trunk and vagus, join inferior ganglia

A

ansa subclavia

52
Q

small vessel that enters root of neck b/w left border of esophagus and behind carotid sheath, dumps into jugulovenous angle on left

A

thoracic duct

Neuro 1: practical flashcards!!! (3 decks)

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