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NS Exam 1 > Neck Myology > Flashcards

Neck Myology Flashcards

1
Q

What are the borders of the Posterior Triangle of the neck?

A

Anterior: Posterior Edge of Sternocleidomastoid M.

Posterior: Anterior Edge of Trapezius M.

Inferior: Clavicle

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2
Q

What are the contents of the Posterior Triangle of the neck?

A

Levator Scapulae M.

Anterior, middle, and posterior scalene M.s.

Inferior belly of Omohyoid M.

Splenius Capitus M.

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3
Q

What divides the Occipital Triangle and the Supraclavicular Triangle?

A

Inferior belly of Omohyoid M.

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4
Q

What are the contents of the supraclavicular triangle?

A

3rd part of subclavian A.

Suprascapular A.

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5
Q

What does the spinal accessory N. innervate? Which cranial N. is it?

A

CN XI

Innervates Sternocleidomastoid M. and Trapezius M.

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6
Q

A pt with a fibrous tissue tumor within the Sternocleidomastoid M. will most likely present with what disorder?

A

Congenital torticollis

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7
Q

A patient presenting with abnormal tonicity of the sternocleidomastoid and trapezius Ms. most likely has what disorder?

A

Spasmodic torticullis

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8
Q

A patient with a hematoma impinging on the Spinal Accessory N. most likely has what disorder?

A

Congenital Torticullis

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9
Q

What are the borders of the Anterior Triangle?

A

Median Line of the Neck

Sternocleidomastoid M.

Mandible

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10
Q

What are the muscular contents of the Anterior Triangle?

A

Mylohyoid M.

Geniohyoid M.

Digastric M.

Stylohyoid M.

Sternohyoid M.

Sternothyroid M.

Thyrohyoid M.

Superior Belly of Omohyoid M.

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11
Q

What divides the Submental Triangle from the Submandibular Triangle?

A

Anterior Belly of Digastric M.

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12
Q

What are the contents of the Submental Triangle?

A

Submental A.

Submental LNs

Small veins

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13
Q

What are the contents of the submandibular Triangle?

A

Submandibular gland

Hypoglossal N.

Nerve to Mylohyoid M.

Parts of Facial A.

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14
Q

What divides the Muscular triangle from the Carotid Triangle?

A

Superior Belly of the Omohyoid M.

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15
Q

What are the contents of the Muscular triangle?

A

Thyroid Gland

Parathyroid Glands

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16
Q

What are the contents of the Carotid triangle?

A

Common Carotid A.

Internal Jugular V.

Vagus N.

Hypoglossal N.

Spinal Accessory N.

Superior root of Ansa Cervicalis

Thyroid Gland

Larynx, Pharynx

Branches of cervical plexus

17
Q

What are the suprahyoid muscles?

A

Mylohyoid M.

Geniohyoid M.

Digastric M.

Stylohyoid M.

18
Q

What is the innervation of the Geniohyoid M.?

A

C1 via Hypoglossal N.

19
Q

What does the Mylohyoid N. innervate?

A

Mylohyoid M.

Anterior belly of Digastric M.

20
Q

What is the posterior belly of Digastric M. innervated by?

A

Facial N.

21
Q

What is the Stylohyoid M. Innervated by?

A

Facial N.

22
Q

What are the Infrahyoid Ms.?

A

Sternohyoid M.

Sternothyroid M.

Thyrohyoid M.

Omohyoid M.

23
Q

What does the Ansa Cervicalis innervate?

A

Sternohyoid M. (C1-3)

Sternothyroid M. (C2,3)

Omohyoid M. (C1-3)

24
Q

What is the thyrohyoid M. Innervated by?

A

C1 via Hypoglossal N.

25
Q

What is the action and innervation of the Platysma M.?

A

Draws corners of mouth down, skin of neck up (Yikes face)

Cervical Branch of Facial N.

26
Q

Where doe the pharyngeal constrictor muscles insert?

A

Median Raphe of Pharynx

27
Q

What are the pharyngeal constrictor muscles innervated by?

A

Pharyngeal Branch of Vagus N. and Pharyngeal Plexus

Middle and Inferior pharyngeal constrictor ms. also innervated by branches of Recurrent Laryngeal N.

28
Q

What are the muscles that elevate the pharynx?

A

Palatopharyngeus M.

Salpingopharyngeus M.

Stylopharyngeus M.

Stlyloglossus M.

29
Q

What innervates the Palatopharyngeus and Salpingopharyngeus Ms.?

A

Pharyngeal branch of Vagus N. and Pharyngeal Plexus

30
Q

What innervates the stylopharyngeus M.?

A

Glossopharyngeal N.

31
Q

What is the innervation of the Cricothyroid M.?

A

External Laryngeal N.

32
Q

What laryngeal ms. are innervated by the Recurrent Laryngeal N.?

A

Posterior Cricoarytenoid M.

Lateral Cricoarytenoid M.

Transverse Arytenoid M.

Oblique Arytenoid M.

Aryepiglottic M.

Thyroarytenoid M.

Vocalis M.

(All except Cricothyroid M.)

33
Q

Which zone of penetrating neck trauma is the most common, most dangerous, but the easiest to fix?

A

Zone 2

34
Q

What does Zone 1 of penetrating neck trauma encompass?

A

Clavicle to Cricoid Cartilage

35
Q

What does Zone 2 of penetrating neck trauma encompass?

A

Cricoid cartilage to angle of mandible

36
Q

What does Zone 3 of penetrating neck trauma encompass

A

Angle of mandible to base of skull

NS Exam 1 (18 decks)

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