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Anatomy EXAM 1 > 10-14 Anterior NECK > Flashcards

10-14 Anterior NECK Flashcards

1
Q

list the VERTEBRAL levels of each of these Neck Bones
1. Mandible

  1. Hyoid bone
  2. Thyroid Cartilage Notch
  3. Cricoid Cartilage
  4. Jugular Notch Manubrium
A
  1. Mandible = lower border of C2 Vertebrae
  2. Hyoid bone= C3
  3. Thyroid Cartilage= NOTCH is at C4
  4. Cricoid Cartilage= C6
  5. Jugular NOTCH Manubrium= T1
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2
Q

Boundaries of the ANTERIOR Triangle [3]

A
  • ANT border of Sternomastoid
  • lower border of mandible
  • neck midline
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3
Q

Boundaries of the Carotid Triangle [3]

  1. How are Carotid arteries actually related to this triangle?
A

ºANT border of Sternomastoid
ºOmohyoid
ºPOSTERIOR BELLY Digastric muscle

  1. This is where most the External Carotid Arteries come out from
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4
Q

Boundaries of SubMandibular Triangle [3]

A
  • POST BELLY Digastric
  • ANT BELLY Digastric
  • lower border of mandible
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5
Q

The Pretracheal fascia and Buccopharyngeal visceral fascia are BOTH laterally continuous with the ____ _____. What is the difference between these 2 fascia?

A

Pretracheal and Buccopharyngeal fascia are BOTH LATERALLY CONTINUOUS WITH CAROTID SHEATH.

Pretracheal=covers Trachea, Larynx and Esophagus
——————————————–
Buccopharyngeal visceral = fascia BEHIND the Pretracheal muscles that connects the 2 Pretracheal lobes

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6
Q
  1. Retropharyngeal space

2. What is it’s clinical relevance?

A
  1. Space between buccopharyngeal and prevertebral Fascia that extends from skull base to Thorax POST mediastinum
  2. Tracks DIRECTLY to the Thorax = route for possible infection
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7
Q

LIST NERVE innervations for these muscles:
1. Sternocleidomastoid

  1. Geniohyoid
  2. STYLOhyoid
  3. Mylohyoid
  4. Cricothyroid
  5. GenioGLossus
  6. HYOGLossus
A
  1. Strnocldmastoid= Spinal Accessory CN11 (C2)
  2. Geniohyoid= C1 spinal n. branch
  3. STYLOhyoid = Facial CN7
  4. Mylohyoid= [Trigeminal/CN5-B3] {3rd branch}
  5. Cricothyroid= VAGUS n. CN. X
  6. Genioglossus = HypoGLossal CN12
  7. HYOglossus= HypoGLossal CN12
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8
Q

What is the nerve innervation for:
A: ANT BELLY Digastric muscle

B: POST BELLY Digastric muscle

A

DiGastric muscle

A: ANT BELLY= [[ TriGeminal/CN5- B3 ]]
{Branch #3 of Cranial n. 5}

B: POST BELLY= Facial CN7

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9
Q
  • TOSS” b4 u STRAP*
    1. What are the Infrahyoid STRAP muscles? [4]
    2. What is the Nerve for the “..OSS” of Infrahyoid STRAP muscles?
    3. What is “T” innervated by?
A
  1. “TOSS” b4 u STRAP
    - Thyrohoid (continuation of the SternoThyroid)
  • Omohyoid
  • SternoThyroid
  • Sternohyoid
    - ——————————————————————
    2. [ansa cervicales (C1-C3)] –> “..OSS”
    - ——————————————————————–
  1. Thyrohyoid = innervated by [C1 spinal n. branch]!<— caught a ride w/Hypoglossal n.
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10
Q

What are the NAMES and ORDER of the 5 [Facial CN7 n.] branches?

A

“That Zombie Bit My Cat!”

  1. Temporal
  2. Zygomatic
  3. Buccal
  4. Mandibular
  5. Cervical
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11
Q

ALL Scalene and Prevertebral muscles are innervated by which nerves?

A

Cervical nerves (Ventral Rami)

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12
Q

What are the 4 Prevertebral muscles?

A

Rectus capitis anterioris / lateralis

&

Longus Capitis and Longus Colli

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13
Q

The Splenius capitis and other Back muscles are innervated by which nerves?

A

Cervical nerves (DORSAL Rami)

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14
Q

What is the Stylomastoid Foramen?

A

hole between mastoid and styloid process that [Facial CN7] transmits thru!

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15
Q

“genio…” = _____
Genioglossus muscle [innervated by ____]

OR

Geniohyoid muscle [innervated by ______]

A

“genio….” = chin

ex. GenioGLossus muscle [innervated by HypoGLossal CN12]
OR

Geniohyoid [innervated by C1 spinal n. branch ]

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16
Q
  1. What 2 muscles does the Facial CN7 innervate?

2. What 2 muscles does the [Trigeminal/CN5-B3] innervate?

A
  1. Facial CN7 = STYLOhyoid & POST BELLY Digastric
    - ————————————————————————————-
  2. [Trigeminal/CN5-B3]= Mylohyoid & ANT BELLY Digastric
17
Q

A: Nerve innervation for [Stylopharyngeus m.]

B: innervation for the 2 Larynx intrinsic muscles? What are these 2 Larynx intrinsic muscles?

C: What 3 muscles does the HypoGLossal CN12 innervate?

A

A: Glossopharyngeal CN9

B: Superior laryngeal&Recurrent laryngeal= Vagus n. CN.X

C: GenioGLossus/ HyoGLossus / StyloGLossus

18
Q

Structures in the inferior neck are perfused by _____artery while Structures in the SUPERIOR NECK are perfused by the ________ ________

A

inf.Neck structures perfused by subclavian artery while SUPERIOR NECK Structures perfused by EXTERNAL CAROTID ARTERY

19
Q

Where is the Sympathetic trunk & ganglia located?

A

In Front of the PreVertebral fascia but BEHIND CaROTID SHEATH

20
Q

A) Name the 8 branches of EXTERNAL CAROTID ARTERY in order, along with their own branches?

B) What part of the neck does this Big artery perfuse?

A

” EXT CAROTID ARTERY branches are SALFORMS “

1: Superior thyroid –>[infrahyoid/Superior laryngeal]
2: Ascending Pharyngeal

3: Lingual –> [ suprahyoid]
4: Facial –>[submental a.] & very squiggly en vivo

5: Occipital
6: POST au(R)icular

7: Maxillary [many branches]
8: superficial temporal –>[transverse facial]

B) SUPERIOR NECK

21
Q

The Maxillary Artery is a daughter branch of the ___ ___ artery and is ___[HUGE/small] in size. It is located in the _____ fossa.

A

Maxillary Artery is a daughter of the EXTERNAL CAROTID ARTERY and is HUGE in size. It’s located in the INFRATEMPORAL fossa.

22
Q

Which nerve travels with the External Jugular Vein?

A

Great AuRicular Nerve

23
Q

Which muscle under the chin PIERCES the Stylohyoid muscle?

A

[POSTERIOR BELLY Digastric] Pierces Stylohyoid muscle under chin!

24
Q

What is the FUNCTION of the [Mylohyoid] and what NERVE innervates it?

A

under chin carriage muscle that both keeps tongue from falling out and depresses mandible

n. = [Trigeminal/CN5-B3]

25
Q

1) The upper part of the Vagus n. creates a ______ n. daughter, which itself then gives way to an _____ and _________ .
2) How is the[recurrent laryngeal n.] related to the Vagus n.?

A

1) Upper part of Vagus n. creates [Superior Laryngeal n.] daughter, which itself gives way to an EXTernal laryngeal branch and an INternal laryngeal branch
2) Vagus n. has 2nd daughter [recurrent laryngeal n.] that on L=wraps behind aorta & R=goes underneath subclavian a. —>Both innervate Voice Box

26
Q

1-Describe the difference between EXTernal laryngeal branch and INternal laryngeal branch of the [Superior Laryngeal n.]

2-Wht parent n. does [Superior Laryngeal n.] come from?

A

A-EXT branch= smaller and innervates Cricothyroid muscle

B-INternal branch= PIERCES Thyrohyoid membrane and innervates Larynx muscle

2) Both branches <——VAGUS n.

Anatomy EXAM 1 (14 decks)

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