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Anatomy (Neck and Head) > Neck I (11.15.2017) > Flashcards

Neck I (11.15.2017) Flashcards

(60 cards)

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1
Q

What verterbral level is the hyoid bone?

A

C3

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2
Q

What innervates Platysma?

A

Facial nerve (CN VII)

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3
Q

What is the name of the fascia Platysma is inside of?

A

Platysma is inside superficial cervical fascia

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4
Q

What does the Carotid Sheath invest?

A
  1. Common/internal carotid arteries
  2. Internal Jugular Vein
  3. Vagus Nerve
  4. Deep cervical lymph nodes
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5
Q

If someone were to have an infection in their retropharyngeal space what symptoms might they have?

A
  • Difficulty swallowing

- Difficulty speaking

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6
Q

What are the borders of the anterior triangle of the neck?

A
  1. Sternocleidomastoid
  2. Mandible
  3. Midline of the neck
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7
Q

Name the 4 infrahyoid muscles?

A
  1. Sternohyoid
  2. Omohyoid
  3. Sternothyroid
  4. Thyrohyoid
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8
Q

What is the action rule of the infrahyoid muscles?

A

Depress hyoid

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9
Q

Innervation rule of the infrahyoid muscles?

A

Ansa cervicalis

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10
Q

Which two infrahoid muscles only depress the hyoid bone?

A

Sterno hyoid

Omohyoid

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11
Q

What is the action of the sternothyroid?

A
  1. Depress hyoid

2. Depress larynx

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12
Q

What are the two actions of Thyrohyoid?

A
  1. Depress hyoid

2. Raise Larynx

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13
Q

What innervates the thyrohyoid?

A

C1 via hypoglossal nerve

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14
Q

Name the 4 supra hyoid muscles?

A
  1. Mylohyoid
  2. Digastric
  3. Stylohyoid
  4. Geniohyoid
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15
Q

What is the action rule of the suprahyoid muscles?

A

Elevate the hyoid

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16
Q

What innervates the mylohoid?

A

mandibular nerve (CN V3)

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17
Q

What are the two actions of digastric?

A
  1. Elevate hyoid

2. Depress mandible

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18
Q

What innervates digastic?

A

Anterior belly: mandibular nerve (CN V3)

Posterior belly: facial nerve (CN VII)

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19
Q

What innervates stylohyoid?

A

Facial nerve (CN VII)

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20
Q

What innervates Geniohyoid?

A

C1 via hypoglossal nerve

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21
Q

What are the borders of the carotid triangle?

A
  1. Sternocleidomastoid
  2. Omohyoid
  3. Posterior belly of digastric
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22
Q

What vessel bifurcates inside the carotid triangle?

A

Common carotid

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23
Q

What are the borders of the posterior triangle of the neck?

A
  1. Trapezius
  2. Clavicle
  3. Sternocleidomastoid
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24
Q

What are the actions of sternocleidomastoid?

A

Unilateral:

  • ipsilateral lateral flexion of the neck
  • contralateral rotation of head

Bilateral:
-flex neck

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25
What innervates the sternocleidomastoid muscle?
Accessory nerve (CN XI)
26
Name the muscles (6) inside the posterior triangle of the neck?
1. Inferior belly of omohyoid 2. Anterior scalene 3. Middle scalene 4. Posterior scalene 5. Levator scapulae 6. Splenius capitis
27
What are the actions of the 3 scalene muscles?
- Laterally flex neck | - Elevate ribs
28
What innervates the scalene muscles?
Cervical plexus (C1-C4)
29
Where do the cutaneous branches of the cervical plexus emerge?
posterior edge of sternocleidomastoid muscle *point for injection of anesthetic when performing neck proceedures
30
Ansa cervicalis is a loop formed by which vertebral ventral rami?
C1 - C3
31
Where is ansa cervicalis located in relation to the carotid sheath?
superficial
32
What does the Ansa Cervicalis innervate?
most infrahyoid muscles
33
Which cranial nerve does ansa cervicalis "hitchhike" with?
CN XII (Facial)
34
Where is the phrenic nerve (C3-C5) located in relation to anterior scalene?
Phrenic nerve is superficial to anterior scalene muscles
35
Where do the roots of the brachial plexus emerge?
between anterior and middle scalene
36
Which triangle of the neck are the trunks of the posterior triangle located?
Posterior triangle
37
Name the three branches off the aortic arch?
1. Brachiocephalic trunk - Right subclavian - Right common carotid 2. Left common carotid 3. Left subclavian
38
Where is the carotid pulse palpated?
common carotid
39
What does the carotid body sense?
Carotid body has chemoreceptors (sense blood composition)
40
What does the carotid sinus sense?
Carotid sinus contains baroreceptors (blood pressure)
41
Stimulation of the carotid sinus can activate which nerve?
Glossopharyngeal (CN IX)
42
What does the internal carotid artery supply?
intracranial structures (e.g. brain and orbit)
43
What does the external carotid artery supply?
- neck - scalp - part of orbit
44
Name the (5) major external carotid artery branches?
``` S-uperior thyroid artery A-scending Pharyngeal artery L-ingual artery F-acial artery O-ccipital artery ``` "Sal, Fuck off"
45
Name the (3) branches of the subclavian artery in the neck?
1. Internal thoracic artery 2. Vertebral artery 3. Thyrocervical trunk
46
The vertebral artery travels through what structure of the vertebrae?
Transverse foramina
47
Name the (3) branches in the neck of the thyrocervical trunk
1. Inferior thyroid artery 2. Transverse cervical artery 3. Suprascapular artery
48
Where is the external jugular vein in relation to the sternocleidomastoid?
superficial
49
Where does the External jugular vein receive blood from?
- Scalp - Face - Neck - Shoulder
50
Where do the external jugular veins empty?
subclavian veins
51
Where are the internal jugular veins in relation to the carotid sheath?
inferiorly within the carotid sheath
52
What do the internal jugular veins drain?
structures within the cranial cavity
53
Where do the interna. jugular veins join the subclavian vein?
venous angle
54
Where do the subclavian veins course in relation to the clavicle and scalene muscles?
- Between clavicle and 1st rib | - Anterior to scalene muscles
55
What do the subclavian veins drain?
upper extremity, head and neck
56
Where is a central line placed?
subclavian vein inferior to clavicle
57
Where does lymph of the superficial tissue of the neck drain?
superificial cervical lymph nodes (along external jugular vein)
58
Where does lymph from the face and scalp drain?
superficial ring lymph nodes
59
Where does all lymph of the head and neck eventually drain?
deep cervical lymph nodes (along internal jugular vein)
60
Where are the two places lymphatic vessels of the neck empty?
1. Thoracic duct | 2. Right lymphatic duct

Anatomy (Neck and Head) (8 decks)

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