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DHBS 301 > Cervical Triangle > Flashcards

Cervical Triangle Flashcards

1
Q

Platysma muscle

A

Most superficial muscle in the neck

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2
Q

Platysma muscle action

A
  • Facial expression
  • Move corners of the mouth down
  • Tense neck and upper chest
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3
Q

Platysma muscle innervation?

A

Facial nerve, CN VII

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4
Q

Posterior cervical triangle borders

A

Bound by the clavicle, trapezius, and sternocleidomastoid muscle

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5
Q

Trapezius innervation

A

Accessory nerve, CN XI

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6
Q

Sternocleidomastoid innervation

A

Accessory nerve, CN XI

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7
Q

What muscles are in the posterior triangle?

A
  • Trapezius
  • Sternocleidomastoid
  • Omohyoid
  • Scalene muscles
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8
Q

Where is the cutaneous branch of the cervical plexus located?

A

Posterior cervical triangle

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9
Q

External jugular veins is located…

A

In the posterior cervical triangle

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10
Q

Anterior cervical triangle borders

A

Sternocleidomastoid, body of mandible, and midline

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11
Q

Sternocleidomastoid muscle is the dividing point between…

A

The anterior and posterior cervical triangles

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12
Q

Sternocleidomastoid muscle origin

A

Sternum and clavicle

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13
Q

Sternocleidomastoid muscle insertion

A

Temporal bone and mastoid process

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14
Q

Sternocleidomastoid muscle action

A
  • Unilaterally: Rotates head to opposite side
  • Bilaterally: Cervical flexion
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15
Q

Congenital torticollis

A
  • Twisted neck
  • Unilateral shortening and/or fibrosis of SCM
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16
Q

Where are the suprahyoid and infrahyoid muscles located?

A

Anterior cervical triangle

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17
Q

Suprahyoid and infrahyoid muscles actions?

A

Elevate, depress, protract, and retract the hyoid bone contribute to swallowing and speaking

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18
Q

Suprahyoid muscles

A

Above hyoid

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19
Q

Infrahyoid muscles

A

Below hyoid

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20
Q

Why is the hyoid special?

A

Only bone without any articulations to other bones

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21
Q

Where is the hyoid located?

A

Anterior on the midline of the neck between the mandible and thyroid cartilage

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22
Q

What does the hyoid attach too?

A

Only has muscular and ligamentous attachments

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23
Q

Thyroid cartilage

A

With laryngeal prominence, Adam’s apple

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24
Q

Infrahyoid muscles are primarily innervated by the…

A

Ansa cervicalis

25
Q

What infrahyoid muscle is not innervated by the ansa cervicalis?

A

Thyrohyoid muscle

26
Q

Omohyoid muscle

A

Scapula to the hyoid

27
Q

Superior belly of the omohyoid muscle is located…

A

In anterior cervical triangle

28
Q

Inferior belly of the omohyoid muscle is located…

A

In posterior cervical triangle

29
Q

The superior limb of the nasa cervicalis runs along side…

A

Hypoglossal nerve

30
Q

Thyrohyoid muscle innervation

A

Fibers of C1

31
Q

Mylohyoid muscle innervation

A

Trigeminal nerve, CN V

32
Q

Digastric muscle anterior belly innervation

A

Trigeminal nerve, CN V

33
Q

Digastric muscle posterior belly innervation

A

Facial nerve, CN VII

34
Q

Stylohyoid muscle origin

A

Styloid process

35
Q

Stylohyoid insertion

A

Hyoid

36
Q

Stylohyoid innervation

A

Facial nerve, CN VII

37
Q

Thyroid gland

A

Endocrine glands, hormone secreting

38
Q

What unites the left and right lobes of the thyroid gland

A

Relatively thin isthmus

39
Q

Thyroid gland function

A

Regulate metabolism, growth, and development

40
Q

Parathyroid glands

A

4 pea shaped glands reside on the posterior aspect of the thyroid gland

41
Q

Parathyroid glands function

A

Play important roles in regulating blood calcium levels

42
Q

Cricothyroid membrane

A

Landmark for cricothyrotomy, establish patient airway in life seeking situation

43
Q

Tracheostomy

A

Non-emergent surgical procedure for establishing a patient airway

44
Q

Mylohyoid muscle

A

Forms the muscular floor of the oral cavity

45
Q

Mylohyoid muscle insertion

A

Fibers from the left and right muscle insert together on a midline raphe that attaches to the hyoid bone

46
Q

Raphe

A

Fibers interdigitating with each other

47
Q

Submandibular gland

A

C shaped salivary gland that wraps around the posterior border of the mylohyoid muscle

48
Q

What two areas of the submandibular gland rest?

A

Part of the gland resides within the neck, the remaining portion in the oral cavity

49
Q

Facial artery branches from the…

A

Carotid artery

50
Q

What is enclosed in the carotid sheath?

A
  • Common carotid artery
  • Vagus nerve
  • Internal jugular vein
51
Q

The carotid sheath is made of…

A

Connective tissue

52
Q

Ansa cervicalis

A

Nerve loop that arises from the cervical plexus

53
Q

What courses along the carotid sheath?

A

Ansa cervicalis

54
Q

Branches in the external carotid artery include…

A
  • Facial artery
  • Lingual artery
  • Superior thyroid artery
55
Q

Where does ht internal carotid artery go?

A

Goes straight towards cranial cavity to the brain, does not branch in neck

56
Q

Carotid body

A

Chemoreceptor

57
Q

Carotid sinus

A

Baroreceptor

58
Q

Carotid body and sinus are located…

A

Near bifurcation of the common carotid a.

DHBS 301 (21 decks)

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