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HF&F Exam 3 > Q: 7 Neck - Hutcheson > Flashcards

Q: 7 Neck - Hutcheson Flashcards

1
Q

What is the most superficial layer of the deep fascia?

A

Investing facia

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2
Q

What are the nerve levels of the cervical plexus?

A

C1-C4

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3
Q

What are the nerves of the cervical plexus proper?

Are they sensory or motor?

A

Lesser occipital n (C2)

Great auricular n (C2-C3)

Transverse cervical n (C2-C3)

Supravlavicular n (C3-C4)

SENSORY

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4
Q

What are the nerves of the Ansa cervicalis?

Is it considered motor or sensory?

A

Superior Root (C1)

Inferior root (C2-C3)

Superior and inferior root connect

To the geniohyoid and thyrohyodi mm. (C1)

To the superior belly of the omohyoid m. (C1)

To the sternothyroid m. (C1-C3)

To the sternohyoid m. (C1-C3)

To the inferior belly of the omohyoid m. (C2-C3)

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5
Q

What does the carotid sheath contain?

A

IJV (internal jugular vein)

Carotid a.

Vagus n.

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6
Q

What is the bulge called where the common carotid Artery bifurcates?

A

Carotid sinus (blood pressure regulation/baroreceptors)

Also contains carotid body which detects blood gas levels etc (chemoreceptors)
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7
Q

How many cervical spinal nerves are there?

A

8

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8
Q

How many cervical spinal vertebrae are there?

A

7

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9
Q

What is the hyoid bone an attachment site for?

What are the three parts of the hyoid bone?

What are the functions of the muscles that attach to the hyoid bone?

A

Many anterior strap muscles

Lesser horns, greater horns, body

Depress mandible, elevate ribs, elevate or depress larynx

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10
Q

What are the two components of the superficial cervical fascia?

A

Platysma muscle (embedded in fat).

Fat

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11
Q

What innervates the anterior belly of the digastric muscles?

A

CN V3

Third branch of trigeminal nerve

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12
Q

What innervates posterior belly of the digastric muscle?

A

CN VII

Facial nerve 7

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13
Q

What innervates the mylohyoid muscle?

A

CN V3

Third branch of trigeminal nerve

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14
Q

What innervates the stylohyoid muscle?

A

CN VII

Facial nerve 7

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15
Q

What are the functions of the infrahyoid muscles?

A

Depress hyoid bone and larynx

Depress mandible if suprahyoid muscles contract at same time

Act in vocalization and swallowing

Thyrohyoid can raise larynx

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16
Q

What are the four muscles of the infrahyoid group?

A

Omohyoid m

Sternohyoid m

Thyrohyoid m

Sternothyroid m

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17
Q

Name the superficial fascia layers

Name the deep fascia layers

A

Superficial:
-Superficial cervical fascia

Deep:
-Investing Fascia
-Pretracheal fascia
-prevertebral fascia (PVF)
—
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18
Q

What are the muscles covered by the investing fascia?

A

Trapezius and SCM

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19
Q

What is another name for the investing fascia?

A

Superficial layer of deep fascia

20
Q

What is superficial to the superficial layer of the deep fascia?

A

Superficial cervical fascia

21
Q

What innervates the SCM?

A

CN XI

Spinal accessory nerve 11

22
Q

What innervates trapezius?

A

CN XI

Spinal accessory nerve 11

23
Q

What are the components/sub layers that makeup the pretracheal fascia?

A

Muscular (envelope infrahyoid muscles)

Visceral (covers thyroid gland)

Buccopharyngeal (compartmentalizes the trachea and esophogus with the thyroid gland [visceral fascia]) —sits right posterior to the esophogus

24
Q

What does the muscular fascia layer surround/envelope?

A

Infrahyoid muscles

25
Q

What does the prevertebral fascia envelope?

A

Deep cervical muscles

Levator scapulae muscle

Anterior scalene

Middle scalene

Posterior scalene

Longus coli muscle

Sympathetic trunk (found within the “split” area (alar space)

26
Q

What is the area created by the split in the prevertebral fascia?

What is found in the alar space?

A

Alar space

Sympathetic trunk

27
Q

What can be dangerous about the retropharyngeal and alar spaces?

A

Oral infections can migrate to the mediastinum and heart etc if they puncture through the fascia into these spaces (causing heart disease etc…)

28
Q

What is the space that lies anterior to the alar fascia and posterior to the buccopharyngeal fascia? (In between buccopharyngeal and alar fascia)

A

Retropharyngeal space

29
Q

What is found within the carotid sheath?

A

Internal Jugular Vein (IJV)

Carotid artery

Vagus nerve

30
Q

Is C5 part of the cervical plexus?

A

No, C1-C4 is though

31
Q

Are the nerves of the cervical plexus ventral or dorsal rami?

A

Ventral rami

They do have dorsal and ventral roots, but the dorsal head to the deep back muscles

32
Q

What spinal nerve levels does the lesser occipital nerve originate from?

Is it sensory or motor?

A

C2

Sensory

33
Q

What spinal nerve levels does the great auricular nerve originate from?

Is it sensory or motor?

A

C2-C3

Sensory

34
Q

What spinal nerve levels does the transverse cervical nerve originate from?

Is it sensory or motor?

A

C2-C3

Sensory

35
Q

What area of the body does the ansa cervicalis innervate?

Is it sensory or motor?

A

Anterior strap muscles (anterior and just lateral from midline of throat)

Motor

36
Q

What spinal nerve levels does the supraclavicular nerve originate from?

Is it sensory or motor?

A

C3-C4

Sensory

37
Q

What spinal nerve levels does the nerve to the inferior belly of the omohyoid muscle originate from?

Is it sensory or motor?

A

Inferior root of ansa cervicalis (C2-C3)

Motor

38
Q

What spinal nerve levels does the nerve to the sternohyoid muscle originate from?

Is it sensory or motor?

A

the superior and inferior root of ansa cervicalis (C1-C3)

Motor

39
Q

What spinal nerve levels does the nerve to the geniohyoid muscle originate from?

Is it sensory or motor?

A

Superior root of the ansa cervicalis (C1)

Motor

40
Q

What spinal nerve levels does the nerve to the thyrohyoid muscle originate from?

Is it sensory or motor?

A

Superior root of the ansa cervicalis (C1)

Motor

41
Q

What spinal nerve levels does the nerve to the superior belly of the omohyoid muscle originate from?

Is it sensory or motor?

A

Superior root of the ansa cervicalis (C1)

Motor

42
Q

What spinal nerve levels does the nerve to the sternothyroid muscle originate from?

Is it sensory or motor?

A

superior and inferior root of the ansa cervicalis (C1-C3)

Motor

43
Q

What does the right common carotid artery branch off of?

A

Brachiocephalic trunk

44
Q

What does the left common carotid artery branch off of?

A

.

45
Q

What is found at the point of bifurcation of the common carotid artery?

What artery does this thing belong to?

A

A bulge known as the carotid sinus. The bulge also contains the carotid body

The internal carotid artery

46
Q

Where is the carotid sinus found?

What does it do?

What specific feature allows it to do what it does? Where else in the body are these found? (Innervation?)

What nerve innervates it?

A

In the bulge on the internal carotid artery at the bifurcation of the common carotid

Regulates blood pressure

Baroreceptors. Aortic arch (CN X)

CN IX

47
Q

Where is the carotid body found?

What does it do?

What specific feature allows it to do what it does? Where else in the body are these found? (Innervation?)

What nerve innervates it?

A

In the bulge on the internal carotid artery found at the bifurcation of the common carotid a.

Regulates blood O2, CO2, pH, and temp

Chemoreceptors. Aortic arch (CN X)

CN IX

HF&F Exam 3 (6 decks)

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