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Anatomy > The Neck and Anterior Triangle > Flashcards

The Neck and Anterior Triangle Flashcards

1
Q

What vertebral level is the hyoid bone?

A

C3 Vertebra

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2
Q

What vertebral level are the laryngeal cartilages located?

A

C4-C6 Vertebrae

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3
Q

What is the order of the cartilaginous structures inferior to the hyoid bone?

A

Thyroid Cartilage > Cricoid Cartilage > Trachea

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4
Q

What fascia in the neck is attached to vertebral spines?

A

Investing Fascia

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5
Q

What muscles are enclosed by the splitting of investing fascia?

A

Trapezius and Sternocleidomastoid (SCM)

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6
Q

What fascia envelops the vertebral column and deep neck muscles?

A

Prevertebral Fascia

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7
Q

Where is the buccopharyngeal fascia located?

A

Posterior portion of visceral fascia

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8
Q

What structures lie within the carotid sheath?

A

Internal Jugular vein, Common Carotid Artery/ Internal Carotid Artery, and Vagus Nerve

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9
Q

What space lies between the layers of buccopharyngeal and prevertebral fascia that can get infected?

A

Retropharyngeal Space

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10
Q

What structure divides the anterior and posterior triangles of the neck?

A

Sternocleidomastoid Muscle

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11
Q

What are the borders of the anterior triangle?

A

Midline of the neck, the lower border of the mandible, and the medial border of the SCM

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12
Q

The _________ belly of the _________ Muscle divides the anterior triangle into smaller triangles: the _________ triangle and the _________ triangle.

A

Superior, Omohyoid, Carotid, Muscular

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13
Q

What spinal cord segments do the cervical plexus originate?

A

C1-C4, ventral primary rami

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14
Q

The common area of nerves from C2 and C3 with C3 and C4 is called what?

A

The punctum nervosum/ nerve point of the neck/ Erb’s Point

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15
Q

What nerve innervates the platysma muscle?

A

Cranial Nerve 7: Facial Nerve

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16
Q

What two veins converge to give rise to the external jugular vein?

A

The posterior auricular vein and the retromandibular vein

17
Q

What are the strap muscles?

A

sternohyoid, omohyoid, sternothyroid, and thyrohyoid muscles

18
Q

Where does the omohyoid muscle attach?

A

Suprascapular Notch, the medial border

19
Q

The sternohyoid, omohyoid, and the sternothyroid are innervated by what nerve?

A

Ansa Cervicalis of of the cervical plexus

20
Q

What nerve innervates the thyrohyoid?

A

Nerve to the Thyrohyoid

21
Q

The thyroid gland is located at what level of the trachea?

A

Level to the 2nd, 3rd, and 4th tracheal rings

22
Q

What does the thyroid secrete?

A

Thyroxin: responsible for regulating cellular metabolism

23
Q

What structure is located at the posterior surface of the superior and inferior poles of the lateral lobes of the thyroid?

A

Parathyroid Glands

24
Q

What does the parathyroid gland secrete?

A

Parathyroid Hormone; critical for calcium homeostasis

25
Q

What root of the ansa cervicalis forms from C1?

A

Superior Root

26
Q

What root of the ansa cervicalis forms from C2 and C3?

A

Inferior Root

27
Q

What cranial nerve does the superior root of the ansa cervicalis run with?

A

Cranial Nerve 12 (Hypoglossal)

28
Q

What spinal fibers contribute to the Phrenic Nerve?

A

C3, C4, and C5. Majority from C4

29
Q

What are the borders of the carotid triangle?

A

SCM, superior belly of omohyoid and posterior belly of digastric muscle

30
Q

Where does the right common carotid branch from?

A

Brachiocephalic Trunk

31
Q

What level does the common carotid branch into the internal and external carotid arteries?

A

Upper border of the thyroid cartilage at C4 vertebra

32
Q

What is the arterial supply to the thyroid?

A

Superior and Inferior Thyroid Arteries

33
Q

What structure parallels the superior thyroid vein?

A

Superior thyroid artery

34
Q

What vessel does the superior thyroid vein empty?

A

Internal Jugular Vein

35
Q

What vessel does the middle thyroid vein empty?

A

Internal Jugular Vein

36
Q

What vessel does the inferior thyroid vein empty?

A

Left Brachiocephalic Vein

Anatomy (9 decks)

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