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Anatomy 2 > Anterior Triangle of the Neck > Flashcards

Anterior Triangle of the Neck Flashcards

1
Q

What divides the anterior from the posterior triangle?

A

Sternocleidomastoid

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2
Q

What are the boundaries of the anterior triangle?

A

Anterior border: Imaginary midline of the neck
Posterior Border: Anterior border of SCM
Base: Mandible

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3
Q

What are the divisions of the anterior triangle?

A

Sub-mental, Sub-mandibular, Carotid and Muscular

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4
Q

What is apart of the Sub-mental division?

A

Submental lymph nodes, beginning of anterior jugular vein

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5
Q

What is apart of the Sub-mandibular division?

A

Submandibular salivary gland, lymph nodes, fascial artery and vein, carotid sheath and hypoglossal nerve

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6
Q

What is apart of the Carotid division?

A

Carotid sheath, branches of external carotid artery, internal jugular vein, hypoglossal, accessory and vagus nerves

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7
Q

What is apart of the Muscular division?

A

Sternohyoid and sternothyroid form the floor beneath which likes the thyroid gland, larynx, trachea and oesophagus

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8
Q

Proximal attachment of Platysma?

A

Fascia above pectorals major and clavicle

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9
Q

Distal attachment of Platysma?

A

Lateral neck and onto mandible

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10
Q

What innervates the Platysma?

A

Facial nerve CN VII

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11
Q

What are the veins in the anterior neck?

A

External anterior and Internal posterior jugular veins

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12
Q

What may be absent in the anterior neck?

A

Anterior jugular midline

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13
Q

What is the origin of the cervical plexus?

A

Anterior rami C1-4

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14
Q

What is the cervical plexus joined into?

A

Loops that lie anterior to elevator scapulae and scalenus medius

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15
Q

What is the cervical plexus covered by?

A

Pre-vertebral layer of deep cervical fascia

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16
Q

What sensory does the cervical plexus have?

A

Somatic motor and sensory

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17
Q

What is between the hyoid bone and the skull or mandible?

A

Suprahyoid

18
Q

What is between the hyoid bone and the sternum or thyroid cartilage?

A

Infrahyoid

19
Q

What is the function of supra hyoid muscles?

A

Raise hyoid bone or depress mandible

20
Q

What innervates the supra hyoid muscles?

A

Facial nerve and mandible division of trigeminal CN VIII

21
Q

What is the function of infra hyoid muscles?

A

Depress hyoid bone and thyroid cartilage

22
Q

What innervates the infra hyoid muscles?

A

Ansa cervicali except thyrohyoid (C1 via hypoglossal CN XII

23
Q

Where does LCA arise from?

A

Arch of aorta

24
Q

Where does the RCA arise from?

A

Brachiocephalic

25
Q

What are the two branches of common carotid?

A

Internal and external

26
Q

Where does the internal carotid go?

A

To the brain

27
Q

Where does the external carotid go?

A

To head, face and neck

28
Q

Where is the common carotid artery within?

A

The carotid sheath with internal jugular vein and vagus nerve

29
Q

What are the three external carotid artery?

A

Superior thyroid, lingual and facial arteries

30
Q

What is the abbreviation of the Vagus nerve?

A

CN X

31
Q

Where does the vagus nerve descend?

A

Carotid sheath

32
Q

Where do the recurrent laryngeal branches to muscles of larynx go around?

A 
Left = around arch of aorta
Right = around subclavian artery
33
Q

What do endocrine glands do?

A

Regulates metabolic rate

34
Q

What are the two lobes of the thyroid gland?

A

Isthmus and capsule

35
Q

What is the position of the thyroid gland?

A

From lamina of thyroid cartilage down to 6th tracheal ring

36
Q

What is embedded into posterior surface of thyroid gland?

A

Parathyroid glands

37
Q

What is the superior thyroid?

A

The first anterior branch of the external carotid artery

38
Q

What is the inferior thyroid?

A

A branch of the thyrocervical trunk of the subclavian artery

39
Q

Where do the left and right inferior thyroid veins drain?

A

Into the left brachiocephalic vein

40
Q

On duct of the submandibular salivary gland opens between?

A

The first and second lower incisor

41
Q

What innervates the submandibular salivary gland?

A

CN VII (facial nerve)

42
Q

What does the thoracic duct join?

A

The venous system in the neck

Anatomy 2 (26 decks)

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