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Anatomy Second Semester > Anterior Triangle Of The Neck > Flashcards

Anterior Triangle Of The Neck Flashcards

1
Q

What triangles are found within the neck

A

Anterior and posterior triangles

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2
Q

What defines the triangles

A

The sternocledomastoid (SCM)

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3
Q

What are the four division of the anterior triangle

A

the sub-mental, sub-mandibular, carotid and muscular

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4
Q

What is within the sub-mental division

A

Sub-mental lymph nodes and the beginning of the jugular vein

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5
Q

What is within the submandibular division

A

Submandibular salivary glands, lymph nodes, facial artery and vein, carotid sheath and hypoglossal nerve

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6
Q

What is within the carotid division

A

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

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7
Q

What forms the floor of the muscular

A

The sternohyoid and sternothyroid

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8
Q

What it within the muscular

A

Thyroid gland, larynx, trachea and oesophagus

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9
Q

Where is the platysma muscle found

A

In the anterior triangle

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10
Q

Attachment of the platysma

A

Fascia above pectoralis major and the clavicle of the lateral neck

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11
Q

Insertion of platysma

A

Mandible

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12
Q

Innervation of platysma

A

Facial nerve (CN VII)

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13
Q

Where is the internal jugular vein found

A

Posterior to the SCM

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14
Q

What is the cervical plexus composed of

A

Anterior rami of C1-C4

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15
Q

Where do the loops of the cervical plexus lie

A

anterior to levator scapulae and scalene medius

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16
Q

What covers the cervical plexus

A

A layer of pre-vertebral deep cervical fascia

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17
Q

What does the cervical plexus provide

A

Somatic motor and sensory innervation and sympathetic innervation

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18
Q

What is between the hyoid bone and the skull/mandible

A

The suprahyoid area

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19
Q

What is between the hyoid bone and the sternum/thyroid cartilage

A

The infrahyoid area

20
Q

What are the suprahyoid muscles

A

The stylohyoid, anterior and posterio bellies of digastric, geniohyoid and mylohyoid

21
Q

What is the function of the mylohyoid and digastric

A

Raise the hyoid bone/depress the mandible

22
Q

What are the posterior belly of digastric and stylohyoid innervated by

A

The facial nerve

23
Q

What is the anterior belly of digastric and the mylohyoid innervated by

A

The mandibular division of the trigeminal nerve

24
Q

What is the geniohyoid innervated by

A

C1 via the hypoglossal

25
Q

What are the infrahyoid muscles

A

omohyoid, sternohyoid, thryohyoid and sternothyroid

26
Q

What is the function of the infrahyoid muscles

A

Depress the hyoid bone/thyroid cartilage

27
Q

What innervated the infrahyoid muscles

A

Ansa cervicalis

28
Q

Which infrahyoid muscle is not innervated by the ansa cervicalis and what does innervate it

A

Thryohyoid and C1 via the hypoglossal

29
Q

Where do the left and right carotid arteries come from

A

Left - arch of aorta

Right - brachiocephallic

30
Q

What does the common carotid bifurcate to give

A

The internal and external carotids

31
Q

What does the internal carotid supply

A

The brain

32
Q

What does the external carotid supply

A

The head, face and neck

33
Q

What is within the carotid sheath

A

The common carotid, external jugular vein and vagus nerve

34
Q

What three branches of the external carotid are within the anterior triangle

A

The superior thyroid, lingual and facial

35
Q

What are other arteries within the anterior triangle

A

The inferior thyroid, vertebral, thyrocervical trunk, transverse cervical, supra scapular, internal thoracic and branches from the subclavian

36
Q

What branches does the vagus nerve give off

A

Recurrent laryngeal branches, internal and external laryngeal branches

37
Q

What is the thyroid gland

A

An endocrine structure that regulates metabolism

38
Q

What is the thyroid composed of

A

2 lobe, an isthum and a capsule

39
Q

Where does the thyroid run from/to

A

The lamina of the thyroid cartilage to the 6th tracheal ring

40
Q

Where are the parathyroid glands

A

Embedded on the surface of the thyroid gland

41
Q

What supplies the thyroid

A

Superior and inferior thyroid artery

42
Q

What drains the thyroid

A

Superior, middle and inferior thyroid veins

43
Q

Where do the left and right inferior thyroid veins drain into

A

The brachiocephalic vein

44
Q

What innervates the submandibular salivary gland

A

The facial nerve

45
Q

Where do the ducts from the submandibular salivary gland open into

A

Between the first and second incisor

Anatomy Second Semester (27 decks)

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