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Anatomy > Triangles of Neck (TMA) > Flashcards

Triangles of Neck (TMA) Flashcards

1
Q

What are the borders of anterior triangle of the neck?

A
  • inferior mandible
  • anterior sternocleidomastoid
  • Sagittal line down midline of neck
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2
Q

What covers the roof of the anterior triangle of the neck?

A

Investing fascia

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3
Q

What covers the floor of the of the anterior triangle of the neck?

A

Visceral fascia

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4
Q

Name the 4 suprahyoid muscles

A

Stylohyoid
Mylohyoid
Geniohyoid
Digastric

[S]uck [M]y [G]rand [D]ick

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5
Q

Name the 4 infrahyoid muscles

A

Thyrohyoid
Omohyoid
Sternohyoid
Sternothyroid

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6
Q

What does the common carotid artery bifurcate to (in the anterior triangle of the neck)

A

External and internal carotid branches

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7
Q

Where can the internal jugular vein be found?

A

In the anterior triangle of the neck

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8
Q

Which cranial nerves pass through the anterior triangle of the neck

A 
Facial [VII] 7
Glossopharyngeal [IX] 9
Vagus [X] 10
Accessory [XI] 11
Hypoglossal [XII] 12
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9
Q

Name the 4 subdivisions of the anterior triangle

A

Carotid triangle
Submental triangle
Submandibular triangle
Muscular triangle

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10
Q

Borders of the carotid triangle

A

Superior - posterior Belly of digastric
Lateral - medial sternocleidomastoid
Inferior - superior Belly of omohyoid

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11
Q

Main structures of carotid triangle

A
  • Common carotid artery bifurcate to ext. and int. carotid artery
  • Internal jugular vein
  • Hypoglossal (CN:12) and vagus nerve (CN:10)
  • BONUS*
  • dilated portion of common carotid/internal carotid = BARORECEPTORS = detect stretch as measure of blood pressure
  • CN:12 feeds this info to brain
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12
Q

Superior border of carotid triangle

A

Posterior Belly of digastric

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13
Q

Lateral border of carotid triangle

A

Medial sternocleidomastoid

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14
Q

Inferior border of carotid triangle

A

Superior belly of omohyoid muscle

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15
Q

Borders of the submental triangle

A

Inferior - hyoid
Medial - midline of neck
Lateral - anterior belly of digastric

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16
Q

Inferior border of submental triangle

A

Hyoid

17
Q

Medial border of submental triangle

A

Midline of neck

18
Q

Lateral border of submental triangle

A

Anterior belly of digastric muscle

19
Q

What forms the base of the submental triangle

A

Mylohgyoid muscle

From mandible to hyoid

20
Q

What are the main structure in the submental triangle

A

Submental lymph nodes.

To drain lymph from floor of the mouth and tongue

21
Q

Borders of the submandibular triangle

A

Superior - body of mandible
Anterior - anterior belly of digastric
Posterior - posterior belly of digastric

22
Q

Superior border of submandibular triangle

A

Body of mandible

23
Q

Anterior border of submandibular triangle

A

Anterior belly of digastric

24
Q

Posterior border of submandibular triangle

A

Posterior belly of digastric muscle

25
Q

What main structures does the submandibular triangle contain

A
  • submandibular gland (salivary)
  • Lymph nodes
  • Facial artery
26
Q

What are the borders of the muscular triangle

A

Superior - hyoid
Medial - midline of neck
Supero-laterally - superior belly of omohyoid
Infero-laterally - inferior part of sternocleidomastoid

27
Q

Superior border of muscular triangle

A

Hyoid

28
Q

Medial border of muscular triangle

A

Midline of neck

29
Q

Supero-lateral border of muscular triangle

A

Superior belly of omohyoid muscle

30
Q

Infero-lateral border of the muscular triangle

A

Inferior part of sternocleidomastoid

31
Q

What are the main structures in the muscular triangle

A
  • infrahyoid muscles
  • pharynx
  • thyroid
  • parathyroid

Anatomy (7 decks)

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