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Head and Neck Anatomy > Neck (Compartments and Triangles) > Flashcards

Neck (Compartments and Triangles) Flashcards

1
Q

Compartments of the neck

A
  • Vertebral
  • Vascular
  • Visceral
  • Muscular
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2
Q

Vertebral compartment

A

Cervical vertebrae and postural (pre- and postvertebral) muscles
- Deep cervical fascia surrounds neck and sends septa internally to delineate compartments

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3
Q

Vascular compartment

A
  • Contains carotid arteries, IJV and CNX

- Surrounded by carotid sheath

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4
Q

Visceral compartment

A
  • Contains thyroid and parathyroid glands, pharynx, larynx, trachea and oesophagus
  • Surrounded by pre-tracheal fascia
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5
Q

Muscular compartment

A
  • Musculofascial collar

- Surrounded by pre-vertebral fascia

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6
Q

Anterior triangle of neck: boundaries

A
  • Inferior mandible border
  • Anterior border of sternocleidomastoid
  • Midsagittal line
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7
Q

Anterior triangle of neck: contents

A
  • Suprahyoid/infrahyoid muscles
  • CCA, IJV, facial artery/vein
  • CN IX, X, XII
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8
Q

Posterior triangle of neck: boundaries

A
  • Posterior border of sternocleidomastoid
  • Anterior border of trapezius
  • Middle 1/3 of clavicle
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9
Q

Posterior triangle of neck: contents

A
  • Occipital arteries
  • Omohyoid (inf belly)
  • EJV and transverse cervical/suprascapular veins
  • CN XI, cervical (phrenic) and brachial plexus
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10
Q

Anterior triangle of neck: subdivisions

A
  • Submental
  • Digastric/submandibular
  • Carotid
  • Muscular
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11
Q

Submental triangle of neck: boundaries and contents

A

Boundaries:

  • Midline of neck
  • Anterior belly of digastric
  • Hyoid bone

Contents:

  • Lymph nodes
  • Floor of mouth and tongue
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12
Q

Digastric/submandibular triangle of neck: boundaries and contents

A

Boundaries:

  • Mandible (body)
  • Anterior belly of digastric
  • Posterior belly of digastric

Contents:

  • Submandibular salivary gland
  • Lymph nodes
  • Facial artery and vein
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13
Q

Carotid triangle of neck: boundaries and contents

A

Boundaries:

  • Posterior belly of digastric
  • Medial border of sternocleidomastoid
  • Superior belly of omohyoid

Contents:

  • CCA
  • IJV
  • CN X and XII
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14
Q

Muscular triangle of neck: boundaries and contents

A

Boundaries:

  • Hyoid bone
  • Midsagittal line
  • Superior belly of omohyoid
  • Inferior border of sternocleidomastoid

Contents:

  • Infrahyoid muscles
  • Pharynx
  • Thyroid and parathyroid glands
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15
Q

Posterior triangle of neck: subdivisions

A
  • Occipital

- Subclavian

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16
Q

Occipital triangle of neck: boundaries and contents

A

Boundaries

  • Sternocleidomastoid
  • Trapezius
  • Omohyoid (inferior belly)

Contents

  • CNXI
  • Cervical plexus
  • Brachial plexus
  • Supraclavicular nerve
  • Transverse cervical vessels
17
Q

Subclavian triangle of neck: boundaries and contents

A

Boundaries:

  • Sternocleidomastoid
  • Trapezius
  • Omohyoid (inferior belly)
  • 1st rib

Contents:

  • Subclavian vessels
  • Brachial plexus
  • Lymph nodes
18
Q

Dermatomes of the neck

A

Cervical plexus

  • C1-4 and C5 ventral rami emerge between anterior and middle scalene muscles
  • Forms the phrenic nerve and ansa cervicalis (loop of nerves)

Head and Neck Anatomy (15 decks)

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