ग्रीवा का अग्र भाग

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BORDERS:
- - Superior ( ऊर्ध्व ) - inferior border of mandible (
- - Medial - midline of neck ( गर्दन की मध्य रेखा )
- - Lateral ( पार्श्व ) - anterior border of sternocleidomastoid muscle ( पेशी )
CONTENTS
- Muscles: ( पेशी )
  - thyrohyoid, sternothyroid, sternohyoid muscles
- Organs: ( अङ्ग् )
  - thyroid gland, parathyroid glands, larynx, trachea, esophagus, submandibular gland, caudal part of the parotid gland
- Arteries: ( धमनी )
  - superior and inferior thyroid, common carotid, external carotid, internal carotid artery (and sinus), facial, submental, lingual arteries
- Veins: (शिरा )
  - anterior jugular veins, internal jugular, common facial, lingual, superior thyroid, middle thyroid veins, facial vein, submental vein, lingual veins
- Nerves: ( तंत्रिका )
  - vagus nerve (CN X), hypoglossal nerve (CN XII), part of sympathetic trunk, mylohyoid nerve
Subdivisions:
- - Muscular (omotracheal) triangle ( पेशी त्रिकोण , श्वासस्कन्ध त्रिकोण )
  - Borders ( किनारे )
    - Superior - hyoid bone ( ऊपर - कंठास्थि )
    - Lateral - superior belly of omohyoid and anterior border of sternocleidomastoid
      - पार्श्व ऊपर ( superolateral) - स्कन्धकंठ पेशी
      - पार्श्व नीचे ( inferolateral) - sternocleidomastoid
    - Medial ( मध्य ) - midline of neck ( ग्रीवा का मध्य रेखा )
  - Contents ( अंतर्वस्तु )
    - Muscles(पेशी ): thyrohyoid, sternothyroid, sternohyoid
    - Vessels(वाहिका ): superior and inferior thyroid arteries, anterior jugular veins
    - Viscera(अङ्ग् ): thyroid gland ( अवटु ग्रन्थि ), parathyroid glands ( परवाटू ग्रन्थि ), larynx ( स्वरयंत्र ), trachea ( श्वासनाल ), esophagus ( ग्रसनाल )
- - Carotid triangle ( कर्णग्रीवा त्रिकोण )
  - Borders ( किनारा )
    - Anterior(अग्र ) - superior belly of omohyoid muscle
    - Superior ( ऊर्ध्व ) - stylohyoid and posterior belly of digastric muscles
    - Posterior( पश्च ) - anterior border of sternocleidomastoid muscle
  - Contents ( अंतर्वस्तु )
    - Arteries(धमनी ): common carotid, external carotid (and branches except maxillary, superficial temporal and posterior auricular), internal carotid artery (and sinus)
    - Veins(शिरा): internal jugular, common facial, lingual, superior thyroid, middle thyroid veins
    - Nerves(तंत्रिका ): vagus nerve (CN X), hypoglossal nerve (CN XII), part of sympathetic trunk
- - Submandibular triangle ( अध:हनु त्रिकोण )
  - Borders
    - Superior ( ऊर्ध्व ) - inferior border of mandible
    - Lateral (पार्श्व )- anterior belly of digastric muscle
    - Medial (मध्य )- posterior belly of digastric muscle
  - Contents ( अंतर्वस्तु )
    - Viscera: submandibular gland and lymph nodes (anteriorly), caudal part of the parotid gland (posteriorly)
    - Vessels: facial artery and vein, submental artery and vein, lingual arteries and veins
    - Nerves: mylohyoid, hypoglossal (CN XII)
- - Submental triangle ( अधःचिबुक त्रिकोण )
  - Borders (किनारा )
    - Inferior ( अधः ) - hyoid bone ( कंठास्थि )
    - Lateral ( पार्श्व )- anterior belly of digastric muscle
    - Medial (मध्य ) - midline of neck ( ग्रीवा का मध्य रेखा )
  - Contents (अंतर्वस्तु )
    - Anterior jugular vein, submental lymph nodes

ग्रीवा का अग्रवर्ती त्रिकोण

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