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Horizontal sections (cross-sectional relations) of the Pharynx, + - Coggle…
Horizontal sections (cross-sectional relations) of the Pharynx
Nasopharynx Level (Cavum)
Central Core
Cavum lined by Superior Pharyngeal Constrictor (CSP)
Pharyngeal raphe posteriorly
Anterior
Nasal cavities
Maxillary sinus
Medial lamina of pterygoid process
Anterolateral / Masticatory Space
Masseter, Coronoid process / Temporalis muscle
Medial & Lateral pterygoid muscles, Mandibular condyle
Posterior
Retropharyngeal space
Posterolateral / Lateral
Stylopharyngeus (S-Ph) & Styloid process
Parotid gland
Digastric muscle
Mastoid process
Sternocleidomastoid (SCM)
Laryngopharynx Level
Anterior / Laryngeal Structures
Thyroid cartilage
Cricoid cartilage
Arytenoid cartilage
Vocal ligament & Vocalis muscle
Pharyngeal Boundary
Inferior Pharyngeal Constrictor (CIP) — specifically the thyropharyngeal part
Posterior / Luminal Space
Laryngeal part of the pharynx (surrounding the laryngeal inlet & piriform recesses)
Oropharynx Level (C2 Vertebral Level)
Central Core
Oropharynx with Palatine tonsils bounded by Superior Pharyngeal Constrictor (CSP) and Exopharyngeal fascia
Posterior
Posterolateral Structures
Parotid gland
Facial nerve (CN VII)
Sternocleidomastoid (SCM)
Retropharyngeal space (at C2)
Anterior
Oral cavity, Buccinator muscle, Pterygomandibular raphe
Lateral / Infratemporal Space
Mandibular ramus
Medial pterygoid muscle
Parapharyngeal Space Divisions
Pre-styloid compartment
Retro-styloid compartment
Styloid Curtain (curtain of styloid muscles/ligaments)
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