The Pharynx (Anatomy of the Neck)
38
PHARYNX (Page 117) Dr.Sherif Fahmy
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Transcript of The Pharynx (Anatomy of the Neck)
PHARYNX(Page 117)
Dr.Sherif Fahmy
Shape & ExtensionsShape: Funnle-shaped.Extensions:
- Above: base of skull.- Below: Esophagus at level of C6
vertebra.Length: 5 inchesDiameter: 3.5 cm at upper end & 1.5 cm at lower end. Dr.Sherif Fahmy
Parts of Pharynx•1- Naso-pharynx•2- Oro-pharynx•3- Laryngo-pharynx
Dr.Sherif Fahmy
Naso-pharynx
oro-pharynx
Laryng-pharynx
Soft palate
Epiglottis
Larynx
Sagittal Section
Dr.Sherif Fahmy
Relations of pharynxDr.Sherif Fahmy
Larynx
Nasal cavity
Oral cavity
Dorsum of tongue Upper 6 cervical vertebrae
Anterior & Posterior Relations
Dr.Sherif Fahmy
Lobe of thyroid glandCommon carotid
art.
Styloid apparatus
Lateral Relations
Dr.Sherif Fahmy
Layers of Wall of pharynx1- Mucosa.2- Submucosa.3- Pharyngo-basilar fascia.4- Muscle layer.5- Buccopharyngeal fascia.
Dr.Sherif Fahmy
Muscles of PharynxA- Constrictor musclesB- Longitudinal muscles
Dr.Sherif Fahmy
Constrictor Muscles(Page 119)
Dr.Sherif Fahmy
Crico-pharyngeus m
Thyro-pharyngeus m3- Inferior
Constrictor m
Cricoid
Thyroid
Hyoid
Stylohyoid lig.
2- Middle constrictor m
Pterygoid hamulus
Pterygo-mandibular lig.
1- Superior constrictor m
Pharyngeal tubercle
Pharyngeal raphe
Dr.Sherif Fahmy
Gaps Between Constrictor Muscles
Dr.Sherif Fahmy
Cricoid
Thyroid
Hyoid
Tensor palati m.Auditory tube
Tensor palati m.
Stylopharyngeus m.
Glossopharyngeal nerve
Superior laryngeal art.Internal laryngeal nerve
Thyro-hyoid membrane
Dr.Sherif Fahmy
Dr.Sherif Fahmy
Longitudinal Muscles of Pharynx
• 1- Stylo-pharyngeus muscle• 2- Palato-pharyngeus muscle• 3- Slapingo-phryngeus muscle
Dr.Sherif Fahmy
Auditory tube
Salpingo-pharyngeus m.
Soft palate
Palato-pharyngeus m
Stylo-pharyngeus m
Thyroid cartilage
Wall of pharynx
Styloid process
Dr.Sherif Fahmy
Cavity of Pharynx
Dr.Sherif Fahmy
Naso-pharynx
oro-pharynx
Laryng-pharynx
Soft palate
Epiglottis
Larynx
Sagittal Section
Dr.Sherif Fahmy
A- Naso-pharynx1- Boundaries.2- Communications.3- Internal features.
Dr.Sherif Fahmy
Naso-pharyngeal tonsil
Opening of auditory tube
Tubal elevation
Salpingo-pharyngeal foldPharyngeal recess
Dr.Sherif Fahmy
B- Oro-pharynx1- Boundaries.2- Communications.3- Internal features.
Dr.Sherif Fahmy
Palatine tonsil
Dr.Sherif Fahmy
Palatine tonsils
Palato-glossal fold
Palato-pharyngeus fold
Dr.Sherif Fahmy
Uvula (median part of soft palate)
Palato-glossal fold
Palato-pharyngeal fold
Palatine tonsil
Dr.Sherif Fahmy
Palatine Tonsil(Page 124)
Dr.Sherif Fahmy
Palatine tonsil
Dr.Sherif Fahmy
Relations of Palatine Tonsil
Dr.Sherif Fahmy
Palatine tonsil
Dr.Sherif Fahmy
Palato-glossal fold
Palato-pharyngeal fold
Palatine tonsil
Dr.Sherif Fahmy
Intra-tonsillar cleft
Tonsillar crypts
capsule Superior constrictor m.
Paratonsillar vein
Facial art.
Ascending palatine art.
I.C.A.
Medial
Dr.Sherif Fahmy
Arterial supply of palatine tonsil:1- Tonsillar branch of facial artery.2- Ascending pharyngeal artery.3- Ascending palatine artery.4- Lesser palatine artery.5- Dorsal lingual arteries from lingual artery.
Nerve supply:1- Glossopharyngeal nerve.2- Lesser palatine nerve.Lymph drainage:1- Jugulo-digastric nodes.Surface anatomy:- Oval area on ramus of mandible, above and infront angle of mandible. Dr.Sherif Fahmy
C- Laryngo-pharynx1- Boundaries.2- Communications.3- Internal features.
Dr.Sherif Fahmy
Posterior view
Posterior wall of pharynx (Cut)
Piriform recess
Inlet of larynx
Pathway of food during swallowing
Dr.Sherif Fahmy
Waldeyer’s Ring of Lymphoid Tissue
• 1- Nasopharyngeal tonsil• 2- Palatine tonsils• 3- Lingual tonsil• 4- Tubal tonsils
Dr.Sherif Fahmy
Palatine tonsil
Naso-pharyngeal tonsil
Tubal tonsil
Lingual tonsil
Dr.Sherif Fahmy
Arterial Supply of Pharynx• 1- Ascending pharyngeal artery.• 2- Ascending palatine artery.• 3- Pharyngeal branch from maxillary artery.
• Pharyngeal plexus:• 1- Pharyngeal branch of glosso-pharyngeal nerve (sensory).• 2- Pharyngeal branch of vagus (Motor).• 3- Pharyngeal branch from superior cervical sympathetic
ganglion (sympathetic)
Dr.Sherif Fahmy
Dr.Sherif Fahmy
Dr.Sherif Fahmy
