Download presentation
1
In the name of God The mouth
2
The mouth Involved in: Eating Drinking Tasting Speaking Breathing
3
The mouth From the lips & cheeks
To the oropharyngeal isthmus (palatoglossal fold) Division Vestibule (delineated externally by lips& cheeks and internally by dental arches & teeth) Fornix vestibuli Oral cavity proper, bounded by dental arches & teeth Roof (hard & soft palates) Floor of the mouth
4
Lips Mobile muscular fold Contain: Muscle Vessels Nerves
Small salivary glands Covered by: Skin (externally) Mucous membrane (internally); frenulae philtrum
5
Cheeks Forms lateral movable walls of the oral cavity Contain:
muscle, vessels, nerves, fat & buccal glands Covered by skin and mucosa Parotid papilla
7
Teeth Type Primary (milky or deciduous) erupt at about 6 months to 3 years (20) Secondary (permanent) erupt at 6-21 years (32)
8
Teeth Primary (milk or deciduous) Incisor Central; 6-8 m,
Lateral; 8-10 m, Canine; 16-20m, Molar First; m, Second; m.,
9
Teeth Secondary (permanent)
- Incisor (cutting edge) Central (7-8 Y) Lateral (8-9 Y) Canine (single cone)(10-12y) Premolar (bicuspids) First (10-11y) Second (11-12 y) Molar (3 or more cusps) First (6-7 y) Second (12 y) Third ( y)
10
Teeth Surface Labial or buccal Lingual or palatal Contact
Mesial and Distal Occlusal
11
Teeth Parts Crown Neck Root
13
palate Separates oral cavity from nasal cavity
Consist hard and soft palates
14
Hard palate Formed by Maxillae and Palatine bones
Five foramina are opened Covered by mucosous membrane
15
Soft palate Formed by muscles and aponeurosis
Attached to the posterior border of hard palate
16
Soft palate Muscles: Tensor veli palatini Levator veli palatini
Palatopharyngeus Palatoglossus Uvula
18
Tongue Is a mobile muscular organ Has three parts Root Body Apex
19
Tongue Surfaces Dorsum Terminal sulcus Foramen cecum
- Anterior two- third Lingual papillae Fungiform Filiform Vallate Foliate
20
Tongue Posterior one-third Lingual tonsil
Median and lateral glossoepiglotic folds Vallecullae
21
Tongue Inferior surface Frenulum Lingual vein Fimbriated fold
22
Tongue Muscles Extrinsic: Genioglossus (protrusion) Hyoglossus
(depression) Styloglossus (retraction & elevation) Palatoglossus (elevation)
23
Tongue Muscles Intrinsic Superior longitudinal Inferior longitudinal
Transverse Vertical
24
Lingual Muscles Function Superior: shorten, dorsum concave
Inferior: shorten, dorsum convex Transverse: narrows and elongates Vertical: flat, wider
27
Submandibular gland Superior and inferior to the mylohyoid m.
Duct 5 cm Nerves?
28
Sublingual gland Above mylohyoid, beneath mocous membrane of floor of the mouth Sublingual ducts Nerves??
29
Parotid gland Situation Duct
35
Pharynx Behind; nose, mouth & larynx From; cranial base
To the; level of C6
36
Pharynx Musculomembranous Tube,12-15 cm long In front ; incomplete
Behind related to the; cervical vertebrae Retropharyngeal space Prevertebral fascia
37
Pharynx Above; limited by sphenoid & occipital Bones
Below; continuous with esophagus
38
Pharynx Attached to the: Med . Pterygoid plate Pterygomandibular Raphe
Mandibule Tongue Hyoid bone Thyroid & cricoid cartilages
39
Pharynx Divided into : Nasopharynx Oropharynx Laryngopharynx
40
Nasopharynx Behind post. Nasal aperture Above soft palate
Has static wall Separated from oropharynx by pharyngeal Isthmus
41
Nasopharynx Roof & posterior, sloping part Pharyngeal tonsil
Pharyngobasilar fascia
42
Nasopharynx Floor; upper part of soft palate
43
Nasopharynx Lateral walls
Pharyngotympanic (Auditory or eustachian) opening Tubal elevation Salpingopharyngeal fold
44
Oropharynx From ; soft palate To; epiglottis open into mouth
palatoglossal fold palatopharyngeal fold
45
palatine tonsil Tonsilar fossa (sinus) Oval lymphoid tissue
Size variable / maximum at puberty Medial surface is free & has10-15pits
46
palatine tonsil Lateral surface Covered by hemicapsular fibrous tissue
Tonsilar branch of facial art. External(Paratonsilar) palatine vein (heamorrhage)
47
palatine tonsil Artery: Tonsilar Ascending palatine
Ascending pharyngeal Vein: - Paratonsilar → pharyngeal or facial V.
48
Waldeyer’s ring Macosa – associated lymphoid tissue Lingual tonsil
Palatine tonsil Tubal tonsil Nasopharyngeal tonsil Smaller collection of lymphoid tissue
49
Laryngopharynx From epiglottis To cricoid cartilage
Anteriorly related to the : laryngeal inlet Post. surface of larynx Piriform fossa Each side of inlet Internal larygeal N . Posterioly related to the C3-C6
50
Muscles Extrinsic Stylopharyngeus From; styloid process
To; pharyngeal wall thyroid cartilage Nerve ; glossopharyngeal Action ; elevator
51
Muscles Extrinsic Salpingopharygeus (salpinx=tube)
From, Eustachian tube To ; pharyngeal wall Action ; elevator Palatopharyngeus
52
Intrinsic (constrictor) muscles
Superior From; Hamulus Pterygomandibular raphe mylohyoid line Tongue To; pharyngeal raphe pharyngeal tubercle
53
Intrinsic(constrictor) muscles
Middle From; greater & lesser hyoid horn To, pharyngeal raphe
54
Intrinsic(constrictor) muscles
Inferior From; cricoid & thyroid cartilages To; pharyngeal raphe
55
Pharyngeal muscles Action; sphincter &
Peristaltic action in swallowing.
56
Arteries of the pharynx
Ascending pharyngeal Ascending palatine Tonsilar Maxillary art. Lingual Art. (dorsal brs.)
57
Veins Pharyngeal plexus Facial Int. jugular
58
Innervation pharyngeal plexus Sympathetic (SCG) Vagus Accessory
Glossopharyngeal Maxillary nerve
59
Passavant’s sphincter
Superior part of sup. Constrictor and palatopharyngeus
60
Anatomy of swallowing Oral phase Pharyngeal phase Oesophageal phase
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.