Anatomy Flashcards
(55 cards)
narrow slit lies between lips & cheeks externally and the teeth & gums internally.
Vestibule of the mouth
forming the rest of mouth cavity, containing mainly the tongue.
The oral cavity proper (buccal cavity )
mouth cavity : roofed by the …. that separates it from nasal cavity.
palate
hangs from posterior edge of soft palate
Uvula
At the posterior end of oral cavity , can be found?
palatine tonsils
lingual tonsil
A muscular organ lies in the floor of oral cavity, associated with the functions of taste, speech, mastication & deglutition.
tongue
formed of different intrinsic muscles + connected to the surrounding bones by extrinsic muscles
The tongue
tongue
represents its posterior part. it is connected to mandible.
-The root
tongue
main bulk and has dorsal & ventral surfaces.
The body
…… surface: rough and characterized by presence of different projections called …..
dorsal surface
lingual papillae.
They contain taste buds responsible for taste sensation.
lingual papillae
…. surface: is smooth showing median elevation (lingual frenulum) & lingual veins beside it.
ventral
The roots of these teeth are covered by mucosa called the …
gingivae (gums).
largest salivary glands,
They lie in front of the ear.
duct opens in the vestibule of the oral cavity
Major
2 parotid glands
floor of mouth under the angle of the “lower jaw.
duct opens in buccal part of the oral cavity
Major
2 submandibular glands
in the floor of mouth below the tongue.
duct opens in buccal part of the oral cavity .
Major
2 sublingual glands
continuous with the esophagus inferiorly
Laryngopharynx
walls of the pharynx contain two skeletal muscle layers:
Inner layer: which run ..?
longitudinally
walls of the pharynx contain two skeletal muscle layers:
Outer layer : run around the wall in a ..?
circular fashion
walls of the pharynx contain two skeletal muscle layers Alternating contractions of both layers induce ..?
peristalsis
GIT
The muscularis externa
made up of an inner…..
and an outer….. of smooth muscle cells.
circular layer
longitudinal layer
Ends in the stomach after piercing the diaphragm.
Esophagus
A muscular tube that passes in the neck, thorax & abdomen.
Esophagus
innermost layer, It consists
• Surface epithelium: simple columnar-
The mucosa, GIT