Mouth/Oral Cavity/Buccal Cavity Flashcards
Foods enter the digestive tract through
Oral cavity, Mouth or Buccal Cavity
Protect the opening of the chamber anteriorly, the cheeks form its lateral walls, and the palate form its roof.
The lips (labia)
The anterior portion of the palate is referred to as the [. ] because the palatine processes of the maxillae and horizontal plates of the palatine bones underlie it.
Hard Palate
The posterior [. ] is a fibromuscular structure that is unsupported by bone.
Soft Palate
A finger-like projection of the soft palate extends inferiorly from its posterior margin. The soft palate rises to close off the oral cavity from the nasal and pharyngeal passages during swallowing.
Uvula
The floor of the oral cavity is occupied by the muscular tongue, which is largely supported by the [. ] and attaches to the hyoid bone, mandible, styloid processes and pharynx.
Mylohyoid muscle
Secures the inferior midline of the tongue to the floor of the mouth.
Lingual frenulum
The space between the lips and the cheeks and the teeth and gums
Oral vestibule
The area that lies within the teeth and gums
Oral cavity proper
One of the hard calcified structures set in the alveolar processes of the jaws for biting and mastication of food.
Teeth
Is a muscular organ attached to the floor of the mouth. It is the chief organ of taste and aid in mastication, swallowing and speech.
Tongue
Are three pairs of glands whose combined secretions constitute the saliva.
Salivary Glands
THREE PAIRS OF SALIVARY GLANDS:
Parotid gland
Sublingual gland
Submandibular or Sub-maxillary gland
Is the largest among the salivary glands that lies immediately inferior and anterior to the external ear which has a duct that opens into the oral vestibule opposite the second upper molar called the “Stensen’s duct”.
Parotid Gland
Is composed of a group of smaller glands which is narrow and elongated in form which has also a duct that opens beside the orifice of the Wharton’s duct called the “Bartholin’s duct”/”Duct of Rivinus”.
Sublingual Gland