Anatomy Flashcards
Mesaticephalic
Mesati = medium. Most common head type. Labradors, DSH..
Bracychephalic
Brachy = short. Short, wide heads. Pugs, Persians..
Dolichocephalic
Dolicho = long. Long, narrow heads. Collies, Siamese..
Maxilla
Upper jaw.
Rugae Palatinae
Irregular ridges covering the hard palate
Incisive Papilla
Located behind the central incisors. Connected to the vomeronasal organ to detect pheromones.
Nasopalatine Ducts
Located on each side of the incisive papilla.
Lateral Palatine Fold
Area where the two jaws join in the back of he oral cavity.
Madible
Lower jaw.
Temporomandibular Joint
TMJ. Joint connecting he maxilla and the mandible.
Mandibular Symphysis
Where the wo mandibles are fused.
Oral Mucosa
Tissue that forms the lining of most of the oral cavity. Ends at the lips.
Cusp
Tip of the crown.
Enamel
Hardest substance in the body. Covers the crown. Only present above the gumline.
Ameloblasts
Cells producing enamel. Producing while the tooth is developing.
Neck
Indentation where the enamel thins close to the gumline.
Apex
Most caudal part of the root.
Apical Delta
Series of small channels where the blood vessels and nerves enter the tooth. Smaller than Apical Foramen
Apical Foramen
Series of larger channels where the blood vessels and nerves enter the tooth. Larger than Apical Delta
Dentine
Bulk portion of the tooth. Surrounded by enamel/cementum.
Odontobalsts
Cells producing dentine. Producing throughout the life of the tooth.
Pulp Chamber
Lined by odontoblasts. Consists of nerves, bloods vessels, and different types of o cells and fibrous tissues.
Root Canal
Portion of the pulp chamber below he gumline.
Attached Gingiva
Epithelial Tissue that is harder and more tightly attached to supportive structures.
Keratinization
Hardening process of the attached gingiva.
Free Gingiva
Portion of the gingiva that is not directly attached to the tooth or supporting structures.
Free Gingival Groove
Slight groove between the free and attached gingiva.
Sulcus
Area between the free gingiva and the tooth.
Diseased sulcus.
Alveolar Mucosa
Less densely keratinized gingival tissue covering the bone.
Attachment Apparatus
Includes the structures that support the tooth.
Periodontal Ligament
Fibrous structure that holds the tooth in place in the alveolus.
Alveolus
Tooth socket.
Cementum
Covers the dentine below the gumline. Can repair itself if damage.
Sharpey’s Fibers
Attaches the periodontal ligament to the cementum and the bone.
Furcation
Area where the roots join the crown
Bifurcation
Furcation in a 2 rooted tooth
Trifurcation
Furcation in a 3 rooted tooth
Diastema
Space between the lateral incisors and maxillary canine.
Cingulum
Ledge on the palatal side of the maxillary incisors.
Trigeminal Nerve
Responsible for the sensory innervation of the oral cavity. Divides into ophthalmic, mandibular and maxillary nerve.
Maxillary Nerve
Innervates the maxillary teeth and maxillary soft tissues. Branches into the infraorbital and palatine nerves
Mandibular Nerve
Branches into the lingual nerve (innervates the tongue) and branches into the mental nerves.
