DENTAL ANATOMY REVIEW TEST #1

Portion of tooth visible in oral cavity

Clinical crown

Fan shaped tongue muscle that forms majority of body of tongue?

Genioglossus

Thin fold of mucous membrane that extends floor of mouth to under tongue?

Lingual frenulum

Spasm of the muscles of mastication is known as?

Trismus

The muscle sometimes referred to as the “pouting muscle”?

Mentalis

There are ____ pair of cranial nerves

12

This bone forms the posterior and inferior part of the nasal septum?

Vomer

Study of bones is known as what?

Osteology

Bone that makes up posterior part of the cranium

Occipital

Three types of muscles found in the body?

• Cardiac (involuntary)

• Smooth (involuntary)

• Skeletal (voluntary)

Muscles of facial expression:

• Buccinator

• Orbicularis oris

• Zygomatic major

• Mentalis

The TMJ is located between the glenoid fossa & articular eminence on which bone?

Temporal bone

The nerve that supplies that maxillary first & second pre molars, emithal buccal root of the maxillary first molar & maxillary sinus

Middle superior alveolar

Muscles of the floor of the mouth?

• Mylohyoid

• Geniohyoid

• Stylohyoid

• Digastric

What is known as “dry mouth”

Xerostomia

What are the major salivary glands?

• Parotid gland

• Submandibular

• Sublingual

The ___ is the angle at the corner of the mouth where the upper and lower lips join

Labial commissure

Salivary glands secrete ____ liters of saliva per day?

1.7

Supplies the entire length of mandible and divided into the incisive and mental branches opposite the first premolar on each side

Inferior alveolar

The duct is located in floor of the mouth on each side of the lingual frenum

Wharton’s duct

Space between the teeth and the inner mucosal lining of the lips & cheeks

Vestibule

The ___ nerve is the primary source of innervation for the oral cavity and subdivided into these three main branches

Trigeminal

• Maxillary

• Mandibular

• Opthalmic

A disorder of the salivary glands known as ___ or dry mouth can result in an increase in dental decay and problem in speech and chewing

Xerostomia

A benign bony growth that projects outward from the surface of a bone is known as

Tori

The ___ nerves continues anteriorly within the bone and gives off small branches to supply the incisor teeth

Incisive

The ___ sinuses are the largest and are located below each eye and on each side of the nose

Maxillary

The muscles of mastication include the

• Temporal

• Masseter

• External pterygoid

• Internal pterygoid

The ___ is an oval depression in the temporal bone just another to the external auditory meatus

Glenoid Fossa

The ___ forms the lips and is made up of many layers of fibers surrounding the mouth

Orbicularis oris

Devices for measuring the relationship of the maxilla to the temporomandibular joints is known as a ___

Face bow

Elevates the hyoid bone, supports and raises the floor of mouth

Mylohyoid

The cranium consists of 8 cranial bones ___ facial bones, and 6 auditory ossicles

14

The lower jaw, the longest and strongest bone of the face

The mandible

Depresses and protrudes the tongue

Genioglossus

A round or slightly curved projection

Protuberance

The socket or oepning in bone which surrounds the root of a tooth

Alveolus