O&A Head Flashcards

1
Q

What does the lateral ligament of the mandible restrict?

A

Lateral and posterior motion

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2
Q

What results with protrusion of the mandible?

A

Superior translation of Condyles

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3
Q

What occurs in depression or opening of the mouth?

A

Rolling of inferior articular cavity

Translation of superior articular cavity

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4
Q

What occurs in lateral deviation of the mandible?

A

Anterior translation of contralateral side

Slight posterior translation of ipsilateral side

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5
Q

What is the primary movement of the inferior joint cavity of the TMJ joint?

A

Rotation

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6
Q

What is the primary movement of the superior joint cavity of the TMJ joint?

A

Translation

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7
Q

What forms the inferior surface of the inferior joint cavity of the TMJ joint?

A

Condyle

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8
Q

Where are the anterior fontanelle present in infancy?

A

Between halves of frontal bone and the right and left parietal bones

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9
Q

Neurocranium

A

Bony case of the brain and its membranous coverings, the cranial meninges (contains nerves and vasculature of the brain)

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10
Q

What makes up the cranium?

A

Calvaria (skull cap)

Cranial base (floor)

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11
Q

Viscerocranium

A

Comprises the facial bones and forms anterior part of cranium

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12
Q

What make up the facial aspects of the head?

A

Orbital cavities

Nasal cavities

Zygomatic arch

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13
Q

Orbital cavities

A

Consists of the nasal cavities and paranasal sinuses

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14
Q

Nasal cavities

A

Hollow spaces in the skull around the nose

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15
Q

Zygomatic arch

A

Formed by the Union of temporal process of zygomatic bone and zygomatic process of the temporal bone

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16
Q

What makes up the lateral aspects of the head?

A

Temporal fossa

Superior and inferior temporal lines

Zygomatic arch

Infratemporal fossa

Temporomandibular joint

External acoustic meatus

17
Q

Temporal fossa

A

Bounded superiorly and posteriorly by the superior and inferior temporal lines

Anteriorly by the frontal and zygomatic bones

Inferiorly by the zygomatic arch

18
Q

Superior and inferior temporal lines

A

Bound the temporal fossa

19
Q

Temporomandibular joint

A

Joint connecting jaw to skull

20
Q

External acoustic meatus

A

Eardrum

21
Q

What makes up the occipital aspects of the head?

A

Parietal eminence

Sagittal suture

Lamboid suture

Occipitomastoid suture

Parietomastoid suture

22
Q

What makes up the superior aspect of the head?

A

Coronal suture

Bregma

Sagittal suture

Vertex

Lambda

Lamboid suture

23
Q

What are external on the cranial base?

A

Foramen magnum

Carotid canal

24
Q

Foramen magnum

A

Opening in base of skull where spinal cord and brain connect

25
Q

Carotid canal

A

Passageway in temporal bone where carotid artery goes through

26
Q

What makes up the internal of the cranial base?

A

Anterior cranial fossa

Middle cranial fossa

Posterior cranial fossa

Cerebellar fossa

Foramen magnum

27
Q

What do the anterior, middle, and posterior cranial fossa’s form?

A

Bowl shaped floor of cranial cavity

28
Q

What type of joint is the cranial sutures?

A

Fibrous

29
Q

What type of joint is the TMJ joint?

A

Synovial hinge

30
Q

What are articular surfaces of TMJ joints?

A

Mandibular fossa

Articular tubercle of temporal bone and head of mandible

31
Q

What type of capsule does the TMJ have?

A

Fibrous

32
Q

What are ligaments associated with the TMJ joint?

A

Lateral ligament

Stylomandibular ligament

Sphenomandibular ligament