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Head and Neck > Bones, Joints and Foramina of the skull > Flashcards

Bones, Joints and Foramina of the skull Flashcards

1
Q

Name the bones of the skull, Anterirorly to Posteriorly

A

Mandible

Maxilla

Nasal

Frontal

Zygomatic

Ethmoid

Sphenoid

Temporal

Parietal

Occipital

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2
Q

Name the Bones of the skull, Medially to Laterally

A

Nasal, Frontal, Parietal, Occipital, Maxilla, Mandible

Ethmoid

Sphenoid

Zygomatic

Temporal

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3
Q

Where do the 2 Parietal bones meet

A

At the Sagital suture

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4
Q

Where do the Parietal bones meet the Occipital bone

A

At the Lamboid Suture

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5
Q

What does the Optic canal/Optic Foramen transmit

A

Optic Nerve

Opthalmic Artery

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6
Q

What is the most important structure transmitted by the inferior orbital fissure

A

Maxillary nerve - Branch of the CN V the Trigeminal nerve

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7
Q

What Fossa Does the superor orbital fissure communicate with

A

Middle cranial fossa

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8
Q

What does the Superior orbital fissure transmit

A

Occulomotor nerve - CN II

Trochlear nerve - CN IV

Abducent nerve - CN VI

Terminal branches of the Opthalmic nerve

Opthalmic Veins

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9
Q

What does the foramen ovale tansmit

A

Mandibular division of the trigeminal nerve

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10
Q

What is the relation of the foramen spinosum to the foramen ovale

A

Foramen spinosum is posteror and slightly lateral to foramen ovale

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11
Q

what does the foramen spinosum transmit

A

Middle menigeal artery to the middle cranial fossa

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12
Q

What does the foramen rotundum conduct

A

Maxillary nerve into the pterygopalatine fossa

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13
Q

What does the foramen lacerum transmit

A

Internal carotid artery

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14
Q

What does the foramen magnum transmit

A

Vertebral Arteries

Medulla oblongata as it becomes continuous with the spinal cord

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15
Q

What does the jugular foramen transmit

A

Sigmoid sinus (which is continuous below with IJV)

Accessory nerve - CN XI

Vagus nerve - CN X

Glossopharyngeal - CN IX

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16
Q

What does the hypoglossal canal transmit

A

Hypoglossal nerve - CN XII

17
Q

What does the internal acoustic meatus transmit

A

Vestibulocochlear nerve - CN VIII

Motor & Sensory roots of facial nerve

Labyrinthine Vessels

18
Q

What does the Facial Canal transmit

A

Facial nerve through petrous temporal bone to stylomastoid foramen

19
Q

What does the stylomastoid foramen transmit

A

Facial nerve

Stylomastoid Artery

20
Q

What is the main foramina in the anterior cranial fossa

A

Cribiform plate

21
Q

What are the foramina in the middle cranial fossa that communicate witht the orbit

A

Superior orbital fissure

Optic canal

22
Q

What is lateral to the foramen rotundum

A

Foramen ovale

23
Q

What is posterior to the foramen ovale

A

Foramen spinosum

24
Q

What opens into the side wall of the foramen lacerum

A

Carotid canal - the pathway for the internal carotid artery

25
Q

What bone is the internal acoustic meatus in

A

Petrous part of the temporal bone

26
Q

What nerves enter the internal acoustic meatus

A

Vesibulocochlear Nerve - CN VIII

Facial Nerve - CN VII

27
Q

How do bones at the base of the skull and auditory ossicals develop

A

Endochondral ossification

28
Q

What forms the Zygomatic arch

A

The union of the temporal process of the zygomatic bone with the zygomatic process of the temporal bone.

29
Q

What are fibrous joints united with

A

Fibrous tissue

30
Q

What is a syndemosis

A

Type of Fibrous joint where the bones are united with a sheet of fibrous tissue, this join is particularly movable

31
Q

Where are the 2 synovial joints of the skull

A

Between the mandible and the temporal bone

Between the 3 ear ossicals withing the middle ear

32
Q

Which bones make up the cranium

A

Frontal

Temporal (2)

Parietal (2)

Occipital

Sphenoid

Ethmoid

33
Q

What bones contain sinuses

A

Frontal

Ethmoid

Sphenoid

Maxilla

34
Q

Where are the air sacs in the skull

A

Mastoid processes

35
Q

What typof joint is the Atlanto-occipital joint

A

Synovial ellipsoid joint

Head and Neck (5 decks)

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