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term 2 anatomy > The Skull > Flashcards

The Skull Flashcards

1
Q

The skeleton of the head is called what?

A

The skull

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2
Q

What is the cranium? What does it consist of?

A

Part of skull that contains brain (often used interchangeably with skull)

Consist of frontal, occipital, sphenoid, ethmoid, temporal and parietal bones

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3
Q

The dome like superior portion of the cranium is the _______ (part they remove for autopsies)

A

Calvaria

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4
Q

The bones that make up the face are known as _______. How many are there?

A

Facial skeleton (facial bones). 14.

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5
Q

The line of Union in an immovable articulation

A

Suture

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6
Q

What is the U shaped bone that forms the skeleton of the lower jaw and the inferior part of the face?

The largest and strongest facial bone

A

The mandible

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7
Q

Landmarks on mandible:

1) ‘Crown’
2) indentation posterior to coronoid process (ditch)
3) Condyle on posterior

A

Coronoid process
Mandibular notch
Head

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8
Q

4) Narrowing
5) arm like branch - vertical portion
6) horizontal portion

A

Neck
Ramus
Body (of the mandible)

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9
Q

7) where Ramus and body meet
8) bottom of mandible
9) mental nerves pass through
10) protuberance on chin

A

Angle (of the mandible)
Base
Mental foramen
Mental protuberance

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10
Q

11) pointed tooth of bone that overlaps mandibular foramen
12) chin fossa
…

Roughened area on inner aspect of angle of mandible

A 
Lingula
Mandibular foramen
Mandibular canal
Digastric fossa
Mylohyoid line
Pterygoid tuberosity
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11
Q

The frontal bone:

1) Bony ridge above eye socket
2) hairless, slightly rounded projection
3) above eye sockets
4) the frontal bone forms the roof of the eye sockets

A

The frontal bone

1) superciliary arch
2) glabella
3) supraorbital foramen
4) orbital surface

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12
Q

The parietal bones

Lies in temporal fossa, attachment for

1) temporalis fascia
2) temporalis muscle

A

1) superior temporal line

2) inferior temporal line

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13
Q

Where does the head of the mandible sit when the jaw is at rest ?

A

Mandibular fossa on temporal bone

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14
Q

Which part of the temporal bone is involved in the proper mechanics of TMJ?

A

Articular tubercle on temporal bone

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15
Q

Within the temporal bone is a cavity called ______

Which houses the 3 _________ (bones is the middle ear). Called what?

A

Tympanic cavity

Ossicles

Malleus, incus, stapes

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16
Q

The bony passageway from internal to external ear

A

External acoustic meatus

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17
Q

On the temporal bones which babies don’t have

A

Mastoid process

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18
Q

Which bone houses structures related to hearing and balance?

A

Temporal

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19
Q

Which muscles attaches on to the styloid process of the temporal bone?

A

Stylohyoid bone

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20
Q

Which bone is wedge shaped and anterior to temporal bones?

A

Sphenoid bone

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21
Q

Which gland is housed is the sella turcica?

A

Pituitary gland

22
Q

Which portion of the sphenoid muscle has a lateral and medial plate?

A

Pterygoid process

23
Q

How many bones does sphenoid articulate with ?

A

8

24
Q

Which bone forms the base of the skull?

A

Occipital bone

25
Q

Where does the nuchal ligament attach on the skull?

A

External occipital protuberance (inion)

26
Q

What is the hole at the base of the skull called?

A

Foramen magnum

27
Q

Lateral masses of C1 articulate with what to form Atlanto-occipital joint?

A

Occipital condyles

28
Q

What attaches to superior nuchal line?

A

Upper trap fibres, splenius capitis attaches

29
Q

What attaches to inferior nuchal line?

A

Rectus capitis posterior major and minor

Can’t palpate

30
Q

Nasal bones have one landmark…

A

Bridge of nose - has suture down the centre

31
Q

Which bone makes up the majority of the roof of the mouth?

A

The Maxillae

32
Q

Part of maxillae that articulates with zygomatic bone…

A

Zygomatic process

33
Q

On the maxillae what is the floor of the eye sockets called?

A

Orbital surface

34
Q

On the maxillae, forms socket for top teeth

A

Alveolar processes

35
Q

Infraorbital nerve exits where on which bone?

A

Infraorbital foramen on maxillae

36
Q

The cheek bones are called?

A

Zygomatic bones

37
Q

Portion on zygomatic bone that surrounds eye socket

A

Anterolateral and infra orbital margins

38
Q

Bone that separates the nasal cavity from the brain.

Deep in skull - has lots of holes

A

Ethmoid bone

39
Q

Ridge of bone (on ethmoid) that projects superiorly

A

Crista galli

40
Q

Crista galli is attachment place for what?

A

Falx cerebri

41
Q

What is the falx cerebri?

A

Arched fold of dura mater that descends vertically in the longitudinal fissure between the right and left hemispheres of the brain

42
Q

Passageway of olfactory nerves (holes on either side of crista galli)

A

Cribriform plate, ethmoid bone

43
Q

Forms the posterior and superior part of the nasal septum

A

Perpendicular plate

44
Q

Coronal suture
Sagital suture
Squamous suture
Lambdoid suture

A

Suture between frontal and parietal bones
Suture between parietal bones
Joint between parietal and temporal bones
Joint between temporal, occipital and parietal bones

45
Q

What is the meeting point between the coronal and Sagital suture called?

What is it called in babies?

A

Bregma

Anterior Fontanelle in babies

46
Q

What is the meeting point between the lambdoid and Sagital sutures?

A

Lambda

47
Q

What is the connection between the sphenoid, temporal, frontal and parietal bones called?
Weakest point

A

Pterion

48
Q

What is the orbit?

A

Eye socket - cone shaped cavity made of many bones.

Optic canal

49
Q 
What forms the eye sockets: 
Roof
Posterolateral wall
Posteromedial wall
Lateral wall
Floor
A 
Roof= Frontal bone
Posterolateral wall = sphenoid bone
Posteromedial wall = ethmoid bone
Lateral wall = zygomatic bone
Floor = maxilla
50
Q

What are sinuses?

A

Air filled extensions of nasal cavity

Lightens the skull, adds tone to voice, can house infections but are meant to protect against

51
Q

How many sinuses are there?

A

Frontal (2)
Sphenoidal (2)
Ethmoidal (2)
Maxillary (2)

52
Q

Which of the sinuses is largest?

A

Maxillary

term 2 anatomy (11 decks)

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