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Human Anatomy > The Skull > Flashcards

The Skull Flashcards

1
Q

What is the part of the skull called that protects the brain and serves as attachment points for head and neck muscles?

A

Neurocranium

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2
Q

What is the part of the skull that anchors expressive muscles, frames the face and secures teeth?

A

Viscerocranium

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3
Q

What bone is most anterior of the neurocranium?

A

Frontal bone

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4
Q

What bone is between the frontal and occipital?

A

Parietal (2)

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5
Q

What bone is the most posterior of the neurocranium?

A

Occipital

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6
Q

What bones are sat laterally of the neurocranium?

A

Temporal (2)

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7
Q

What suture sits between the frontal and parietal bones?

A

Coronal suture

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8
Q

What suture is between the two parietal bones?

A

Sagittal suture

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9
Q

What bone in the neurocranium is shaped like a butterfly?

A

Sphenoid

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10
Q

What suture is between the two parietal bones and the occipital?

A

Lambdoid suture

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11
Q

What is the point called where the temporal, occipital and parietal bones meet?

A

Asterion

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12
Q

What is the point called where the occipital and two parietal bones meet?

A

Lambda

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13
Q

What is the point called where the sphenoid, temporal, parietal and frontal bones meet?

A

Pterion

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14
Q

What is the point called where the frontal and the two parietal bones meet?

A

Bregma

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15
Q

How many of the 22 bones in the skull are fibrous joints and how many are synovial?

A

21 fibrous, 1 synovial (temporomandibular)

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16
Q

What is the name of the cheek bone in the viscerocranium?

A

Zygomatic

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17
Q

What is the name of the bone that houses the upper teeth in the viscerocranium?

A

Maxilla

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18
Q

Which bone is the most posterior in the roof of the oral cavity of the viscerocranium?

A

Palatine

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19
Q

Which bone in the viscerocranium has the sac that produces tears?

A

Lacrimal

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20
Q

Which bone makes up the superior part of the nose in the viscerocranium?

A

Nasal

21
Q

Which bone in the viscerocranium sits at the lateral wall of the nasal cavity?

A

Inferior concahe

22
Q

Which small, thin bone separates the left and right nasal cavities in the viscerocranium?

A

Vomer

23
Q

Where does the olfactory (I) nerve leave the brain?

A

Perforated cribriform plate to nasal cavity

24
Q

Where does the optic (II) nerve leave the skull?

A

Optic canal to the orbital

25
Q

Where does the oculomotor (III) nerve leave the skull?

A

Superior orbital fissure to the orbit

26
Q

Where does the trochlear (IV) nerve leave the skull?

A

Superior orbital fissure to the orbit

27
Q

Where does the trigeminal (V) nerve leave the skull?

A

Ophthalmic branch = superior orbital fissure, maxillary branch = foramen rotundum, mandibular branch = foramen ovale

28
Q

Where does the abducens (VI) nerve leave the skull?

A

Superior orbital fissure to orbit

29
Q

Where does the facial (VII) nerve leave the skull?

A

Internal acoustic meatus to tongue, lacrimal gland and facial muscles

30
Q

Where does the vestibulocochlear (VIII) nerve leave the skull?

A

Internal acoustic meatus to inner ear

31
Q

Where does the glossopharyngeal (IX) nerve leave the skull?

A

Jugular foramen to pharynx, salivary gland and tongue

32
Q

Where does the vagus (X) nerve leave the skull?

A

Jugular foramen to pharynx, oesophagus and soft palate

33
Q

Where does the spinal accessory (XI) nerve leave the skull?

A

Jugular foramen to trapezius and sternocleidomastoid muscles

34
Q

Where does the hypoglossal (XII) nerve leave the skull?

A

Hypoglossal canal to tongue

35
Q

Where does the spinal cord exit the skull?

A

Foramen magnum

36
Q

Which feature of the sphenoid bone houses the pituitary gland?

A

Sella turcica (Turkish saddle)

37
Q

What are the muscles that attach to the sphenoid bone used for?

A

Mastication

38
Q

How many canals does the temporal bone have for arteries and veins?

A

7

39
Q

What is the outermost layer of teeth called?

A

Enamel

40
Q

What sits below the enamel?

A

Dentin

41
Q

What is below the dentin?

A

Pulp and pulp cavity

42
Q

What is the part of the tooth called that sits below the gum?

A

Root

43
Q

What is the part of the tooth called that sits above the gum?

A

Crown

44
Q

How many incisors (permanent)?

A

8

45
Q

How many canines (permanent)?

A

4

46
Q

How many premolars (permanent)?

A

8

47
Q
A
48
Q

How many molar (permanent)?

A

12

49
Q

Why not all people have all 12 molars?

A

Wisdom teeth don’t erupt

Human Anatomy (18 decks)

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