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Anatomy Year 2 - Head + Neck > Week 3 - DRY > Flashcards

Week 3 - DRY Flashcards

1
Q

Which bone forms the posterior boundary of the anterior cranial fossa?

A

Sphenoid

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2
Q

Which bone forms the anterior boundary of the middle cranial fossa?

A

Sphenoid

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3
Q

Which 2 bones form the floor of the middle cranial fossa?

A

Temporal bone (squamous and petrous parts)

Spenoid

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4
Q

Which four bones come together at the pterion shaped suture?

A

Frontal

Spenoid

Temporal

Parietal

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5
Q

Which bone forms the anterior and which the posterior border of the posterior cranial fossa?

A

Anterior = temporal (corrected)

Posterior = occipital

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6
Q

What structures pass through the small foramina of the skull?

A

Cranial nerves

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7
Q

What structure(s) passes through:

Foramina of the cribriform plate

A

Olfactory nerve (CN I)

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8
Q

What structure(s) passes through:

Optic foramen

A

Optic nerve (CN II)

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9
Q

What structure(s) passes through:

Superior orbital fissure

A
  • Oculomotor n
  • Trochlear n
  • Abducen
  • V1 (opthalmic division)
  • Opthalmic vein
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10
Q

What structure(s) passes through:

Foramen rotundum

A

V2 (maxillary division)

Note: Branches of it also passes through inferior orbital fissue

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11
Q

What structure(s) passes through:

Foramen spinosum

A

Middle meningeal artery & vein

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12
Q

What structure(s) passes through:

Foramen lacerum

A
  • Filled with connective tissue.

2 vessels:

  • Small meningeal divisions of the ascending pharyngeal artery.
  • Emissary veins travels via the cavernous sinus towards the pterygoid venous plexus.
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13
Q

What structure(s) passes through:

Carotid canal

A

Internal carotid artery

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14
Q

What structure(s) passes through:

Internal acoustic foramen

A

Facial nerve n

Vestibulocochlear n

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15
Q

What structure(s) passes through:

Jugular foramen

A

Vagus n

Glossopharyngeal n

Accessory n

IJV

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16
Q

What structure(s) passes through:

Hypoglossal foramen

A

Hypoglossal nerve

17
Q

What structure(s) passes through:

Foramen magnum

A

Medulla

Vertebral arteries

18
Q
  1. What groove begins just lateral to the foramen spinosum.
  2. What artery and its branches makes this groove?
A

Middle Meningeal Artery grove

MMA (Sayed)

19
Q

Into which foramen does the groove for the sigmoid sinus lead?.

A

Jugular foramen

20
Q

Which major vein emerges into the neck from the jugular foramen?

A

IJV

21
Q

In the body of which cranial bone is the sella turcica found?

A

Sphenoid

22
Q

Which foramen lies immediately anterior to the groove for the cavernous sinus?

A

Superior orbital fissure

23
Q

Which bone are the pterygoid plates and the pterygoid hamulus part of

A

Sphenoid

24
Q

Name the muscle(s) that attach to:
1. the medial pterygoid plate

A

Superior pharyngeal constrictor

25
Q

Name the muscle(s) that attach to:
2. the lateral pterygoid plate

A

Medial & lateral pterygoids

26
Q

What are the advantages for a neonate of having a comparatively flexible skull?

1 During childbirth it allows for
2 During infancy it
3 In the event of accidents such as falls

A
  • Bones can slide over/ overlap, making it easier for the baby’s head to pass through without brain damage
  • Allows brain to grow rapidly
  • Less likely to fracture
27
Q

What type of ossification occurs in:
flat bones of the vault of the skull?

A

Intermembranous

28
Q

What type of ossification occurs in:

irregular bones of the base of the skull?

A

Endochondrial

29
Q

At what age do the following fontanelles fuse?
Anterior
Posterior

A

Anterior = 18 months after birth (1.5 Y/O)

Posterior = 2-3 months after birth

30
Q

What type of epithelium lines the dorsal surface of the tongue?

A

Keratinised stratified sqaumous

31
Q

What type of muscle fibres underlies the epithelium of the tongue?

A

Striated (skeletal)

32
Q

What is the acinus

A

The rounded secretory component of a gland

33
Q

What do serous acini secrete, and do they strain strongly or poorly?

A

Proteins

Stains strongly

34
Q

What do mucous acini secrete, and do they strain strongly or poorly?

A

Glycoprotein

Stains poorly

35
Q

What is the function of myoepithelial cells

A

Contract and expel secretions of exocrine glands

36
Q

What gland is this and what type of secretions?

A

Parotid

Serous

37
Q

What gland is this and what type of secretions?

A

Sublingual

Mucous

38
Q

What gland is this and what type of secretions?

A

Submandibular

Mixed

Anatomy Year 2 - Head + Neck (7 decks)

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