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Anatomy > Lecture 1-2 > Flashcards

Lecture 1-2 Flashcards

(57 cards)

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1
Q

What 3 parts is the Skull divided into?

A

1) Vault
2) Base
3) Face

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2
Q

Which bones make up the vault?

A

1) Frontal
2) Parietal
3) Occipital
4) Temporal
5) Sphenoid

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3
Q

What are the 4 major sutures in the vault?

A

1) Lambdoid
2) Coronal
3) Sagittal
4) Squamosal

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4
Q

Which 2 sutures meet at the bregma junction?

A

Coronal and Sagittal

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5
Q

Which 2 sutures meet at the lambda junction?

A

Lambdoid and Sagittal

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6
Q

What is the Pterion?

A
  • The region where 4 skull bones join
  • The weaker part of the skull
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7
Q

Which bones make up the face?

A

1) Frontal
2) Nasal
3) Zygomatic
4) Maxillae
5) Mandible

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8
Q

Which bones make up the Zygomatic Arch?

A

Zygomatic and Temporal

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9
Q

What is the Supraorbital
foramina?

A

For the nerves that carry sensory information from the forehead

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10
Q

List the 7 Parts, Processes, Forman and Fossa in the Temporal Bone

A

1) Squamous part
2) Petrous part
3) Zygomatic process
4) Mastoid process
5) Styloid process
6) Stylomastoid foramen
7) Mandibular fossa

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11
Q

What is the Squamous part?

A

Flattened part that helps to form vault

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12
Q

What is the Petrous part?

A
  • Dense part, like a rock
  • Contains within it the organs of hearing & balance
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13
Q

What is the Zygomatic process?

A

Helps to form the zygomatic arch

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14
Q

What is the Mastoid process?

A

Protrusion for attachment of sternocleidomastoid

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15
Q

What is the Styloid process for?

A

For the attachment of the muscles and ligaments of the posterior face

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16
Q

What is the Stylomastoid foramen?

A

Hole for facial nerve (CN VII) to pass

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17
Q

What is the Mandibular fossa?

A

The surface to receive the mandible

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18
Q

What is the Pterygoid processes?

A

Provides attachment to some key
muscles of mastication & swallowing

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19
Q

What is the Crista galli for?

A

For the attachment of membranes and meninges that surround the brain

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20
Q

What is the Cribriform plate?

A

Holes for nerves of smell

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21
Q

What is the Incisor fossa?

A

Hollow above incisors on each side

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22
Q

What is the Canine fossa?

A

Hollow above canine teeth

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23
Q

What is the Infraorbital foramen for?

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A

For the infraorbital nerve

24
Q

What is the Maxillary sinus?

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A

Large space within each maxilla

25
What are the 3 parts of the Base of the Skull?
1) Anterior Cranial Fossa 2) Middle Cranial Fossa 3) Posterior Cranial Fossa
26
What are the contributing bones in the Anterior Cranial Fossa?
- Frontal (Orbital plate) - Ethmoid bone (Cribriform plate) - Sphenoid (Body & Lesser wings)
27
What is the Anterior Clinoid process?
Gives **attachment** for **tentorium cerebelli**
28
What is the Foramen Caecum?
Transmits the **Emissary vein**: small vein **carrying blood** **from** the **brain** if open
29
What is the Cribriform Foramina?
For the **nerves (CN I)** of **smell**
30
What does the ACF house?
**Frontal lobes** of the brain
31
What is the most anterior margin in the Middle Cranial Fossa?
Optic groove/canal
32
What does the MCF house?
- **Temporal lobes** of the brain - **Pituitary gland**
33
What are the 3 grooves in the MCF?
- Groove and hiatus for lesser petrosal nerve - Groove and hiatus for greater petrosal nerve - Groove for middle meningeal artery
34
What does the Posterior Cranial Fossa house?
- Brainstem - Cerebellum
35
What are the contributing bones in the PCF?
- Sphenoid bones - Occipital bones - Temporal bones
36
What are the major Foramina in the PCF?
- Foramen magnum - Hypoglossal canal - Jugular foramen - Internal auditory meatus
37
What is the Foramen Magnum for?
- Spinal cord - Vertebral arteries - Spinal accessory nerves
38
What is the Hypoglossal Canal for?
For the Hypoglossal nerve
39
What is the Jugular foramen for?
- Internal jugular vein - CN IX, X and XI
40
What grooves are in the PCF?
- Groove for inferior petrosal sinus - Groove for sigmoid sinus - Groove for transverse sinus
41
How are the grooves in the PCF formed?
- By **venous sinuses** of the brain - These sinuses **drain** into the **internal jugular vein**
42
What are the bones involved in the Paranasal Sinuses?
- Maxillae - Frontal - Ethmoid - Sphenoid
43
What is the function of the Paranasal Sinuses?
To **communicate** with the **nasal cavity** & **lined** by **respiratory mucous membrane**
44
What is the function of the Maxillary Sinus?
- Reduce weight of the skull - Resonate the voice - Warm inspired air
45
Where does the Frontal Sinus drain to?
Middle Meatus
46
What are the 3 folds in the Nasal Cavity
- Superior Concha - Middle Concha - Inferior Concha
47
Which bone is the Superior and Middle Concha a part of?
Ethmoid bone
48
What is under each Concha?
Meatuses
49
Where does the Maxillary Sinus drain to?
Middle Meatus
50
What are the 3 sinuses within the Ethmoid Sinus?
- Anterior ethmoidal sinus - Middle ethmoidal sinus - Posterior ethmoidal sinus
51
Where does the Anterior Ethmoidal Sinus drain?
Middle meatus
52
Where does the Middle Ethmoidal Sinus drain?
Middle meatus
53
Where does the Posterior Ethmoidal Sinus drain?
Superior meatus
54
Where does the Sphenoid Sinus drain to?
Sphenoethmoidal recess
55
Where is the Sphenoethmoidal Recess located?
Above the superior concha
56
What are Motor axons?
Supply skeletal muscles
57
What are autonomic axons?
Supply smooth & cardiac muscles

Anatomy (21 decks)

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