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Anatomy unit 4 > Scull, Meninges, Gross brain > Flashcards

Scull, Meninges, Gross brain Flashcards

1
Q

What are the 3 parts of the cranial fossae

A

Anterior, Middle, Posterior

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2
Q

What seperates the anterior and middle cranial fossae

A

spehnoidal crest

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3
Q

What seperates the middle and posterior cranial fossa

A

superior border of petrous part of temporal bone

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4
Q

Anterior cranial fossa is formed by which bones

A

Frontal, Ethmoid, Sphenoid

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5
Q

Which lobe of the brain does the anterior cranial fossa hold

A

frontal lobes

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6
Q

Which bones make up the middle cranial fossa

A

Sphenoid, parietal, temporal (petrous)

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7
Q

What part of the brain does the middle cranial fossa hold

A

temporal lobes

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8
Q

Which fossa does the temporal lobe sit in

A

middle

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9
Q

Which fossa does the frontal lobe sit in

A

anterior cranial fossa

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10
Q

Which bones make up the posterior cranial fossa

A

parietal, temporal, occipital

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11
Q

Which parts of the brain does the posterior cranial fossa hold

A

cerebellum and brainstem

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12
Q

Which fossa do the cerebellum and brainstem sit in

A

posterior cranial fossa

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13
Q

Which parts of the brain sit on the cranial fossa

A

Frontal lobes- Anterior fossa
Temporal lobes- middle fossa
Cerebellum and brainstem- Posterior fossa

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14
Q

What does dura mater split into medially

A

Periosteal dura (superficially) and meningeal dura (deeper)

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15
Q

What creates the venous sinus

A

Dura mater- creates tunnel for flow of CSF between Periosteal dura and meningeal dura

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16
Q

Where is CSF created

A

in ventricles

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17
Q

Where do vessels travel in brain

A

Between Arachnoid and pia mater

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18
Q

Which carotid goes into the brain

A

Internal carotid (external carotid provides blood to face, meninges, and scalp)

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19
Q

Which carotid supplies the face, meninges, and scalp

A

External carotid

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20
Q

What are the terminal branches of the external carotid artery

A

Maxillary artery and superficial temporal artery

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21
Q

Branches of trigeminal nerve

A

Opthalmic, Maxillary, Mandibular

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22
Q

If you are looking at veins, which layer are you in?

A

Arachnoid mater

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23
Q

If you see gyri and sulci, which layer of the brain are you in (no veins)

A

pia mater

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24
Q

Which layers is subdural hematoma between

A

Dura mater and arachnoid mater (bridging veins cause it)

25
Q

If the middle meningeal artery ruptures what does this cause

A

epidural hematoma

26
Q

What are the dural folds

A
  1. Falx cerebri
  2. Falx cerebelli
  3. Tentorium cerebelli
  4. Diaphragma sellae
27
Q

What does the falx cerebri seperate

A

R and L hemispheres of brain

28
Q

What does the falx cerebelli seperate

A

divides the cerebellum

29
Q

Which area is associated with the pituiatary gland

A

diaphragma sellae

30
Q

What do the superior saggital and inferior saggital sinuses form

A

Straight sinus at the confluence of sinuses

31
Q

What veins drain into the confluence of sinuses

A

Straight sinus (made of superior sagittal and inferior sagittal sinus), great cerebral vein (from deep in the brain) and Transverse sinus

32
Q

What does the inferior sagittal sinus connect with to make straight sinus

A

Great cerebral vein –>Straight sinus

33
Q

Which area is the root of infection because of its drainage of the face and scalp

A

Cavernous sinuses

34
Q

Which fossa does pituitary gland sit in

A

hypophysial fossa

35
Q

What do sinuses secrete

36
Q

What connects lateral and third ventricles

A

interventricular foramen

37
Q

What connects the third ventricle to fourth ventricle

A

the aqueduct of midbrain

38
Q

Which ventricle is associated with the cerebellum

A

4th ventricle
Anterior to cerebellum between brainstem and cerebellum

39
Q

Which ventricle is between R and L hemispheres

A

Third and 4th are on the midline descending to central canal

40
Q

What creates CSF and where is it

A

Choroid plexus. Sits in Lateral vcentricle and 3rd ventricle (a bit of it is also in 4th vcentricle)

41
Q

What is the frontal lobe responsible for

A

Motor and executive function

42
Q

What is the parietal lobe respomsible for

A

Sensory information and spatial awareness

43
Q

What is the temporal lobe responsible for

A

Auditory, speech, memory

44
Q

What is the occipital lobe responsible for

A

Visual processing

45
Q

What is the cerebellum responsible for

A

Fine motor coordination, balance

46
Q

If you have a deficit in sensory information and spatial awareness which part of your brain is dysfunctioning

A

parietal lobe

47
Q

If you have a deficit in auditation, speech, and memory, which part of your brain is dysfunctioning

A

temporal lobe

48
Q

What is the groove inbetween 2 gyri called

49
Q

What structures seperate different parts of the brain

50
Q

What seperates frontal lobe to parietal lobe

A

Central sulcus

51
Q

What is the precentral gyrus responsible for

52
Q

What is the postcentral gyrus responsible for

A

sensory information

53
Q

What seperates the frontal and parietal lobes from temporal lobe

A

lateral fissure

54
Q

What seperates occipital lobe and temporal lobe from cerebellum

A

Transverse fissure

55
Q

What seperates the R and L hemispheres of the brain

A

Longitudinal fissure

56
Q

What runs from longitudinal fissure to lateral fissure

A

The Central sulcus (seperates frontal to parietal lobe)

57
Q

What seperates parietal and occipital lobes

A

parieto-occipital sulcus

58
Q

What sit inbetween R and L thalamus

A

3rd ventricle

Anatomy unit 4 (5 decks)

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