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CVM710: Anatomy > exam 4: Meniges (31) > Flashcards

exam 4: Meniges (31) Flashcards

1
Q

Three membranes that line the skull and vertebral canal and enclose the brain and spinal cord

A

Meninges

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2
Q

label 1-3

A
  1. Dura mater
  2. Arachnoid
  3. Pia mater
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3
Q

Arachnoid + Pia mater=

A

Leptomeniges

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4
Q

Cranial dura fused to the periosteum

is there an epidural space within skull

A

NO

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5
Q

Within the vertebral canal. the dura mater and periosteum are separated leaving a __________________

A

fat filled epidural space (6) just deep to the yellow ligament

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6
Q

Dura mater: Specialized Folds
Falx cerebri

where does this extend into?

A

longitudinal cerebral fissure (between cerebral hemispheres)

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7
Q

Dura mater: Specialized Folds
Falx cerebri

what does this contain

A

dorsal sagittal sinus (collects blood)

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8
Q

identify what the yellow arrow is pointing to

A

Longitudinal cerebral fissure

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9
Q

identify 1 and 2

A
  1. Falx cerebri
    2.Corpus callosum
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10
Q

identify

A

Dura mater

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11
Q

identify

A

Falx cerebri

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12
Q

Dura mater: Specialized Folds
Tentorium cerebelli (dural and osseous parts)

where does this extend to

A

Extend into transverse cerebral fissure (between cerebral hemisphere and cerebellus)

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13
Q

Identify

A

Tentorium cerebelli

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14
Q

identify

A

Transverse cerebral fissure

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15
Q

identify

A
  1. Dorsal sagittal sinus
  2. Tentorial process-Tentorium cerebelli osseum
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16
Q

identify 1 and 2

A
  1. Falx cerebri
  2. Tentorium cerebelli
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17
Q

what lines the deep surface of the dura mater

A

Arachnoid

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18
Q

what part of the arachnoid contains the cerebrospinal fluid (CSF)

A

Arachnoid trabeculae transverse subarachnoid space

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19
Q

what is intimately attaches to the surface of the CNS

A

pia mater

20
Q

where does the pia mater extend into

A

depths of sulci, fissures, crevices

21
Q

identify

A

cerebellomedullary cistern (cisterna magna)

22
Q

identify

A

Lumbar cistern

23
Q

What is Myelography

A

injection of contrast into subarachnoid space

24
Q

Thickened longitudinal cord of pia on lateral margin of the spinal which segmentally attaches to the dura and arachnoid and thus suspends the spinal cord

A

denticulate ligaments

25
Q

what does the denticulate ligaments attach

A

segmentally attaches to the dura and arachnoid and thus suspends the spinal cord

26
Q

narrow cord of meninges that attaches conus medularis to the caudal vertebrae

A

Filum terminale

27
Q

CSF production:
Choricoid plexus

this is a compact mass of what 3 things

A

pia, capillaries, and ependymal epithelium

28
Q

what does the Choricoid plexus produce

A

CSF by secretion and ultrafiltration from blood

29
Q

is the choroid plexus present in

A

present within each ventricle (lateral, 3rd and 4th)

30
Q

identify 1 and 2

A
  1. Choroid plexus
    2.Ventricles
31
Q

identify 1 and 2

A
  1. Subarachnoid space
  2. Central canal of spinal cord
32
Q

identify 1

A

Mesencephalic aqueduc

33
Q

how does CSF flow starting at the lateral ventricle

A
34
Q

how does CSF flow after it reaches the lateral apertures

A
35
Q

what are the green arrows representing

A

CSF drainage into the vein system

36
Q

identify 1 and 2

A
  1. Arachnoid villi
  2. Falx cerebri
37
Q

what is this showing?
what is the cause?

A

Hydrocephalus; high pressure of CSF in the subarachnoid space due to problems with circulation

38
Q

what is referred to as the pachymeninx

A

dura mater

39
Q

what does the Corpus callosum do

A

fibers that communicate the right and left hemispheres

40
Q

identify

A

Tentorium cerebelli

41
Q

The subarachnoid space has enlargements that are also called ________________

what is the purpose of these enlargements

A

cisterns; collection of CSF

42
Q

There is communication between the 4th ventricle and the _____________ space, allowing for it to be filled with CSF

A

subarachnoid

43
Q

the 4th ventricle lives in what 2 areas

A

pons and medulla oblongata

44
Q

T/F we are producing CSF all the time

A

true

45
Q

what are arachnoid villi

A

formations that project into the dura mater sinus that filter CSF into the venous system

46
Q

dura mater sinus joins with ____ and blood gets drains

A

veins

47
Q

why does hydrocephalous occur due to increased CSF

A

the bones of the skull are not formed together so the CSF will flow out and around= creating the enlarged head

CVM710: Anatomy (51 decks)

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