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PT612 > Brain! > Flashcards

Brain! Flashcards

1
Q

The Cerebrum is the most

A

largest and rostral part of the brain

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2
Q

divided into left and right hemispheres by the

A

longitudinal cerebral fissure

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3
Q

Sulci divvies the two hemisphere into

A

lobes

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4
Q

fissures further divide the hemispheres into

A

gyri

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5
Q

gyro are the

A

neuro tissue between the fissures

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6
Q

PREcentral gyrus is the

A

primary MOTOR cortex

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7
Q

POSTcentral gyrus is the

A

primary somatic SENSORY cortex

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8
Q

Forebrain is the

A

telecephalon and diencephalon together

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9
Q

Telencephalon (cerebrum) is the ________ and fills _______

A

largest portion of the brain

anterior & middle cranial fossa

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10
Q

connects the two hemispheres

A

corpus callosum

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11
Q

Diencephalon is the

A

central core of brain

thalamus & hypothalamus

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12
Q

______ CN outgrowth of forebrain

A

CN I & II

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13
Q

Brainstem is the

A

midbrain
pons
medulla oblongata

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14
Q

______ CN outgrowth of brainstem

A

CN III -XII

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15
Q

Cerebellum fills

A

posterior cranial fossa

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16
Q

CSF provides

A

nutrients to the brain tissue & spinal cord

cushions the brain

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17
Q

CSF is secreted by

A

choroid plexus located in the four ventricles

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18
Q

Ventricles develop from

A

the central canal of the neural tube

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19
Q

right & left _______ are located in the _________

A

lateral ventricles

central hemispheres

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20
Q

3rd and 4th ventricles are located

A

in the midline of brain

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21
Q

3rd located

A

diencephalon

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22
Q

4th located

A

pons

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23
Q

CSF flows into

A

subarachnoid space surrounding the brain and spinal cord

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24
Q

CSF is absorbed into the _______ via the ________

A

venous sinuses via the arachnoid granulations

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25
Q

arachnoid granulations project

A

into the superior sagittal sinus

26
Q

cranial meninges

A

encloses and protects the brain

27
Q

3 layers of meninges

A
  1. dura
  2. arachnoid
  3. pia
28
Q

tough outer covering of the brain and spinal cord

A

dura matter

29
Q

dura matter lines

A

the inner surface of cranium

30
Q

sensory innervation of the dura is primarily from the

A

3 division of the Trigemnial N. V

31
Q

blood supply of dura matter is _______

primarily _______

A

meningeal aa.

middle meningeal a

32
Q

Two layers of Dura

A

external periosteal layer

inner meningeal layer

33
Q

external periosteal layer is the covering

A

of the inner surface of the bone

34
Q

inner meningeal layer forms _________ which provide

A

dural infoldings

support and divide brain into regions

35
Q

dura venous sinuses

A

spaces between 2 layers of dura

36
Q

Types of Folds

A

Falx Cerebri
Falx Cerebelli
Tentorium Cerebelli
Diaphragm Sellar

37
Q

Falx Cerebri divides

A

the right & left cerebral hemispheres

38
Q

Falx Cerebelli partially

A

divides the 2 halves of the cerebellum

39
Q

Tentorium Cerebelli covers

A

the cerebellum

separating it from the occipital lobes of cerebrum

40
Q

diaphragm Sellar forms the

A

roof over hypophysial fossa and pituitary gland

41
Q

diaphragm Sellar is suspended from

A

clinoid processes of sphenoid bone

42
Q

Dural Venous Sinuses are

A

endothelial-lined spaces

43
Q

Dural Venous Sinuses form the

A

venous drainage system of the brain and cranial cavity

44
Q

Major Dural Sinuses

A 
Superior Sagittal
Inferior Sagittal
Straight
Transverse
Sigmoid
Cavernous
Superior & Inferior Petrosal
45
Q

Straight Sinus is the merging of

A

inferior sagittal sinus & great cerebral v.

46
Q

Sigmoid Sinus becomes

A

Internal jugular v. as it exits the skull at jugular foramen

47
Q

Cavernous Sinus is on either side of

A

sella turcia

48
Q

Superior and Inferior petrosal sinus connects the

A

cavernous sinus and sigmoid sinus

49
Q

Superior Ophthamlic V. becomes _______ that becomes _______

A

Ophthalmic v.

Cavernous sinus

50
Q

Contents of the Cavernous Sinus

A

Internal carotid a.

CN VI

51
Q

located in the wall of the cavernous sinus

A

CN III
CN IV
V1
V2

52
Q

infections reaching the cavernous sinus may damage

A

carotid a
CN
and possible spread to other sinus

53
Q

Most important connections are between

A

Ophthalmic vv & cavernous Sinus
&
pterygoid plexus & cavernous sinus

54
Q

Arachnoid layer adheres to

A

inner surface of dura

55
Q

Subarachnoid space is between

A

arachnoid & pia bridged with trabeculae

56
Q

Subarachnoid space is filled with

A

CSF

57
Q

Subarachnoid space is the location of

A

cerebral aa. & vv.

58
Q

Arachnoid granulations project from subarachnoid space into

A

Superior Sagittal Sinus

59
Q

Superior Sagittal Sinus is where

A

CSF is absorbed in to the venous system

60
Q

Pia layer is the most ______ and follows

A

inner layer

every fold of the brain

PT612 (9 decks)

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