Lab 2 Structures Flashcards

1
Q

falx cerebri

A
  • dural reflection that provides support between right/left cerebral hemispheres
  • runs along sup/post aspects of skull
  • contains superior sagittal sinus, inferior sagittal sinus, straight sinus
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2
Q

tentorium cerebelli

A
  • dural reflection positioned like a roof over posterior fossa
  • supports cerebral hemispheres from below (lies above cerebellum)
  • posterior attachment → groove for transverse sinus
  • tentorial notch
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3
Q

tentorial notch

A

opening in tentorium cerebelli that allows for posterior fossa brainstem to freely pass through dural reflection into posterior cranial fossa

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4
Q

falx cerebelli

A

dural reflection that lies between/supports smaller cerebellar hemispheres

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5
Q

superior sagittal sinus → ?

A

superior sagittal sinus → right transverse sinus

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6
Q

inferior sagittal sinus → ?

A

inferior sagittal sinus → straight sinus

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7
Q

straight sinus → ?

A

straight sinus → left transverse sinus

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8
Q

transverse sinuses → ?

A

path from either transverse sinus → sigmoid sinus

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9
Q

sigmoid sinuses → ?

A

sigmoid sinus → jugular foramen (internal jugular vein)

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10
Q

cavernous sinus → ?

A

cavernous sinus → jugular foramen

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11
Q

where is the ventricular system located?

A

within cerebral hemispheres and brainstem

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12
Q

what does the ventricular system do?

A
  • floats/bathes brain
  • provides nutrients to brain
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13
Q

what flows through the ventricular system?

A

cerebrospinal fluid (CSF)

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14
Q

what flows through the sinus system?

A

deoxygenated blood

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15
Q

lateral ventricles associated brain region

A

cerebral hemispheres

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16
Q

third ventricle associated brain region

A
  • thalamus
  • hypothalamus
17
Q

cerebral aqueduct associated brain region

A

midbrain

18
Q

fourth ventricle associated brain region

A
  • pons
  • cerebellum
  • medulla
19
Q

subdural hematoma

A
  • between dura mater and arachnoid mater (subdural space)
  • most common hematoma because space has lots of structures that can sheer/leak blood
20
Q

epidural hematoma

A
  • most often caused by middle meningeal artery lesion
  • takes awhile for Sx to show since artery is small
21
Q

subarachnoid hematoma

A

“the worst head of my life”