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Human Anatomy > Unit 3_The Cranial Meninges & Circulation > Flashcards

Unit 3_The Cranial Meninges & Circulation Flashcards

1
Q

What makes up the cranial meninges that are continuous with the spinal meninges and cover the brain?

A
  1. Scalp
  2. Skull
  3. Periosteal dura mater
  4. Meningeal dura mater
  5. Arachnoid mater
  6. Subarachnoid space
  7. Pia mater
  8. Cerebral cortex
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2
Q

What meninges protect from mechanical injury?

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

Where does CSF flow in the cranial meninges?

A

Subarachnoid space

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4
Q

Where is there potential space in the cranial meninges?

A

Subdural space

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5
Q

What is the same tissue as the dura mater, is a tough/canvas-like sheet, wrapping around the outside of the brain and in between the two hemispheres of the brain on the sagittal plane? It also lies within the Median Longitudinal Fissure and attaches rostrally to the Crista Galli?

A

Falx cerebri

“Fo-hawk”

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6
Q

What structure of the dura mater contains the occipital sinus and lies in the sagittal plane?

A

Falx cerebelli

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7
Q

What structure of the dura mater covers the pituitary gland from bumping into the skull?

A

Diaphragma Sellae

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8
Q

What structure of the dura mater covers the Posterior Cranial Fossa and Cerebellum and includes the Tentorial Notch? It also separates the cerebrum from the cerebellum.

A

Tentorium Cerebelli

“Tent”

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9
Q

Where does CSF start in the brain?

A

R/L Lateral Ventricles via the choroid plexuses

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10
Q

Where does the CSF flow through to reach the third ventricle between the 2 hemispheres of the Thalamus in the brain?

A

Interventricular Foramen (of Monroe)

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11
Q

Where does the CSF flow through the third ventricle to reach the fourth ventricle in the brain?

A

The Cerebral Aqueduct (of Sylvius)

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12
Q

Where does the CSF exit from the ventricle system to bathe the entire CNS?

A

2 Lateral Apertures (foramen of Luschka)

Medial aperture (foramen of Magendie)

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13
Q

Where does the CSF end in the brain to get reabsorbed back into the blood?

A

Arachnoid granulations

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14
Q

What sinus is embedded in the dura mater and falx cerebri?

A

Superior sagittal sinus

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15
Q

What sinus is below the superior sagittal sinus?

A

Inferior sagittal sinus

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16
Q

What sinuses come around the back and occipital lobe?

A

Transverse sinuses

17
Q

What sinus is in between the Transverse sinuses and the Inferior sagittal and Superior sagittal sinuses?

A

Straight sinus

18
Q

What sinus is curvy and wraps around the venous drainage in the brain and takes the blood back to the heart via the jugular vein to the vena cava?

A

Sigmoid sinuses

19
Q

What sinuses are between the Cavernous sinuses and the Sigmoid sinuses?

A

Superior Petrosal sinuses

20
Q

Where do all of the sinuses come together in the cerebrum?

A

Confluence of sinuses

21
Q

What vein comes off of the Straight sinus?

A

Great cerebral vein (of Galen)

22
Q

What sinus makes up a venous plexus?

A

Basilar sinus

23
Q

What sinuses wrap around the Temporal lobe?

A

Sphenoparietal sinuses

24
Q

What artery is common for artherosclerosis to occur which can result in a stroke?

A

Common carotid artery

25
Q

Where does the blood enter from the heart to supply the brain?

A

Brachiocephalic Trunk

26
Q

After the blood passes the carotid artery, where does the blood branch off into?

A

Internal carotid artery

External carotid artery

27
Q

What makes up the Circle of Willis?

A

2 Vertebral Arteries –> Basilar Artery

2 Internal Carotid Arteries –>

Arteries leaving to outside of the brain:
1. Anterior Cerebral Arteries (A1, A2)
2. Middle Cerebral Arteries
3. Posterior Cerebral Arteries (P1, P2)

28
Q

Where are strokes most common than any other artery?

A

Middle cerebral artery

*Due to clotting from carotid artery

29
Q

What area of the brain is perfused by the middle cerebral artery?

A

Outside the brain; under the Temporal lobe (Temporal Pole)

*Motor/sensory

30
Q

What area of the brain is perfused by the anterior cerebral artery?

A

Between the two hemispheres (Frontal Pole)

31
Q

What area of the brain is perfused by the posterior cerebral artery?

A

Between the two hemispheres; inferior portion of the brain (Occipital Pole)

32
Q

What area of the brain includes the primary visual cortex?

A

Occipital Lobe; Posterior cerebral artery

33
Q

What area of the brain includes primary motor cortex, motor speech (Broca’s area), somatosensory cortex and sensory speech (Wernicke area)?

A

Temporal Lobe; Middle cerebral artery

34
Q

What area of the brain includes prefrontal cortex?

A

Frontal Lobe; Anterior cerebral artery

Human Anatomy (31 decks)

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