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14 Cards in this Set
- Front
- Back
Segments of Internal Carotid Artery |
C1. Cervical Segment C2. Petrous Segment C3. Lacerum Segment- Above Foramen Lacerum C4. Cavernous Segment- Two Vertical, OneHoriz C5. Clinoid Segment- Courses Dural Reflection C6. Ophthalmic Segment-Ophthalmic/Sup Hyph C7. Communicating Segment Pcom, Ant Ch Art |
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Anterior Choroidal Artery- with Blush- Distal To Post Com Art -Medial Temporal Lobe -Optic Tract Lateral Geniculate body Posterior Limb of IC Choroid Plexus |
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Anterior Cerebral Artery -A1 Segment Medial Lenticulostriate -----Recurrent Artery Huebner A1, ACoA, A2 -A2 Segment
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-A3 Segment Pericallosal Artery Orbitofrontal Frontopolar Callosomarginal Artery |
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Azygous ACA Single A2 Segment 0.2-3.7% Population Short or Long Trunk -Complete azygous ACA a/w Holoprosenecephaly |
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Middle Cerebral Artery -M1 Horizontal -M2 Insular -M3 Opercular -M4 Cortical |
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M4 Segment -Cortical Branches --Anterior --Central --Posterior |
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Vertebral Segments 4 Segments -Extraosseous V1 -Foraminal V2 -Extraspinal V3 -Intradural V4 |
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Branches of V4 PICA -Around Medulla and Tonsils (Tonsillar Loop) -Inferior Vermian Artery and Hemispheric Branches to Posterior Inferior Surface of Cerebellum -May Arise From Common AICA-PICA Trunk |
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AICA -Crosses Roots of CN VI, VII, VIII -Approaches or May Give Rise To Internal Auditory Artery -Loops Over Flocculus (Floccular Loop) Yellow Arrow -Supply Anteroinferior surface of Cerebellum |
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Posterior Cerebral Arteries PCA 4 Segments -P1 Pre-communicating or Mesencephalic -P2 Ambient -P3 Quadrigeminal -P4 Calcarine |
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P4 Calcarine -1. Medial Occipital -Parietal Occipital Artery (RED) -Calcarine Artery (Visual Cortex) (Yellow)
-2. Lateral Occipital Artery -Temporal Branches - Inferior Aspect of Temporal Lobe
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Persistent Carotid-Basilar Connections -Trigeminal (Most Common) Common Carotid To Basilar {Increased Incidence of aneurysm} -Hypoglossal Artery -Otic Artery -Proatlantal Intersegmental |
