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vasc___carotid_anatomy

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					Carotid Artery

Normal Anatomy
              Carotid Anatomy

Musculature

     • (34) Parotid gland
     • (33) External carotid Art.
     • (35) Sternocleidomastoid
                 Carotid Anatomy

Musculature

     •   (14) External jugular vein
     •   (15) Platysma
     •   (26) Sternocleidomastoid
     •   (27) Trapezius
                        Carotid Anatomy



    Common Carotid Artery

•   Arises from aortic arch
•   LCCA – directly from arch
•   RCCA – from innominate artery
•   Bifurcates at angle of mandible
                    Carotid Anatomy

Common Carotid Artery

          •   (5) Common carotid art.
          •   (6) Brachiocephalic trunk
          •   (17) Left subclavian art.
          •   (16) Vertebral art.
          •   (18) Aortic arch
                   Carotid Anatomy

Common Carotid Artery



          • (5) Common carotid art.
          • (6) Brachiocephalic trunk
          • (17) Left subclavian art.
                                Carotid Anatomy

    External Carotid Artery

•   Arises from CCA bifurcation
•   Medial and anterior to ICA
•   Branches proximally
•   Supplies branches to face and scalp
•   High resistance flow pattern
                     Carotid Anatomy

External Carotid Artery


            • (35) External carotid art.
            • (??) Superficial temporal art.
            • (6) Facial art.
                        Carotid Anatomy

External Carotid Artery


            •   External carotid art.
            •   Superficial temporal art.
            •   Facial art.
            •   Lingual art.
            •   Subclavian art.
            •   Vertebral art.
                               Carotid Anatomy

          Internal Carotid Artery

•   Arises from CCA bifurcation
•   Posterior and lateral to ECA
•   Bulbous proximal segment
•   Intracranial branching
•   Supplies anterior and mid-brain
•   Low resistance flow pattern
                    Carotid Anatomy

Internal Carotid Artery


            • (28) Brachiocephalic trunk
            • Subclavian art.
            • Common carotid art.
            • Internal carotid art.
              (cervical)
                        Carotid Anatomy

Internal Carotid Artery


            •   Brachiocephalic trunk
            •   Subclavian art.
            •   Common carotid art.
            •   Internal carotid art. (cervical)
            •   Internal carotid art. (cavernous)
                                      Carotid Anatomy

                Vertebral Artery

•   Arises from subclavian art.
•   Enters foraminal canal at C6
•   Asymmetrical size L > R
•   Fuses in posterior fossa to form basilar art.
•   Supplies posterior brain structures
•   Low resistance flow
                   Carotid Anatomy

Vertebral Artery


        • Brachiocephalic trunk
        • Subclavian art.
        • Vertebral art.
        • Basilar art.
                                    Carotid Anatomy

                 Circle of Willis
• Major collateral pathway of brain
• ICA
   – Anterior cerebral art.
   – Middle cerebral art
• Basilar art.
   – Posterior cerebral art.
• Communications:
   – Anterior communicating art.
   – Posterior communicating art.
                    Carotid Anatomy

Circle of Willis

         •   Middle cerebral art.
         •   Basilar art.
         •   Vertebral art.
         •   Anterior cerebral art.
         •   Internal carotid art.
         •   PCa
         •   Posterior cerebral art.
         •   ACa
                    Carotid Anatomy

Circle of Willis

         •   Middle cerebral art.
         •   Basilar art.
         •   Vertebral art.
         •   Anterior cerebral art.
         •   Internal carotid art.
         •   PCa
         •   Posterior cerebral art.
         •   ACa
    Exercises




Here we go…
Worksheet 1

A_____________________________    A Left Subclavian art,
B_____________________________    B Left vertebral art.
C_____________________________    C Common carotid art.
D_____________________________    D Basilar art.
E_____________________________    E Ophthalmic art.
F_____________________________    F Posterior communicating art.
G_____________________________    G Anterior cerebral art.
H_____________________________    H Anterior communicating art.
I______________________________   I Middle cerebral art.
J______________________________   J Circle of Willis
K______________________________   K Posterior cerebral art.
L______________________________   L Internal carotid art.
M_____________________________    M External carotid art.
N______________________________   N Right vertebral art.
O______________________________   O Innominate art.
P______________________________   P Aortic arch
Q______________________________   Q Left ventricle
Worksheet 2




 A_____________________________   A Common carotid art
 B_____________________________   B External carotid art.
 C_____________________________   C Internal carotid art
 D_____________________________   D Ophthalmic art.
 E_____________________________   E Superficial temporal art.
 F_____________________________   F Transverse facial art.
 G_____________________________   G Maxillary art.
 H_____________________________   H Facial art.
Exercises




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