Vasculature of Head and Neck

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Vasculature of Head and Neck
2011-09-24 16:44:53
Vasculature Head Neck

Med School - Vasculature of Head and Neck
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  1. Name the branches of the arch of aorta from R to L
    • Branchiocephalic. Divides into R CC and R SC
    • Left common carotid
    • Left Subclavian
  2. What are the parts of the subclavian artery defined by?
    Relationship to the anterior scalene muscle
  3. What arteries are located in the medial part of the subclavian arteries? What are their branches?
    • Vertebral Artery
    • Thyrocervical Artery: Branches into transverse cervical, suprascupular and inferior thyroid artery
    • Internal Thoracic Artery: Gives off anterior intercostal branches to ribs 1-6
  4. How does the vertebral artery enter the head?
    Foramen Magnum
  5. How does the internal thoracic artery travel?
    Parallel to the sternum
  6. What artery arises from the posterior part of the subclavian artery?
    Costocervical trunk: Deep cervical artery
  7. What does the deep cervical artery supply?
    Deep neck muscles and fascia
  8. Where does the common carotid artery arise on the R and L side?
    • R side: Branch of brachiocephalic trunk
    • L Side: Arch of aorta
  9. Where does the common carotid split?
    Superior border of the thyroid cartilage
  10. Name the branches of the external carotid artery?
    • Superior Thyroid
    • Lingual
    • Facial
    • Ascending Pharyngeal
    • Occipital
    • Posterior Auricalar
    • Maxillary
    • Superficial Temporal
  11. Describe the path of the lingual artery:
    • Branches near tip of greater horn of lyoid
    • Disappears under hyoglossus muscle
  12. Describe path of facial nerve:
    • Deep to posterior belly of digastic and stylohyoid muscles
    • Curves over mandible at anterior edge of masseter
  13. What does the ascending pharyngeal artery supply?
    Neck and scalp
  14. What does the posterior auricular artery supply?
    • Parotid gland
    • Adjacent muscles
    • Adjacent scalp
  15. Where does the maxillary artery go?
    Infratemporal fossa
  16. How does the internal carotid enter the head and what is it joined by upon entering
    • Enters through: Carotid canal
    • Joined by: Internal carotid plexus
  17. What is the circle of willis made of anteriorly and posteriorly?
    • Anteriorly: Internal carotid
    • Posteriorly: Vertebral arteries
  18. What is the ophthalmic artery derived from?
    Internal carotid after passing through the cavernous sinus
  19. What are the 2 layers of the dural mater?
    • Outer: Periosteal Layer
    • Inner: Meningeal Layer
  20. Where is the CSF in the brain reabsorbed?
    • Superior Sagittal Sinus
    • Through arachnoid granulations
  21. What vein does the straight sinus receive?
    Great cerebral sinus
  22. What sinuses join at the confluens of sinuses?
    • Straight
    • Superior Sagittal
    • Occipital
  23. What sinus is found on the lesser of the sphenoid?
    Sphenoparietal Sinus
  24. What sinuses are found on the petrous process?
    • Superiour petrosal sinus
    • Inferior petrosal sinus
  25. What does the basilar sinus connect?
    • Inferior petrosal and cavernous sinus
    • Also communicates with vertebral venous plexus
  26. Where does the vertebral venous plexus come from?
    Foramen magnum
  27. What is the internal jugular vein made from and how does it exit the head?
    • Sigmoidal sinus
    • Exits through the jugular foramen
  28. Where is the brachiocephalic vein made?
    When the subclavian vein joins the internal jugular vein
  29. Where is the external jugular vein located in the neck?
    Deep to platysma but superficial to the sternocleidomastoid
  30. What makes up the external jugular vein?
    • Retromandibular Vein
    • Posterior Auricular Vein
  31. When the brachiocephalic veins converge, what do they form?
    Superior vena cava
  32. What artery is injured often during a cranial epidural hemorrhage?
    Middle meningeal artery
  33. What can cause a subarachnoid hemmorrhage?
    If the circle of willis has an aneurysm
  34. What can be caused by an aneurysm of internal carotid artery within the cavernous sinus?
    • Altered eye movements
    • Disturbances in V1 and V2