Head & Neck Anatomy: Veins Of The Head & Neck Flashcards
Veins carry deoxygenated blood to the
Lungs
What are often absent in the veins of the head and neck region which allows two-way flor of blood that can spread facial/dental infections
Valves
Compared to arteries, veins are ___ numerous, __ in location and ___ free
More; vary; anastomose
Anastomosis means
Communicating with each other
Paths and names of the vein generally follow the
Arteries
What vein is on the right and left side of the neck
Brachiocephalic vein
What runs superficial to the sternocleidomastoid. Drains the maxillary vein, superficial temporal, posterior auricular, transverse cervical, suprascapular and anterior jugular veins
External jugular
Deeper of the two jugular veins. Formed by anastomosis of blood from the sigmoid sinus and the common facial vein. Runs with the common carotid artery. Drains the head, brain, face and neck. Passes through the jugular foramen
Internal jugular
Located behind the eyes, towards the middle of the skill. Anastomosis with the pterygoid plexus of veins, ophthalmic vein and facial vein
Cavernous sinus
Plexus refers to a
Large network of blood vessels
The pterygoid plexus of veins collects
Small blood vessels
Pterygoid plexus of veins is located behind the molars and nose towards the middle of the skull. What does its flexibility do?
Protects the maxillary arteries from being compressed during mastication
Improper administration of the PSA block can injure the plexus and cause a
Hematoma
Infection in the plexus can spread to the
Cavernous sinus
*this can be very dangerous
What vein collects blood from the middle meningeal, posterior superior alveolar and inferior alveolar veins
Maxillary vein
