Head and Neck anatomy
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clot that 'escapes' and floats around the vessels and blocks blood flow. causes heart attacks and strokes
small amounts of blood escaping into surrounding tissue. bruising
communicating channels between blood vessels (internal and external jugular veins)
cushions the maxillary artery during mastication. It can drain or fill to reduce the pressure. You can hit it when giving local anesthetic, and it ieasy to spread infection to the brain from here
large collection of blood vessels
clot that stays put
blood filled space between 2 layers of tissue
bacteria in the blood that can spread fast through anastomosis
large amount of blood escapes the vessel. bleeding
a vascular lesion consisting of plaques of chlesterol build up on the walls of arteries that narrow or block it
innervates muscles of facial expression, passes through the parotid gland, but does NOT innervat it.
facial nerve has a branch called the_____________ that innervates the sublingual and submandibular salivary glands
nervous system disorder that is usually caused by a stroke or injury to the facial nerve. You can injur the facial nerve during the IA injection if administored incorrecty, but it is usually only transient
nervous system disorder defined as idiopathic facial paralysis, it has an abrupt onset, and can be permanent
nervous system disorder that presesnts excrutiating short term pain caused by touching trigger zones which vary, but can include areas around the eye and ala of the nose. Idiopathic, and treated by killing the nerve
trigeminal neuralgia (tric doubureux)
big clump of branches of blood vessels that go to the brain, keeps you alive if there's a stroke because it supplies and gives many different pathways in the brain
circle of willis
Which nerve may be bifid and seen on radiographs?
inferior alveolar nerve
nerve just distal of 3rd molars and can be endangered during extractions
nerve that can cross over to the other side of the mandible and make anesthesia difficult to achieve
What are 3 purposes of sinuse?
- lessen weight of skull
- filter and humidify air we breath
- acts as a 'crumple zone'
Sinuses have a/an_________ lining
spaces within the frontal bone
spaces (deeper) within the ethmoid bone
spaces wthin the sphenoid
spaces within the maxilla
What are the 4 different sinuses?
the act of lifting the sinus by dding more bone underneath
How is a sinus lift achieved? And what is it needed for?
- by adding more bone underneath it
- to prepare fr implant placement
inflammation of the sinus
What can be mistaken for a tooth ache?
sinusitis if the roots of maxillary molars go into the maxillary sinus
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