Head and Neck Flashcards
what is the view to see the frontal sinuses
caldwell view
what view enhances the mandible and condyles ?
towne views
what kind of view requires the patient to put their head back
waters view
what view is used to look for zygomatic fractures
waters view
what shape does the lower orbital limb form
elephant
what was it called when there was a broken elephant trunk
zygomatic fracture
in the elephant zygoma makes the…
orbits make the
zygoma- trunk
orbits- ears
what is a blow out fracture
isolated localized fracture of the orbital floor
what is the first line of defense for coronal CT?
plain films
what is the 2nd line of defense for Coronal
CT scan
what is known as the jug-handles view
submentovertex (SMV)
what is used to look at the mouth
panorex
orthopantogram or OPG
what does the orthopantogram (panorex) show
shows the entire mandible and maxillary arch and teeth
what view do you use for palate
axial view
how many ligaments hold the neck together
5
what must plain films include
- base of the skull to T1
- anterior and posterior edges of vertebral bodies
- posterior edges of the facettes must line up
what view is important for trauma
AP view
what needs to be in the center of the AP view
posterior spinal processes
what do the vertebral bodies need in a film
-they need to have distance between each other
- and they need to have perserved height
-
what happens when there isnt a preserved height between the vertebral bodies
things can get squished there like nerves
how many more injuries do you pick up when you use Plain film and CT scan
20% more injuries
what is good to see things affecting soft tissues
plain film
what can Ludwig’s Angina come from
any abscess that spreads under the muscle of the tongue and travels to the side of the neck and can occlude the airway
where is the airway below
epiglottis
what should you always make sure of before giving a patient paralytic agents
that there is no swelling of the epiglottis
what is important to see contour of the airway in comparison to soft tissue
plain films
what are the 5 zones of the neck divided by
strap muscles
what do the strap muscles attach to
the hyoid bone and they look like straps
what are the 3 anterior triangles
- digastric ( suprahyoid neck)
- carotid triangle ( Digastic- omohyoid-SCM)
- muscular triangle (omohyoid-SCM- MIdline)
what is the carotid triangle made of
digastric, omohyoid, and SCM
what is the muscular triangle made of
omohyoid, SCM, Midline
what s the triangle at the suprahyoid neck
digastric triangle
what are the 2 posterior triangles
occipital triangle
subclavian triangle
what does the occipital triangle have
SCM
Omohyoid
Trapezius
what does the subclavian triangle have
Omohyid
SCM
Clavicle
what direction do the two digastrics go
north and south
a lot of lymph nodes go through which triangle
carotid triangle
what triangle in the neck is the most important
carotid tringle
External and internal Carotid A.
Deep cervical lymph nodes
Vagus Nerve
Submandibular Gland
Submandibular lymph nodes
Facial A. and vein
HYpoglossal nerve go through what triangle e
digastric