Lec 2 Back osteology Flashcards
What is a sesamoid bone?
embedded inside tendon or ligament
Cervical vertebrae unique features
Cervical vertebrae unique features
Label the known structures
- squamus part
- mastoid process
- styloid process
- Mandibular fossa
label the known structures
Mastoid part:
- Mandibular fossa
- styloid process
- stylomastoid foramen
- mastoid process
- mastoid notch
- mastoid foramen
Petrous part
label the known structures
Squamous part
Petrous part
Styloid process
mastoid process
Label the known structures
Squamous part:
- external occipital protuberance
- superior nuchal line
- inferior nuchal line
- external occipital crest
Basilar part:
- Occipital condyle
Label the known structures
Squamous part
- external occipital protuberance
- superior/inferior nuchal line
- externalhttps://www.brainscape.com/decks/7086214/cards/251973388/edit# occipital crest
Basilar part
- pharyngeal tubercle
- occipital condyle
- condylar canal
Label the known parts
Squamous part
Basilar part
Label the known structures
Anterior arch
- fovea of odontoid process
Posterior arch
- groover for vertebral artery
lateral mass
- transverse process
- transverse foramen
Label known structures
Anterior arch
- facet of odontoid process
- anterior tubercle
Posterior arch
- posterior tubercle
lateral mass
- Tubercle for transverse L.
- Transverse process
label known structures
Anterior arch
- anterior tubercle
Posterior arch
- groove for vertebral artery
Lateral mass
- inferior/superior articular process
What can a blow to the top of the head cause?
fracture both arches of the atlas.
not typically injury spinal cord
if transverse L ruptured odontoid process may injure spinal cord
(jefferson or burst fracture)
Label known structures
vertebral body
- dens (odontoid process)
(can label common)
Label known structures
Vertebral body
- odontoid process (dens)
(can label common structures)
Injury to the axis?
Vertebral arch (hangman fracture)
from hyperextension of head on the neck
not head and neck (whiplash)
Odontoid process
horizontal blow
transverse L stronger so process breaks
break of the odontoid process and healing
breaks at base is will usually not heal. transverse L
holding it away from blood supply
Odontoid process breaks at the inferior to the base more likely to heal
Label the known structures
(typical cervical vertebrae) 3-6
everything
Label the known structures
(typical cervical vert) 3-6
Everything
Label structures
7th cervical vert
- vertebra prominens (C7)
- spinous process (long and well pronounced)
vertebral lamina dont fuse?
Spina bifida occulta (24% pop)
often L5 and S1
tuft of hair
Neural tissue and meninges it is spina bifida cystica
Cervical vertebrae and dislocations
articulating facets are more horizontal than other vertebrae it requires less force to dislocate cervical vertebrae.
(large vertebral foramen so this doesnt usually cause spinal cord injury)
Name the structures
all
Name the structures
all
Label the structures
all
