Lecture 1 (osteology Of The Skull) Flashcards
Name all the Atypical vertebra
C1 atlas C2 axis C7 vertebral prominence
What are the typical vertebral
C3 to C6
What is the function of the skull
Provide protection to brain brainstorm, site for muscle attachment, head framework and identity of individual
What are Pneumatised bones and why do we have them?
Bones with air spaces (air cells or sinuses such as temporal frontal etc.. )
To add resonance to our voice and to reduce weight
Name the bones you find in neurocranium region
Paired bones temporal and partial and singular bones frontal ethmoid sphenoid & occipital
Name the bones you find in viscrocranium region
14 irregular bone
Vomer and mandible
Paired bones (nasal, lacrimal, zygomatic, palatine, maxillae & inferior nasal conchae)
What is the consequences of a trauma in pterion area?
Epidural haematoma
What is Wormian bones?
abnormal ossicles that develop from extra ossification centers within the cranium. They are most frequently located in the lambdoid suture or the coronal suture, and have been seen in the fontanelles, particularly the posterior fontanelle.
What is the function of Ligamentum nuchae
Attaches external occipital protuberance & foramen magnum to spinous processes of the cervical vertebrae
Supports head & resists flexion, attachment point for muscles
What is the role of the cervical spin c1 -c7
Allow lateral flexion & rotation
How do you differentiate between typical and atypical vertebra
Spinous process bifid in c2-c6
Where do you find Atlanto-occipital joint and what’s its function
Between occipital bone and c1, allow flexion of head “nodding”
Where do you find atlanto-axial joint and what’s it’s function?
Joining c1 and c2, allow rotation of head, side to side movements
What’s the function of hyoid bone?
Connects oral cavity with pharynx posteriorly & larynx inferiorly
