Exam 2 - Regions in Spinal Column Flashcards
What are the 3 regions of the occiput?
Squamous portion
Lateral/condylar (2)
Basilar portion
Posterior part and most of the base of the cranium is formed by what
Occipital bone
What pass through foramen magnum?
Medulla oblongata
Vertebral arteries
Spinal arteries
Where the glossopharyngeal, vagus, and accessory cranial nerve exit the skull
Jugular foramen
The portion that connects to the sphenoid bone and is an area for attachment of many ligaments and muscles
Basilar portion
First _____ of flexion/extension of head and neck takes place here before any other vertebra move
50%
What are the 4 nuchal lines?
Median
Inferior
Superior
Highest
The largest part of the occiput that is posterior to the foramen magnum
Squamous portion
A typical cervical vertebra has _______ shaped bodies
Rectangular/oval
A typical cervical vertebra has _______ SP
Bifid
How many cervical lips does a typical cervical vertebra have?
3 - 2 superior lateral & 1 anterior inferior lip
in the typical cervical vertebra, the TP are _______ to the AP
Anterior
__________ ________ are ascension of the vertebral artery
Transverse foramen
What is a Costco-transverse lamella?
Groove on superior surface of the TVP for exit of the spinal nerve - typical cervical vertebra
A typical cervical vertebra has a ________ neural foramen
Triangular
Which cervical are typical
3,4,5,6
Peculiar cervical vertebra are..
1,2,7
What is the purpose of the uncinate processes?
Prevent lateral slipping of vertebra above
When does the uncinate process develop?
Between 9 and 10
A typical cervical has ___ true articulations and ___ pseudo ones
6
2
Bony elevations on the superior lateral margins of the cervical vertebrae are called what?
Uncinate processes
Uncinate processes articulate with the inferior lateral aspect of the vertebra above to form what?
Uncovertebral joint AKA Joints of Luschka AKA Luschkal Joint
What is the defining characteristics of the atlas
Lacks a body, pedicles, Laminae, spinous
Has anterior arch, posterior arch, and lateral masses, and TVPs
What is developed from the hypochondral arch that typically unites both halves of vertebral bodies
Anterior Arch