Aclands Anatomy Extra Notes Flashcards
What does the petrous part of temporal contain?
Structures of the inner and middle ear
What is the big groove behind the jugular foramen for?
Sigmoid sinus - main venous drainage channel for the brain
Which ligament holds the dens in place?
Transverse ligament of the atlas
And above by the 2 alar ligaments
What types of joints are the intervertebral joints?
Synovial joints
Have synovial fluid between them contained within a fibrous joint capsule and articular cartilage lining them
What are intervertebral discs made of?
Fibrocartilage
What is the nuchal ligament?
Sheet of strong fibrous tissue that extends from the spinous process of the first thoracic vertebra to the external occipital protuberance
What does the nuchal ligament limit?
Forward flexion of the head and cervical spine
What is the anterior longitudinal ligament?
Broad band running the whole length of the vertebral column, connecting the fronts of the vertebral bodies. Ends at the tubercle on the arch of the atlas.
What is the posterior longitudinal ligament?
Runs down the backs of the vertebral bodies inside the vertebral canal. Much broader and thicker in the neck than lower down.
What is the highest part of the posterior longitudinal ligament?
Tectorial membrane - attaches to base of occiput and body of axis
What ligament lies directly beneath the tectorial membrane?
Transverse ligament of atlas
Where does the transverse ligament attach?
Attached on each side to a tubercle on the atlas
What does the transverse ligament do?
Stops dens from being displaced backwards
What does the transverse ligament give off?
A superior band to the base of the occiput
Inferior band downwards to the body of the axis
These are the cruciform ligament
Where do the alar ligaments attach?
Odontoid process to inside of occipital condyles
