A&P Test 2 Flashcards
How many cervical vertebra are there?
7
What is the atlas named after?
a mythical god who carried the weight of the world on his shoulders
Why doesn’t C1 have a big vertebral body?
It doesn’t have to carry a lot of weight
What is the facet for dens used for on C1?
It is to connect the Dens of C2 to C1
What is the tubercle called that projects from the front and back of C1’s arches?
anterior and posterior tubercle
What is the portion of C1 that connects with the skull?
Superior articular processes’ facets
What is the large opening called at the base of the skull?
Foramen Magnum
What are the names of the downward projections are on either side of the foramen magnum?
Occipital condyle
Where is the occipital bone located?
on the base of the skull
What do the occipital condyles connect to?
C1
What are the atlantooccipital ligaments?
There are 2: anterior and posterior ligaments that connect the top of the spine(Atlas) through an opening in skull called the foramen magnum to the base of the skull (occipital bone)
What sets up a pivot point in a nodding fashion between the skull and atlas?
The curve of the superior articular process with cartilage between
What is the special structure on the Axis that is not found anywhere else?
The dens: a big bony structure on the posterior side of C2
What does the anterior articular facet rub up against?
The posterior side of the anterior arch of C1
What is on the posterior side of the dens?
Ligaments that wrap themselves around it at the top of the neck to make sure that it’s a solid connection.
Does C2 have a body?
Yes
What kind of flexibility is possible between the atlas and axis?
swivel motion side to side
What are the ligaments that run from the sacrum or pelvis to the base of the skull?
anterior longitudinal ligament
posterior longitudinal ligament
What ligaments links the tips of the transverse processes together?
intertransverse ligament (small ligament)
What ligaments sit on the tips of the spinous processes on the back of the spine?
Supraspinous ligament
What ligament is immediately deep to the Supraspinous ligament and what does it do?
Interspinous ligaments. They connect the vast bulk of the spinous processes to each other. They cover more area than the Supraspinous ligament.
The ligamentum flava connects what?
The rest of the anterior arch together from each vertebral level
Why is the Ligamentum flava a little more stretchy than the other ligaments?
The others are made of fairly rigid collagen
What are you looking for to tell if you are in the ligamentum flava?
Change in resistance