Quiz #3 Flashcards
Spinal Column cont. & muscles (40 cards)
What forms the top and bottom, portions of an intervertebral disc?
Cartilaginous end plate
What structures separate the bodies of the vertebrae from C2-C3 to L5-S1?
Intervertebral Discs
What are the three components of an intervertebral disc?
Anulus Fibrosus
Nucleus Pulposus
Cartilaginous End Plate
Synovial joints occur between what parts of vertebrae from C2 to L5-S1?
Superior and inferior articular processes
What are the two supporting ligaments that appear on the anterior and posterior aspect of the vertebral body?
Posterior Longitudinal Ligament
Anterior Longitudinal Ligament
What is the relative size of the cervical vertebrae?
small
What is the shape of the spinous processes of C1-C6?
Bifid
What openings in the cervical vertebrae allow the passage of the vertebral arteries and veins?
Transverse Foramina
What is another anatomical term for C1?
Atlas
What structures does C1 lack? (2)
Body
Spinous Process
What is another anatomical term for C2?
Axis
During development the body of C1 fuses to C2 to form what structure?
Dens (odontoid process)
What is another anatomical term for the spinous process of C7? (Sometimes T1)
Vertebra Prominens
What is the general shape of the bodies of T1-T12?
Heart-shape
What is a distinguishing characteristic of many of the thoracic vertebrae?
The spinous process is long and pointed and in some angled sharply inferiorly?
Thoracic vertebrae can be distinguished from all other vertebrae by what features?
Costal Facets and Demi Facets
What direction are the articular surfaces of the
thoracic vertebrae oriented? How does this
affect their movement?
- The superior surface is oriented posteriorly.
- The inferior surface is oriented anteriorly.
- Movement is in a coronal plane allowing
lateral flexion.
What is the general shape of the bodies of lumbar vertebrae?
Large, round, or oval
What is characteristic of the spinous processes of the lumbar vertebrae? (2)
Thick and blunt
Project Posteriorly
What direction are the articular surfaces of the
lumbar vertebrae oriented? How does this affect
their movement?
*Superior processes
face medially.
* Inferior processes
face laterally.
* Movement is in a
sagittal plane
allowing spinal
flexion and extension
What is the anatomical term for the anterior, superior bulge of the sacrum?
Sacral Promontory
What paired openings occur on the anterior surface of the sacrum?
Anterior Sacral (pelvic) foramina
What are the paired openings on the posterior side of the sacrum
Posterior sacral foramina (dorsal foramina)
The spinous processes of the sacrum form what structure?
median sacral crest