Anatomy lab lesson
Anatomy Lab (10/03/2013)
Professor : BEIUSAN CORINA
Anatomical terms :
Vertebral Column :
In the vertebral column, you’ll find :
7 cerebral vertebras
12 thoracic vertebras
5 lumbar vertebras
5 sacral vertebras (fused)
4/5 coccyx vertebras (fused)
Composition of a vertebrae :
NB : a vertebrae in a superior position to another is “suprajacent” ; one situated under another one is “subjacent”
We can notice just behind the body the presence of a “hole”, called foramen, where the spine is situated.
NB : the sacrum and the coccyx are called “false vertebras”
NB : a specific trait of the cervical vertebras is the presence of orifices in the transversal processes, as well as well as grooves (in the region of the pedicule)
Cerebral vertebras (C1 to C7):
The principal characteristic of the cervical vertebras is that their spinal process is bifid (it separates itself at its extremity, as a snake’s tongue)
C1 : also named “Atlas” (greek mythology, giant named Atlas that supports the planet), it is a single vertebrae, whose particularity is the absence of body, but 2 lateral masses that sustain the occipital bone (bone at the base of the skull)
C2 : named “Axis”, it presents an upward prominence on its anterior plan, called “tooth”. The tooth goes into the foramen of Atlas (C 1) and serves as an axis.
C7 : this cervical vertebra has the particularity of not presenting a bifid spinal process.
Thoracic vertebras (T1 to T12) :
They present laterally transversal processes, articulated with the ribs (these transverse processes present articular surfaces).
Lombar processes (L1 to L5) :
They present laterally remnants of costal processes, attached to their transverse processes.
Vertebras increase in size on the sagittal plan in the thoracic region, whereas they increase in size on the horizontal plan in the lumbar region
Professor : BEIUSAN CORINA
Anatomical terms :
Vertebral Column :
In the vertebral column, you’ll find :
7 cerebral vertebras
12 thoracic vertebras
5 lumbar vertebras
5 sacral vertebras (fused)
4/5 coccyx vertebras (fused)
Composition of a vertebrae :
NB : a vertebrae in a superior position to another is “suprajacent” ; one situated under another one is “subjacent”
We can notice just behind the body the presence of a “hole”, called foramen, where the spine is situated.
NB : the sacrum and the coccyx are called “false vertebras”
NB : a specific trait of the cervical vertebras is the presence of orifices in the transversal processes, as well as well as grooves (in the region of the pedicule)
Cerebral vertebras (C1 to C7):
The principal characteristic of the cervical vertebras is that their spinal process is bifid (it separates itself at its extremity, as a snake’s tongue)
C1 : also named “Atlas” (greek mythology, giant named Atlas that supports the planet), it is a single vertebrae, whose particularity is the absence of body, but 2 lateral masses that sustain the occipital bone (bone at the base of the skull)
C2 : named “Axis”, it presents an upward prominence on its anterior plan, called “tooth”. The tooth goes into the foramen of Atlas (C 1) and serves as an axis.
C7 : this cervical vertebra has the particularity of not presenting a bifid spinal process.
Thoracic vertebras (T1 to T12) :
They present laterally transversal processes, articulated with the ribs (these transverse processes present articular surfaces).
Lombar processes (L1 to L5) :
They present laterally remnants of costal processes, attached to their transverse processes.
Vertebras increase in size on the sagittal plan in the thoracic region, whereas they increase in size on the horizontal plan in the lumbar region