What are the articulations of the vertebrae?
What are the articulations of the vertebrae?
The articulations of the vertebral column consist of (1) a series of amphiarthrodial joints between the vertebral bodies, and (2) a series of diathrodial joints between the vertebral arches. 1. Articulations of Vertebral Bodies (intercentral ligaments).
What are vertebras?
The vertebrae (back bones) of the spine include the cervical spine (C1-C7), thoracic spine (T1-T12), lumbar spine (L1-L5), sacral spine (S1-S5), and the tailbone. Each vertebra is separated by a disc. The vertebrae surround and protect the spinal cord.
How do vertebrae articulate with each other?
Each vertebra has a facet on each side of the vertebral body, which articulates with the head of a rib. There is also a facet on each of the transverse processes which articulates with the tubercle of a rib.
What is Heterocoelous?
Definition of heterocoelous 1 : of or relating to vertebrae having saddle-shaped articular surfaces heterocoelous birds. 2 [New Latin Heterocoela + English -ous] : of or relating to the Syconosa.
What is mean by Procoelous?
Definition of procoelous 1 of a vertebra : concave at the anterior end of the centrum and usually convex at the posterior end of the centrum. 2 : having procoelous vertebrae.
What are the joints between the vertebrae called?
The spinal column also has real joints (just like the knee or elbow or any other joints) called facet joints. The facet joints link the vertebrae together and give them the flexibility to move against each other.
What type of joints are between vertebrae?
The joints in the spine are commonly called Facet Joints. Other names for these joints are Zygapophyseal or Apophyseal Joints. Each vertebra has two sets of facet joints.
Which ribs articulate with which vertebrae?
Generally, there are twelve pairs of ribs. Each rib articulates posteriorly with two thoracic vertebrae; by the costovertebral joint. An exception to this rule is that the first rib articulates with the first thoracic vertebra only.
Which bone articulates with the vertebral column?
Superiorly, the C1 vertebra articulates (forms a joint) with the occipital condyles of the skull. Inferiorly, C1 articulates with the C2 vertebra, and so on.
What does Synsacrum mean?
Definition of synsacrum : a solidly fused series of vertebrae in the pelvic region in birds, dinosaurs, and pterosaurs comprising usually the last rib-bearing or thoracic vertebra, the two sacral vertebrae, and a varying number of caudal vertebrae — compare sacrum.
What is Opisthocoelous?
Definition of opisthocoelous : of, relating to, or being a vertebra that is concave behind with the anterior end of the centrum flat or convex and the posterior concave.
What is Amphiplatyan Centrum?
Definition of amphiplatyan : flat at both ends —used of vertebrae having both anterior and posterior surfaces of the centrum flat.
How many joints are there between two vertebrae?
There are three intervertebral joints between each adjacent vertebra from the axis to the sacrum – one between the vertebral bodies and a pair between the facets of adjoining vertebral arches (zygapophysial joints, also called facet joints).
What is articulating facet?
A facet is a flat or nearly flat surface on a bone. The vertebral articular facets are where two vertebrae articulate. There will be one pair of facets on the superior side of the vertebrae and one pair on the inferior side of the vertebrae.
What is the difference between amphicoelous and heterocoelous?
Amphicoelous: Fish, Rana sp. (Frog): A. Fish. Caudal, with haemal spine. B. Rana sp. Eighth vertebra. III. Heterocoelous: 1. Atlas:
What does heterocoelous mean?
1 : of or relating to vertebrae having saddle-shaped articular surfaces heterocoelous birds. 2 [ New Latin Heterocoela + English -ous ] : of or relating to the Syconosa.
What are the features of Centrum heterocoelous?
1. Centrum heterocoelous, i.e., surface saddle-shaped, anterior face concave from side to side and convex from above downwards; posterior face convex from side to side and concave from above downwards. 2. Odontoid process (centrum of first vertebra) peg-like.
What articulates with the coracoid?
The coracoid articulates with the forward edge of the sternum and with the scapula, humerus, and furcula. The furcula connects the shoulder joints with the anterior edge of the keel of the sternum.
