What are the 3 major sections of the vertebral column?
What are the 3 major sections of the vertebral column?
The upper three regions of the spinal column are termed the cervical, thoracic, and lumbar; they contain individually jointed vertebrae. The two lower regions—the sacrum and coccyx, or tailbone—are formed from fused vertebrae.
What are the 5 main sections of the vertebral column?
The spine is composed of 33 bones, called vertebrae, divided into five sections: the cervical, thoracic, and lumbar spine sections, and the sacrum and coccyx bones. The cervical section of the spine is made up of the top seven vertebrae in the spine, C1 to C7, and is connected to the base of the skull.
What are the major divisions of the vertebral column?
As mentioned above, our vertebrae are numbered and divided into five regions: cervical, thoracic, lumbar, sacrum, and coccyx. Did you know? Only the top 24 bones are moveable. The vertebrae of the sacrum and coccyx are fused.
What are the 4 sections of the vertebrae?
The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx (Fig. 2). Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused. The vertebrae in each region have unique features that help them perform their main functions.
What are the 3 types of vertebrae and how are they different?
The vertebral column can be divided into three segments: Cervical. Each of the three segments of the spine has a curve. The cervical spine and the lumbar curve both are convex anteriorly, while the thoracic spine curves the opposite way, convex posteriorly.
Which is the lowest section of the vertebral column?
sacrum
The bottom of the spine is called the sacrum. It is made up of several vertebral bodies usually fused together as one. The remaining small bones or ossicles below the sacrum are also fused together and called the tailbone or coccyx.
How many vertebrae are in each section of the spinal column?
Each section is made up of individual bones, called vertebrae. There are 7 cervical vertebrae, 12 thoracic vertebrae, and 5 lumbar vertebrae.
How many sections are in the spine?
The spine itself has three main segments: the cervical spine, the thoracic spine, and the lumbar spine.
What are 3 types of processes of a typical vertebra?
The vertebral foramen is large and triangular. The transverse processes are long and narrow and three tubercles can be seen on them. These are a lateral costiform process, a mammillary process and an accessory process.
Which section of the vertebral column is capable of the most movement?
23 Cards in this Set
| Which section of the vertebral column is capable of the most movement? | Cervical |
|---|---|
| The most lateral branch of the Erector Spinalis group is the? | Ilicostalis |
| In the lumbar region, the erectors lie deep to what connective tissue structure? | Thoracolumbar Aponeurosis |
What is the primary function of the vertebral column?
The major function of the vertebral column is protection of the spinal cord; it also provides stiffening for the body and attachment for the pectoral and pelvic girdles and many muscles. In humans an additional function is to transmit body weight in walking and standing. human vertebral column Human vertebral column. Encyclopædia Britannica, Inc.
Do all vertebrates have vertebral column?
Main Difference – Chordates vs Vertebrates. The main difference between chordates and vertebrates is that some chordates do not have a vertebral column whereas all vertebrates have a vertebral column. In vertebrates, the vertebral column surrounds and protects the nerve cord. Both chordates and vertebrates consist of a central nervous system.
What is a vertebrae column?
The vertebral column, also known as the backbone or spine, is part of the axial skeleton. The vertebral column is the defining characteristic of a vertebrate in which the notochord (a flexible rod of uniform composition) found in all chordates has been replaced by a segmented series of bone: vertebrae separated by intervertebral discs.
What is the vertebral column and skull?
vertebral column (or backbone or spine) The column of vertebrae between the skull and the hip bones, supporting the body and shielding the spinal cord. It has five sections: cervical, thoracic, lumbar, sacral, and coccygeal. See also coccyx, sacrum.
