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What extends the vertebral column and head and rotates them to the opposite side?
Semispinalis
What is the correct arrangement of the bones of a vertebral column starting from the brain to the legs?
The arrangement of the bones in the vertebral column start with the cervical spine. The cervical spine controls the head and neck. The next section of the vertebral column is the thoracic spine which controls the truck and mid back. The last vertebral column is the lumbar spine which is responsible for the legs.
Two factors that permit flexability of the vertebral column?
The presence of the discs and the S-shaped or springlike construction of the vertebral column prevent shock to the head in walking and running and provide flexibility to the body trunk.
Which vertebral structure supports the head and allows the rocking motion of the occipital condyles?
atlas
What protect the spinal cord and support head and back?
The Vertebral Column (aka, the spine or backbone) protects the spinal cord and supports the head and back.
Explain a common feature of the bones that make up the vertebral column?
A common feature of the bones that make up the vertebral column, known as vertebrae, is the presence of a central body, or vertebral body, which provides strength and weight-bearing support. Each vertebra also has a vertebral arch that encircles the spinal canal, protecting the spinal cord. Additionally, vertebrae are interconnected by intervertebral discs and ligaments, allowing for both stability and flexibility in the spine. The overall structure facilitates the support of the head and trunk while enabling a range of motion.
Describe the skeletal features at the point where the vertebral column articulates with the skull?
The point where the vertebral column articulates with the skull is called the atlanto-occipital joint. This joint consists of the occipital condyles of the skull articulating with the atlas (C1 vertebra). It allows for nodding or "yes" motion of the head.
What does the vertebral column support?
The axis supports the weight of the head.
What is the function of the vertebral column?
The vertebral column serves two main purposes.The vertebrae are support for the body's frame, keeping it standing upright. It connects the head to the rest of the body.To serve as protection for the spinal cord. The bony rings surround the sensitive spinal canal, which transmits the body's electrical transmissions from the brain to the rest of the body.
What is a vertebral structure pivots on C2 and lacks a body?
The vertebral structure that pivots on C2 and lacks a body is the dens (odontoid process). It is a bony projection that extends from the axis (C2 vertebra) and serves as the pivot point for rotation of the head.
Joint between skull and vertebral column?
The atlantoccipital joint which is a gliding joint, not as some people believe it to be a pivot joint. The pivot joint in this area is the atlantoaxial joint which is between C1 & C2 and doers not come into contact with the skull.
What is o odontoid?
The odontoid process, also known as the dens, is a projection of the axis bone in the vertebral column. It is an important structure that helps stabilize the atlas bone (C1) and allows for rotational movement of the head. Injuries to the odontoid can be serious and may require surgical intervention.
