What is the dorsal vertebrae?
Noun. 1. dorsal vertebra – one of 12 vertebrae in the human vertebral column; thoracic vertebrae extend from the seventh cervical vertebra down to the first lumbar vertebra. thoracic vertebra. vertebra – one of the bony segments of the spinal column.
How many vertebrae are in dorsal?
The spine has three normal curves: cervical, thoracic and lumbar. There are seven cervical vertebrae in the neck, 12 thoracic vertebrae in the torso and five lumbar vertebrae in the lower back.
What vertebrae is the skeleton?
Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. 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.
What are the anatomical features of the vertebrae?
A typical vertebra consists of a body and a vertebral arch. The arch is formed by the paired pedicles and paired laminae. Arising from the vertebral arch are the transverse, spinous, superior articular, and inferior articular processes. The vertebral foramen provides for passage of the spinal cord.
Where is dorsal vertebrae located?
Thoracic spine is the central part of the spine, also called as dorsal spine, which runs from the base of the neck to the bottom of your rib cage. The thoracic spine provides flexibility that holds the body upright and protects the organs of the chest.
Why thoracic vertebrae called dorsal?
The eleventh and twelfth dorsal vertebrae are called false ribs because they are not joined with the sternum. Hence, the dorsal spine (also known as thoracic spine) allows flexion, extension, rotation and leteral flexion movements.
What are the five main parts of the vertebrate skeleton?
The skeletal system in vertebrates is divided into the axial skeleton (which consists of the skull, vertebral column, and rib cage), and the appendicular skeleton (which consists of the shoulders, limb bones, the pectoral girdle, and the pelvic girdle).
What is the basic common structure of vertebrae?
What are the 4 sections of the spine?
Understanding Spinal Anatomy: Regions of the Spine – Cervical, Thoracic, Lumbar, Sacral. The regions of the spine consist of the cervical, thoracic, lumbar, and sacral.
What are the 5 major regions 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.