What are the 5 regions of the vertebrae?
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.
What are the 5 regions of the vertebral column how many bones are in each region?
Answer: The adult vertebral column consists of 24 vertebrae, plus the sacrum and coccyx. The vertebrae are subdivided into cervical, thoracic, and lumbar regions. There are seven cervical vertebrae (C1–C7), 12 thoracic vertebrae (T1–T12), and five lumbar vertebrae (L1–L5).
What are the 5 regions of the vertebral column from superior to inferior?
From superior to inferior, these are:
- Cervical – 7 vertebrae (C1 = highest; C7 = lowest)
- Thoracic – 12 vertebrae (T1 = highest; T12 = lowest)
- Lumbar – 5 vertebrae (L1 = highest; L5 = lowest)
- Sacral – 5 fused vertebrae (S1 = highest; S5 = lowest)
- Coccygeal – 3-4 fused vertebrae (Co1 = highest; Co3 = lowest)
What is the middle of the back called?
Thoracic (middle back): The chest or thoracic part of the spine has 12 vertebrae (T1 to T12). Your ribs attach to the thoracic spine. This section of the spine bends out slightly to make a backward C-shape called the kyphotic curve. Lumbar (lower back): Five vertebrae (L1 to L5) make up the lower part of the spine.
What are the three kinds of joints?
The adult human skeletal system has a complex architecture that includes 206 named bones connected by cartilage, tendons, ligaments, and three types of joints:
- synarthroses (immovable)
- amphiarthroses (slightly movable)
- diarthroses (freely movable)
How many vertebrae are there in each region?
There are 33 vertebrae in the human spine that are split into four regions that correspond to the curvature of the spine; the cervical, thoracic, lumbar, sacrum, and coccyx. The vertebrae of the sacrum and coccyx are fused, but those of the cervical, thoracic and lumbar regions are separated by intervertebral discs.
What is the correct order of the vertebrae?
Cervical, thoracic, lumbar, sacral.
What vertebra contains dens?
Axis (C2) The second cervical vertebra, or axis, supports the dens, or odontoid process, which projects rostrally from the body, serving as a pivotal restraint against horizontal displacement of the atlas.
Where is middle back pain located?
Middle back pain occurs below the neck and above the bottom of the rib cage, in an area called the thoracic spine. There are 12 back bones — the T1 to T12 vertebrae — located in this area.
What is the signs of nerve damage?
The signs of nerve damage
- Numbness or tingling in the hands and feet.
- Feeling like you’re wearing a tight glove or sock.
- Muscle weakness, especially in your arms or legs.
- Regularly dropping objects that you’re holding.
- Sharp pains in your hands, arms, legs, or feet.
- A buzzing sensation that feels like a mild electrical shock.
What are the three regions of the vertebrae?
The vertebrae are divided into three regions: cervical C1–C7 vertebrae, thoracic T1–T12 vertebrae, and lumbar L1–L5 vertebrae. The vertebral column is curved, with two primary curvatures (thoracic and sacrococcygeal curves) and two secondary curvatures (cervical and lumbar curves).
What are the five regions of the vertebral column?
The spine is split into five regions: the cervical, thoracic, lumbar, sacral, and coccyx. The vertebrae of the sacrum and coccyx are fused, but those of the cervical, thoracic, and lumber regions are free to articulate.
How many vertebrae are in the sacrum region?
The sacrum is made up of 5 fused vertebrae, and 3 to 5 small bones fuse to create the coccyx. Both structures are weight-bearing and integral to functions such as walking, standing and sitting. The sacrum is located in between the right and left iliac (or hip) bones, and forms the back of the pelvis.
How many bones are in the vertebrae?
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.