What are the 5 regions of the back?
What are the 5 regions of the back?
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 regions of the back?
Typically, the spine is divided into four main regions: cervical, thoracic, lumbar and sacral.
Where is the back region?
The back is the body region between the neck and the gluteal regions. It comprises the vertebral column (spine) and two compartments of back muscles; extrinsic and intrinsic.
What are the parts of your back?
The spine itself has three main segments: the cervical spine, the thoracic spine, and the lumbar spine. The cervical is the upper part of the spine, made up of seven vertebrae (bones). The thoracic is the center portion of the spine, consisting of 12 vertebrae. The lower portion of the spine is called the lumbar spine.
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 3 regions of the spine?
The normal anatomy of the spine is usually described by dividing up the spine into three major sections: the cervical, the thoracic, and the lumbar spine. (Below the lumbar spine is a bone called the sacrum, which is part of the pelvis). Each section is made up of individual bones, called vertebrae.
What are the three spinal regions?
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 is the back side of the body called?
Posterior or dorsal – back (example, the shoulder blades are located on the posterior side of the body). Medial – toward the midline of the body (example, the middle toe is located at the medial side of the foot).
What’s the back of the body called?
posterior
The front of the body is referred to as anterior or ventral, while the back is referred to as posterior or dorsal. Proximal and distal describe relative position on the limbs.
What is the anatomy of the lower back?
Anatomy 1 Spine. The spine is composed of 33 bones called vertebrae, which stack together to form the spinal canal. This protects the spinal cord inside. 2 Spinal cord. The spinal cord runs from the neck down to the lower back. 3 Muscles in the back. There are three different groups of muscles in the back.
Where is the lumbar region of the back located?
Your lower back is a superb feat of engineering—it’s strong, weight-bearing, and sturdy, yet highly flexible with a range of motion in all directions. The lumbar region of the spine, more commonly known as the lower back, is situated between the thoracic, or chest, region of the spine, and the sacrum. Watch: Lumbar Spine Anatomy Video
Where do the muscles of the back start?
The Muscles of the Back Muscles make up a large part of the anatomy (structure) of the back. They start at the top of the neck and go down to the tailbone. Back pain is common and might be caused by a problem with a muscle.
What makes up the structure of the back?
The back’s structure is complex. It is made of the spine, discs, nerves, muscles, tendons, ligaments, and other structures. Each of these parts are individual structures, which function or work together. Here’s how: The spine is made up of bones called vertebrae.