Which spinal curves are convex?
|Type of Spinal Curves||Curve Description|
|Kyphosis or Kyphotic Curve||Concave anteriorly and convex posteriorly|
|Lordosis or Lordotic Curve||Convex anteriorly and concave posteriorly|
|Cervical Lordosis||20 to 40 degrees|
What type of curvature does the cervical spine have?
The cervical spine (neck) and lumbar spine (lower back) have “lordotic” curves that face the opposite direction – like a backward “C”. When the thoracic spine curves outside of the normal range, it creates a “hunchback” look and the shoulders slump forward.
What parts of the spine are concave?
Sacrum and Coccyx – The 9 lowest vertebrae become fused into 2 bones. The five sacral bones are convex and the 4 coccygeal bones are concave.
What is convexity of the spine?
Kyphosis (Curvature of the Spines)
The thoracic region of the spine has a “C”-shaped convexity; an exaggeration of which results in a condition called kyphosis. Kyphosis is characterized by an abnormal spinal curvature, which causes a physical deformity of the upper back commonly known as hunchback.
Why is my spine concave?
Poor posture is one of the most common causes of hyperlordosis. When the body is in a seated position, muscles in the lumbar region can tighten too much as they try to stabilize and support the spinal column. This gradually pulls the spine out of alignment, causing increased curving of the spine.
What does a straight cervical spine mean?
Straightening of the cervical spine means that you have lost the good curve or the lordosis of the cervical spine. As far as it being caused by muscle spasms, I don’t know if you were in a car accident or something that would have caused the muscles to be in spasm. It does not mean that you have scoliosis.
What happens when you lose the curve in your neck?
The loss of a cervical curve makes the muscles at the front of your neck far less flexible and may overstretch other muscles, including the anterior and posterior paraspinal muscles and suboccipital muscles.
Which spinal nerves affect which parts of the body?
The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.
How many vertebrae does the cervical spine have?
The spine above the sacrum consists of: Seven bones in the neck—the cervical spine. 12 bones in the chest—the thoracic spine. Five bones in the lower back—the lumbar spine.
How much curve in spine is normal?
While a normal spine curve at the thoracic region should be within 20 to 50 degrees, kyphosis forces a curve greater than 50 degrees. Patients experience moderate back pain and fatigue. With kyphosis, the curvature forces the body to hunch over and appear as if you are lounging.
What are the three types of spinal deformities?
There are three main types of spine curvature disorders, including:
- Lordosis. Also called swayback, the spine of a person with lordosis curves significantly inward at the lower back.
- Kyphosis. Kyphosis is characterized by an abnormally rounded upper back (more than 50 degrees of curvature).