As mentioned above, our vertebrae are numbered and divided into five regions:
cervical, thoracic, lumbar, sacrum, and coccyx
.
What are the 3 kinds of vertebrae within it?
The vertebrae are divided into three groups. There are seven cervical vertebrae (names C1 through C7),
twelve thoracic vertebrae
(named T1 through T12), and five lumbar vertebrae (named L1 through L5).
What are 5 fusion vertebrae?
The sacrum
is made of five fused vertebrae configured as an inverted triangular bone that is concave anteriorly and convex posteriorly. Within the sacrum lies the sacral canal, which is a continuation of the vertebral canal. It terminates as the sacral hiatus.
What is the weakest part of the spine?
The weakest part of the spine is
the cervical spine
, which is made up of seven vertebrae.
What are the 4 types of 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.
What are the names of the 26 vertebrae?
These regions are called the
cervical spine, thoracic spine, lumbar spine, sacrum, and coccyx
.
What do all vertebrae have in common?
All vertebrae share a basic common structure. They each consist of
an anterior vertebral body, and a posterior vertebral arch
.
What part of the spine controls the legs?
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.
At what age does the coccyx fuse?
The coccyx, commonly known as the tailbone, is below the sacrum. Individually, the sacrum and coccyx are composed of smaller bones that fuse (grow into a solid bone mass) together
by age 30
.
What is the bone called at the bottom of your spine?
The bottom of the spine is called
the sacrum
. It is made up of several vertebral bodies usually fused together as one. The remaining small bones or ossicles below the sacrum are also fused together and called the tailbone or coccyx.
What absorbs shock in the spine?
The intervertebral discs
are soft structures which act as shock absorbers between each of the vertebrae (bones) in the spine. A single disc sits between each vertebra. Each intervertebral disc has a strong outer ring of fibres (‘annulus’), and a soft, jelly-like centre (nucleus).
How do you know if something is wrong with your spine?
Emergency signs and symptoms of a spinal cord injury after an accident may include:
Extreme back pain or pressure in your neck
, head or back. Weakness, incoordination or paralysis in any part of your body. Numbness, tingling or loss of sensation in your hands, fingers, feet or toes.
What’s the weakest part of the body?
The stapedius is the smallest skeletal muscle in the human body.
The lower back is the weakest muscles
and the one place most humans don’t train when exercising. If looking for weakest point to hit in a fight especially if opponent is bigger than you: The eyes, throat, nose, groin, instep.
Which part of spine takes most strain?
The most vulnerable areas of the spine are the
lumbar (lower back)
, and the cervical (neck) regions. They are the most mobile, and susceptible to injury. The lower back is also the main weight bearing part of the spine.
How do you know if you have T1 vertebrae?
T1 is an atypical
thoracic vertebra
. In contrast to typical thoracic vertebrae, it contains a complete facet for the 1
st
rib and a demifacet for the 2
nd
rib. It contains lips on the upper surface of the body. T1 also has a spinous process more horizontal than other thoracic vertebrae.
