Which spinal nerves may arise from cervical enlargement?

The cervical enlargement of the spinal cord is the source of the spinal nerves that contribute to the brachial plexus and supply the upper limbs.

What does the spinal cord contain that causes cervical enlargement?

Gross anatomy

As the spinal cord is shorter in length than the vertebral column, it extends from the C3 to T1/T2 vertebral levels, its greatest circumference (approximately 38 mm) at the C6 level. The cervical enlargement is a result of the increased volume of motor cells in the ventral horns of the grey matter.

How many nerves arise from cervical?

In the cervical region there are eight cervical nerve roots and only seven cervical vertebra. The first seven cervical nerve roots exit the spinal canal above their numbered vertebra.

What vertebrae is the cervical enlargement?

The spinal cord expansion that corresponds to the arms is called the cervical enlargement and includes spinal segments C5—T1; the expansion that corresponds to the legs is called the lumbar enlargement and includes spinal segments L2—S3.

IT IS INTERESTING:  What is the difference between bursitis arthritis and tendonitis?

Where is the cervical enlargement of spinal cord?

Two enlargements of the spinal cord can be visualized: The cervical enlargement, which extends between C3 to T1; and the lumbar enlargements which extends between L1 to S2 (Figure 3.1).

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.

What nerves are affected by C4 C5 C6 C7?

Classic Patterns of Cervical Radiculopathy

Nerve root Interspace Pain distribution
C5 C4–C5 Neck, shoulder, lateral arm
C6 C5–C6 Neck, dorsal lateral (radial) arm, thumb
C7 C6–C7 Neck, dorsal lateral forearm, middle finger

How is cervical nerve compression treated?

If you have mild symptoms, you might find relief from:

  1. rest.
  2. soft cervical collar.
  3. hot or cold compress.
  4. practicing good posture.
  5. nonsteroidal anti-inflammatory drugs (NSAIDs)
  6. acupuncture.
  7. massage.
  8. yoga.

What is the cause of cervical enlargement?

It extends from about the fifth cervical to the first thoracic vertebra, its maximum circumference (about 38 mm.) being on a level with the attachment of the sixth pair of cervical nerves. The reason behind the enlargement of the cervical region is because of the increased neural input and output to the upper limbs.

At what spinal levels is the lumbosacral enlargement?

Lumbar enlargement comprises the spinal cord segments from L2 to S2, and is found about the vertebral levels T9 to T12.

IT IS INTERESTING:  How long after hip replacement surgery can I lift weights?

What do cervical nerves do?

Cervical Nerve Functions

Cervical nerves provide control and sensation to different parts of the body based on the spinal level from where they branch out. More specifically: C1, C2, and C3 (the first three cervical nerves) control the head and neck, including movements forward, backward, and to the sides.

What are the two areas of the spinal cord?

The two areas of the spinal cord most commonly injured are the cervical spine (C1–C7) and the lumbar spine (L1–L5). (The notation C1, C7, L1, L5 refer to the location of a specific vertebra in either the cervical, thoracic, or lumbar region of the spine.)

What part of the spinal cord represents an increase in cell body?

The cervical and lumbar regions of the spinal cord show a larger diameter compared to the rest of the regions. The cervical enlargement and lumbar enlargement represent an increased amount of neurons in the gray matter and axons in the white matter that serve the upper limbs and lower limbs, respectively.

Your podiatrist