Anatomy of Backbone Details
Best Anatomy of Backbone. Mobile Phone Number 01797522136, 01987073965. Backbone anatomy discusses the anatomy of vertebral column, anatomy of spinal cord, anatomy of cervical vertebra, anatomy of thoracic vertebra, anatomy of lumber vertebra, anatomy of sacral vertebra, anatomy of sacrum, anatomy of coccygeal vertebra, anatomy of coccyx, anatomy of vertebral disc. Anatomy of Backbone is an important subject for Physiotherapy Course 1 Year, Physiotherapy Course 2 Years, Diploma in Physiotherapy Technology, Diploma in Physiotherapy, PDT Orthopedics, PDT Medicine, PDT Orthopedic Nursing Courses. All the above courses are available in HRTD Medical Institute. HRTD Medical Institute is an Organization of HRTD Limited.

Vertebral Column in Anatomy of Backbone
The vertebral column, also known as the spine, is the bony structure that runs from the base of the skull to the tailbone. It protects the spinal cord, supports the body’s weight, and allows for movement.
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Structure
- The vertebral column is made up of 33 vertebrae, which are separated by intervertebral discs.
- The vertebrae are divided into five regions: cervical, thoracic, lumbar, sacral, and coccygeal.
- The vertebral column has an S-shape when viewed from the side.
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Function
- The vertebral column supports the head and body’s weight.
- It protects the spinal cord from injury.
- It allows for movement of the trunk and limbs.
- It helps to maintain spinal alignment.
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Pathology
- Degenerative diseases of the vertebral column are the leading cause of spinal disorders.
- Trauma, neoplastic disease, and developmental anomalies are also causes of spinal problems.
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Exercises
- Strengthening the core muscles that support your spine can help prevent back injuries and pain.
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Spinal Cord in Anatomy of Backbone

Cervical Spine in Anatomy of Backbone
The cervical spine is the part of the spine that makes up the neck. It’s made up of seven vertebrae. The vertebrae are C1, C2, C3, C3, C4, C5, C6, and C7. These vertebrae are separated by intervertebral discs. The cervical spine supports the head and neck, and allows for a wide range of motion.
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Anatomy of Cervical Spine
- The first two vertebrae, the atlas (C1) and the axis (C2), are designed for rotation.
- The atlas is a ring-shaped bone that holds the head upright.
- The axis has a post-like projection that allows the atlas to pivot.
- The spinal cord runs through the spinal canal, which is a hollow space in the center of the spine.
- The intervertebral discs act as shock absorbers.
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Function of Cervical Spine:
- The cervical spine is very flexible, allowing for a wide range of head and neck motion.
- The cervical spine is at risk for injury from sudden movements, such as whiplash.
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Pain of the Cervical Spine:
Pain in or around the cervical spine is called cervicalgia. Neck pain is a common symptom of many different injuries and medical conditions.
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Cervical Vertebra Atlas and Axis in Anatomy of Backbone

Thoracic Spine in Anatomy of Backbone
The thoracic spine is the part of spine that is attached to the thorax. It’s made up of 12 vertebrae. The vertebrae are T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, and T12.
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Function of Thoracic Spine:
- Supports the upper body and rib cage
- Helps keep the body upright
- Controls the muscles and organs of the chest and abdomen
- Helps with balance and posture
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Anatomy
- The thoracic spine has a kyphotic curve
- The vertebrae are connected by intervertebral discs that provide cushioning and flexibility
- The thoracic spine has facet joints that allow for rotation and lateral flexion
Pain and injury of Thoracic Spine:
- Irritation of the large muscles of the back and shoulder can be painful
- Joint problems in the upper back can be painful
- Thoracic spinal cord injuries can cause pain that radiates into the arms, legs, or around the rib cage
- Thoracic spinal cord injuries can also cause weakness or loss of sensation in the legs, genitals, or rectal region
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- āĻĨā§āϰāĻžāϏāĻŋāĻ āϏā§āĻĒāĻžāĻāύāĻžāϞ āĻāϰā§āĻĄā§āϰ āĻāĻāĻžāϤā§āϰ āĻĢāϞ⧠āĻĒāĻž, āϝā§āύāĻžāĻā§āĻ āĻŦāĻž āĻŽāϞāĻĻā§āĻŦāĻžāϰ āĻ āĻā§āĻāϞ⧠āĻĻā§āϰā§āĻŦāϞāϤāĻž āĻŦāĻž āϏāĻāĻŦā§āĻĻāύ āĻšā§āϰāĻžāϏ āĻĒā§āϤ⧠āĻĒāĻžāϰā§āĨ¤
Conditions that affect the thoracic spine Cartilage tears and degeneration in the facet joints, Misaligned or displaced ribs, Thoracic herniated disc, Arthritis, and Osteoporosis.
- āĻĒāĻŋāĻ āĻāĻŦāĻ āĻāĻžāĻāϧā§āϰ āĻŦā§āĻšā§ āĻĒā§āĻļā§āϤ⧠āĻā§āĻŦāĻžāϞāĻžāĻĒā§āĻĄāĻŧāĻž āĻŦā§āĻĻāύāĻžāĻĻāĻžāϝāĻŧāĻ āĻšāϤ⧠āĻĒāĻžāϰā§
-  āĻāĻĒāϰā§āϰ āĻĒāĻŋāĻ ā§āϰ āĻāϝāĻŧā§āύā§āĻā§āϰ āϏāĻŽāϏā§āϝāĻž āĻŦā§āĻĻāύāĻžāĻĻāĻžāϝāĻŧāĻ āĻšāϤ⧠āĻĒāĻžāϰā§
- āĻĨā§āϰāĻžāϏāĻŋāĻ āϏā§āĻĒāĻžāĻāύāĻžāϞ āĻāϰā§āĻĄā§āϰ āĻāĻāĻžāϤā§āϰ āĻĢāϞ⧠āĻŦā§āϝāĻĨāĻž āĻšāϤ⧠āĻĒāĻžāϰ⧠āϝāĻž āĻŦāĻžāĻšā§, āĻĒāĻž āĻŦāĻž āĻĒāĻžāĻāĻāϰā§āϰ āĻāĻžāĻāĻāĻžāϰ āĻāĻžāϰāĻĒāĻžāĻļā§ āĻāĻĄāĻŧāĻŋāϝāĻŧā§ āĻĒāĻĄāĻŧā§
- āĻĨā§āϰāĻžāϏāĻŋāĻ āϏā§āĻĒāĻžāĻāύāĻžāϞ āĻāϰā§āĻĄā§āϰ āĻāĻāĻžāϤā§āϰ āĻĢāϞ⧠āĻĒāĻž, āϝā§āύāĻžāĻā§āĻ āĻŦāĻž āĻŽāϞāĻĻā§āĻŦāĻžāϰ āĻ āĻā§āĻāϞ⧠āĻĻā§āϰā§āĻŦāϞāϤāĻž āĻŦāĻž āϏāĻāĻŦā§āĻĻāύ āĻšā§āϰāĻžāϏ āĻĒā§āϤ⧠āĻĒāĻžāϰā§āĨ¤

Thoracic Vertebra T1 in Anatomy of Backbone
The first thoracic vertebra (T1) is a unique vertebra that connects the cervical and thoracic spine. It has several distinct features, including:
āĻĒā§āϰāĻĨāĻŽ āĻŦāĻā§āώāĻ āĻāĻļā§āϰā§āĻāĻž (T1) āĻšāϞ āĻāĻāĻāĻŋ āĻ āύāύā§āϝ āĻāĻļā§āϰā§āĻāĻž āϝāĻž āϏāĻžāϰā§āĻāĻŋāĻāĻžāϞ āĻāĻŦāĻ āĻĨā§āϰāĻžāϏāĻŋāĻ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄāĻā§ āϏāĻāϝā§āĻā§āϤ āĻāϰā§āĨ¤ āĻāĻāĻŋāϰ āĻŦā§āĻļ āĻāϝāĻŧā§āĻāĻāĻŋ āϏā§āĻŦāϤāύā§āϤā§āϰ āĻŦā§āĻļāĻŋāώā§āĻā§āϝ āϰāϝāĻŧā§āĻā§, āϝāĻžāϰ āĻŽāϧā§āϝ⧠āϰāϝāĻŧā§āĻā§:
- Body: Broad, concave, and lipped on either side, similar to a cervical vertebra
- Spinous process: Long, thick, and almost horizontal, similar to a cervical vertebra
- Transverse processes: Long and contain facets for the first pair of ribs
- Superior articular facets: Directed upward and backward
- Inferior demifacets: For articulation with the second rib
- Upper vertebral notches: Deeper than those of other thoracic vertebrae
- āĻĻā§āĻš: āĻĒā§āϰāĻļāϏā§āϤ, āĻ āĻŦāϤāϞ, āĻāĻŦāĻ āĻāĻāϝāĻŧ āĻĒāĻžāĻļā§ āĻ ā§āĻāĻāϝā§āĻā§āϤ, āϏāĻžāϰā§āĻāĻŋāĻāĻžāϞ āĻāĻļā§āϰā§āĻāĻžāϰ āĻŽāϤā§
- āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§āϰ āĻĒā§āϰāĻā§āϰāĻŋāϝāĻŧāĻž: āϞāĻŽā§āĻŦāĻž, āĻĒā§āϰ⧠āĻāĻŦāĻ āĻĒā§āϰāĻžāϝāĻŧ āĻ āύā§āĻā§āĻŽāĻŋāĻ, āϏāĻžāϰā§āĻāĻŋāĻāĻžāϞ āĻāĻļā§āϰā§āĻāĻžāϰ āĻŽāϤā§
- āĻā§āϰāĻžāύā§āϏāĻāĻžāϰā§āϏ āĻĒā§āϰāĻā§āϰāĻŋāϝāĻŧāĻž: āĻĒā§āϰāĻĨāĻŽ āĻā§āĻĄāĻŧāĻž āĻĒāĻžāĻāĻāϰā§āϰ āĻāύā§āϝ āϞāĻŽā§āĻŦāĻž āĻāĻŦāĻ āϧāĻžāϰāĻŖāĻāĻžāϰ⧠āĻĻāĻŋāĻ
- āĻāĻā§āĻāϤāϰ āĻāϰā§āĻāĻŋāĻā§āϞāĻžāϰ āĻĻāĻŋāĻ: āĻāĻĒāϰā§āϰ āĻĻāĻŋāĻā§ āĻāĻŦāĻ āĻĒāĻŋāĻāύ⧠āύāĻŋāϰā§āĻĻā§āĻļāĻŋāϤ
- āύāĻŋāĻŽā§āύāϤāϰ āĻ āϰā§āϧāĻžāĻāĻļ: āĻĻā§āĻŦāĻŋāϤā§āϝāĻŧ āĻĒāĻžāĻāĻāϰā§āϰ āϏāĻžāĻĨā§ āϏāĻāϝā§āĻā§āϤāĻŋāϰ āĻāύā§āϝ
- āĻāĻĒāϰā§āϰ āĻāĻļā§āϰā§āĻāĻžāϰ āĻāĻžāĻāĻ: āĻ āύā§āϝāĻžāύā§āϝ āĻŦāĻā§āώāĻ āĻāĻļā§āϰā§āĻāĻžāϰ āĻā§āϝāĻŧā§ āĻāĻā§āϰ
Other features
- T1 has a relatively small vertebral body
- T1 has an uncinate process
- T1 has broad and thick laminae that provide a strong structure for the attachment of muscles and ligaments
- T1 has short and stout pedicles that connect the vertebral body to the transverse processes
- T1 āĻāϰ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§āϰ āĻĻā§āĻš āϤā§āϞāύāĻžāĻŽā§āϞāĻāĻāĻžāĻŦā§ āĻā§āĻ
- T1 āĻāϰ āĻāĻāĻāĻŋ āĻ āĻĒā§āϰāĻāϞāĻŋāϤ āĻĒā§āϰāĻā§āϰāĻŋāϝāĻŧāĻž āϰāϝāĻŧā§āĻā§
- T1 āĻāϰ āĻĒā§āϰāĻļāϏā§āϤ āĻāĻŦāĻ āĻĒā§āϰ⧠āϏā§āϤāϰ āϰāϝāĻŧā§āĻā§ āϝāĻž āĻĒā§āĻļā§ āĻāĻŦāĻ āϞāĻŋāĻāĻžāĻŽā§āύā§āĻā§āϰ āϏāĻāϝā§āĻā§āϤāĻŋāϰ āĻāύā§āϝ āĻāĻāĻāĻŋ āĻļāĻā§āϤāĻŋāĻļāĻžāϞ⧠āĻāĻžāĻ āĻžāĻŽā§ āĻĒā§āϰāĻĻāĻžāύ āĻāϰā§
- T1 āĻāϰ āĻā§āĻ āĻāĻŦāĻ āĻŽā§āĻāĻž āĻĒā§āĻĄāĻŋāĻā§āϞ āϰāϝāĻŧā§āĻā§ āϝāĻž āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§āϰ āĻĻā§āĻšāĻā§ āĻā§āϰāĻžāύā§āϏāĻāĻžāϰā§āϏ āĻĒā§āϰāĻā§āϰāĻŋāϝāĻŧāĻžāϰ āϏāĻžāĻĨā§ āϏāĻāϝā§āĻā§āϤ āĻāϰā§āĨ¤
Function
T1 is the uppermost vertebra in the thoracic spine, located immediately below the seventh cervical vertebra (C7). The thoracic spine is the middle section of your spine, starting at the base of your neck and ending at the bottom of your ribs.Â
T1 āĻšāϞ āĻŦāĻā§āώāĻāϏā§āĻĨāĻŋāϰ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§āϰ āĻāĻĒāϰā§āϰ āĻāĻļā§āϰā§āĻāĻž, āϝāĻž āϏāĻĒā§āϤāĻŽ āϏāĻžāϰā§āĻāĻŋāĻāĻžāϞ āĻāĻļā§āϰā§āĻāĻžāϰ (C7) āĻ āĻŋāĻ āύā§āĻā§ āĻ
āĻŦāϏā§āĻĨāĻŋāϤāĨ¤ āĻŦāĻā§āώāĻāϏā§āĻĨāĻŋāϰ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄ āĻšāϞ āĻāĻĒāύāĻžāϰ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§āϰ āĻŽāϧā§āϝāĻŦāϰā§āϤ⧠āĻ
āĻāĻļ, āϝāĻž āĻāĻĒāύāĻžāϰ āĻāĻžāĻĄāĻŧā§āϰ āĻā§āĻĄāĻŧāĻž āĻĨā§āĻā§ āĻļā§āϰ⧠āĻšāϝāĻŧā§ āĻāĻĒāύāĻžāϰ āĻĒāĻžāĻāĻāϰā§āϰ āύā§āĻā§ āĻļā§āώ āĻšāϝāĻŧāĨ¤

Lumber Vertebra L1 in Anatomy of Backbone
The L1 vertebra is the top most vertebra in the lumbar spine. It’s the smallest and most superior of the lumbar vertebrae.
L1 āĻāĻļā§āϰā§āĻāĻž āĻšāϞ āĻāĻāĻŋāĻĻā§āĻļā§āϝāĻŧ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§āϰ āĻļā§āϰā§āώāϤāĻŽ āĻāĻļā§āϰā§āĻāĻžāĨ¤ āĻāĻāĻŋ āĻāĻāĻŋāĻĻā§āĻļā§āϝāĻŧ āĻāĻļā§āϰā§āĻāĻžāϰ āĻŽāϧā§āϝ⧠āϏāĻŦāĻā§āϝāĻŧā§ āĻā§āĻ āĻāĻŦāĻ āϏāĻŦāĻā§āϝāĻŧā§ āĻāĻā§āĻāϤāϰāĨ¤
Function
Supports the upper body’s weight, Connects the thoracic and lumbar vertebrae, and Contains part of the spinal cord.
āĻļāϰā§āϰā§āϰ āĻāĻĒāϰā§āϰ āĻāĻāύāĻā§ āϏāĻŽāϰā§āĻĨāύ āĻāϰā§, āĻŦāĻā§āώ āĻāĻŦāĻ āĻāĻāĻŋāĻĻā§āĻļā§āϝāĻŧ āĻāĻļā§āϰā§āĻāĻžāĻā§ āϏāĻāϝā§āĻā§āϤ āĻāϰ⧠āĻāĻŦāĻ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§āϰ āĻ āĻāĻļ āϧāĻžāϰāĻŖ āĻāϰā§āĨ¤
Structure
- Has a large, cylindrical vertebral body that makes up most of its mass
- Has a vertebral arch that’s a thin bony ring attached to the back of the vertebral body
- Has intervertebral discs between it and the vertebrae below it
- Has facet joints with adjacent vertebrae that allow for movement and stability
- Has a vertebral foramen that’s a central opening through which the spinal cord passes
- āĻāĻāĻāĻŋ āĻŦā§āĻšā§, āύāϞāĻžāĻāĻžāϰ āĻāĻļā§āϰā§āĻāĻžāϝā§āĻā§āϤ āĻĻā§āĻš āϰāϝāĻŧā§āĻā§ āϝāĻž āĻāϰ āĻāϰā§āϰ āĻŦā§āĻļāĻŋāϰāĻāĻžāĻ āĻ āĻāĻļ āϤā§āϰāĻŋ āĻāϰā§
- āĻāĻāĻāĻŋ āĻāĻļā§āϰā§āĻāĻžāϝā§āĻā§āϤ āĻāĻŋāϞāĻžāύ āϰāϝāĻŧā§āĻā§ āϝāĻž āĻāĻļā§āϰā§āĻāĻžāϰ āĻĻā§āĻšā§āϰ āĻĒāĻŋāĻāύ⧠āϏāĻāϝā§āĻā§āϤ āĻāĻāĻāĻŋ āĻĒāĻžāϤāϞāĻž āĻšāĻžāĻĄāĻŧā§āϰ āĻŦāϞāϝāĻŧ
- āĻāϰ āĻāĻŦāĻ āύā§āĻā§āϰ āĻāĻļā§āϰā§āĻāĻžāϰ āĻŽāϧā§āϝ⧠āĻāύā§āϤāĻāĻāĻžāϰā§āĻāĻŋāĻŦā§āϰāĻžāϞ āĻĄāĻŋāϏā§āĻ āϰāϝāĻŧā§āĻā§
- āϏāĻāϞāĻā§āύ āĻāĻļā§āϰā§āĻāĻžāϰ āϏāĻžāĻĨā§ āĻĒāĻžāϰā§āĻļā§āĻŦāϝā§āĻā§āϤ āĻāϝāĻŧā§āύā§āĻ āϰāϝāĻŧā§āĻā§ āϝāĻž āύāĻĄāĻŧāĻžāĻāĻĄāĻŧāĻž āĻāĻŦāĻ āϏā§āĻĨāĻŋāϤāĻŋāĻļā§āϞāϤāĻž āĻŦāĻāĻžāϝāĻŧ āϰāĻžāĻā§
- āĻāĻāĻāĻŋ āĻāĻļā§āϰā§āĻāĻžāϰ āĻāĻšā§āĻŦāϰ āϰāϝāĻŧā§āĻā§ āϝāĻž āĻāĻāĻāĻŋ āĻā§āύā§āĻĻā§āϰā§āϝāĻŧ āĻā§āϞāĻž āĻ āĻāĻļ āϝāĻžāϰ āĻŽāϧā§āϝ āĻĻāĻŋāϝāĻŧā§ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§āϰ āĻāϰā§āĻĄ āϝāĻžāϝāĻŧ
Injuries
- Injuries to the L1 vertebra can affect hip flexion, cause paraplegia, loss of bowel/bladder control, and/or numbness in the legs
- Conditions affecting the L1 to L5 region of the back usually cause symptoms that are felt in the hips, legs, and feet
- L1 āĻāĻļā§āϰā§āĻāĻžāϰ āĻāĻāĻžāϤā§āϰ āĻĢāϞ⧠āύāĻŋāϤāĻŽā§āĻŦā§āϰ āύāĻŽāύ āĻĒā§āϰāĻāĻžāĻŦāĻŋāϤ āĻšāϤ⧠āĻĒāĻžāϰā§, āĻĒā§āϝāĻžāϰāĻžāĻĒā§āϞā§āĻāĻŋāϝāĻŧāĻž āĻšāϤ⧠āĻĒāĻžāϰā§, āĻ āύā§āϤā§āϰ/āĻŽā§āϤā§āϰāĻžāĻļāϝāĻŧā§āϰ āύāĻŋāϝāĻŧāύā§āϤā§āϰāĻŖ āĻšāĻžāϰāĻžāύ⧠āĻāĻŦāĻ/āĻ āĻĨāĻŦāĻž āĻĒāĻžāϝāĻŧā§ āĻ āϏāĻžāĻĄāĻŧāϤāĻž āĻĻā§āĻāĻž āĻĻāĻŋāϤ⧠āĻĒāĻžāϰā§
-  āĻĒāĻŋāĻ ā§āϰ L1 āĻĨā§āĻā§ L5 āĻ āĻā§āĻāϞāĻā§ āĻĒā§āϰāĻāĻžāĻŦāĻŋāϤ āĻāϰ⧠āĻāĻŽāύ āĻ āĻŦāϏā§āĻĨāĻžāĻā§āϞāĻŋ āϏāĻžāϧāĻžāϰāĻŖāϤ āύāĻŋāϤāĻŽā§āĻŦ, āĻĒāĻž āĻāĻŦāĻ āĻĒāĻžāϝāĻŧā§ āĻ āύā§āĻā§āϤ āϞāĻā§āώāĻŖāĻā§āϞāĻŋāϰ āĻāĻžāϰāĻŖ āĻšāϝāĻŧāĨ¤
Intervertebral Disc in Anatomy of Backbone
It is a cushion of fibrocartilage and the principal joint between two vertebrae in the spinal column. There are 23 discs in the human spine: 6 in the cervical region (neck), 12 in the thoracic region (middle back), and 5 in the lumbar region (lower back).
āĻāĻāĻŋ āĻĢāĻžāĻāĻŦā§āϰā§āĻāĻžāϰāĻāĻŋāϞā§āĻā§āϰ āĻāĻāĻāĻŋ āĻā§āĻļāύ āĻāĻŦāĻ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§āϰ āĻāϞāĻžāĻŽā§ āĻĻā§āĻāĻŋ āĻāĻļā§āϰā§āĻāĻžāϰ āĻŽāϧā§āϝ⧠āĻĒā§āϰāϧāĻžāύ āĻāϝāĻŧā§āύā§āĻāĨ¤ āĻŽāĻžāύā§āώā§āϰ āĻŽā§āϰā§āĻĻāĻŖā§āĻĄā§ 23āĻāĻŋ āĻĄāĻŋāϏā§āĻ āϰāϝāĻŧā§āĻā§: 6āĻāĻŋ āϏāĻžāϰā§āĻāĻŋāĻāĻžāϞ āĻ āĻā§āĻāϞ⧠(āĻāĻžāĻĄāĻŧ), 12āĻāĻŋ āĻĨā§āϰāĻžāϏāĻŋāĻ āĻ āĻā§āĻāϞ⧠(āĻŽāϧā§āϝ āĻĒāĻŋāĻ ā§), āĻāĻŦāĻ 5āĻāĻŋ āĻāĻāĻŋāĻĻā§āĻļā§āϝāĻŧ āĻ āĻā§āĻāϞ⧠(āĻĒāĻŋāĻ ā§āϰ āύā§āĻā§)āĨ¤

Sacrum in Anatomy of Backbone
The large, triangle-shaped bone in the lower spine that forms part of the pelvis. It is made of 5 fused bones of the spine. The fused bones are 5 sacral vertebrae and they are S1, S2, S3, S4, and S5.
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Coccyx in Anatomy of Backbone
The small bone at the bottom of the spine. It is made up of 3-5 fused bones. Also called tailbone.
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Axial Cross-Section of the Spinal Cord in Anatomy of Backbone

Central Canal of the Spinal Cord in Anatomy of Backbone
The central canal of the spinal cord is a narrow, fluid-filled channel that runs through the center of the spinal cord, carrying CSF and extending from the fourth ventricle of the brain down to the conus medullaris, essentially acting as a conduit to nourish the spinal cord’s central tissues; it is lined with ependymal cells and is considered part of the ventricular system of the brain.
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Key points about the central canal:
- Location: Situated within the gray commissure of the spinal cord, which connects the left and right sides of the spinal cord.
- Function: Primarily transports cerebrospinal fluid to the center of the spinal cord, providing nutrients and cushioning it from impact.
- Origin: Develops from the lumen of the neural tube during embryonic development.
- Other names: Spinal foramen, ependymal canal.
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Causes of Intervertebral Disc Degenaration in Anatomy of Backbone
Intervertebral Disc āĻ āϧāĻāĻĒāϤāύā§āϰ āĻāĻžāϰāύ āϏāĻŽā§āĻš:
Intervertebral disc degeneration is primarily caused by a combination of factors including aging, genetics, repetitive stress, injuries, obesity, smoking, and poor posture, which all contribute to the gradual breakdown of the discs’ structural components, leading to decreased shock absorption and potential pain.
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Key factors causing disc degeneration:
- Natural aging:As we age, the discs naturally lose water content, becoming less resilient and more prone to degeneration.
- Genetics:Some individuals have genetic predispositions that affect the quality of the disc tissue, making them more susceptible to degeneration.
- Mechanical stress:Repetitive heavy lifting, awkward lifting postures, and prolonged sitting can put excessive strain on the discs.
- Acute injuries:Traumatic events like falls or sudden impact can cause direct damage to the discs.
- Obesity:Excess weight puts additional pressure on the spine, contributing to disc degeneration.
- Smoking:Nicotine can impair blood flow to the discs, hindering their ability to repair themselves.
- Poor posture:Maintaining poor posture consistently can place uneven stress on the discs.
- Inadequate nutrition:Deficiencies in essential nutrients like vitamin D may affect disc health.
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How disc degeneration occurs:
- Loss of water content:As we age, the nucleus pulposus (the gel-like center of the disc) loses its water content, making it less able to absorb shock.
- Tears in the annulus fibrosus:The outer fibrous ring of the disc can develop tears due to excessive strain, allowing the nucleus pulposus to bulge out.
- Degradation of collagen fibers:The collagen fibers within the disc can break down, reducing the disc’s structural integrity.
- Endplate changes:The cartilage-like endplates that cover the discs can become calcified, restricting nutrient supply to the disc
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Causes of Vertebral Fracture in Anatomy of Backbone
Vertebral fractures can occur due to a number of causes, including osteoporosis, trauma, tumors, and infections.
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Osteoporosis
- The most common cause of vertebral fractures, especially in women over 50
- A disease that causes bones to become fragile
- Bones lose calcium and other minerals with age
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Trauma
- The second most common cause of vertebral fractures
- Can occur from a fall, forceful jump, car accident, or other event that stresses the spine
- Chance fractures are caused by a strong force pulling the vertebrae apart
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Tumors
- Can weaken the vertebrae to the point of fracture
- Metastatic cancer that starts in another part of the body can spread to the bones in the spine
- Tumors that start in the spine, such as multiple myeloma
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Infections
- Bacterial infections can attack the spine, causing spinal discs to decay and vertebrae to weaken or fracture
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Other causes chemotherapy, long-term steroid use, hyperthyroidism, and radiation therapy.
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