Why There Are Two Bones Sticking Out Behind My Neck at the Bottom

The two prominent bones you feel at the base of your neck are likely the spinous processes of the cervical vertebrae, specifically C7 (the seventh cervical vertebra) and T1 (the first thoracic vertebra). This article will explore these bones, their functions, and situations where you might feel them more distinctly.

Introduction to the Prominent Bones at the Base of Your Neck

The cervical vertebrae, also known as cervical vertebrae, are the bones in your neck that support your head and protect your spinal cord. C7 is the last vertebra of the cervical spine and T1 is the first vertebra of the thoracic spine. These vertebrae have a part called the spinous process, which is the bony projection that extends from the back of the vertebrae. These spinous processes serve as attachment points for muscles and ligaments, helping to maintain the structure and movement of the spine.

The C7 Vertebra: A Prominent Bone at the Neck's Base

C7 is particularly notable because it is the most prominent cervical vertebra. You may often feel it as a bony protrusion at the back of your neck. However, the prominence of C7 can vary from person to person, and it may be more noticeable in some individuals due to less muscle or fat covering it.

If you feel two distinct bumps at the base of your neck, it could be a combination of the C7 vertebra and the spinous process of the sixth cervical vertebra (C6) if there is less muscle or fat covering them. It's always a good idea to consult a healthcare professional if you have any pain, discomfort, or concerns about these bones, as underlying issues may be present.

When to Consult a Healthcare Professional

While the appearance of these bones in C7 and T1 is generally considered normal, there are instances when you should seek medical advice:

If the prominence is new or rapidly increasing. If you are experiencing pain, numbness, or tingling. If there are other unusual symptoms.

A healthcare professional can assess the situation and determine if there is an underlying issue. Common causes include postural problems, muscle tension, osteoporosis, or other medical conditions such as arthritis or spinal abnormalities.

The Cervicodorsal Junction: An Anatomical Anomaly

It is normal for C6 and C7 to stick out slightly under your skin, particularly in individuals during their youth. This is due to an anatomical structure known as the cervicodorsal junction, which occurs at the area where the neck (cervical spine) transitions to the upper back (thoracic spine).

This transition is an inflection point where the direction of curvature changes from inward (neck) to outward (shoulders). As a result, the skin stretches due to this change in curvature and the forward curve of the shoulders pulling tighter on the bones at the ends of C6 and C7. This can make the bones more prominent in some individuals.

Understanding the natural variations in spine anatomy can help alleviate concerns and provide peace of mind. However, if you have any persistent concerns or symptoms, always consult your healthcare provider for a thorough examination.

Conclusion

The two bones at the base of your neck are part of your cervical and thoracic vertebrae. While their prominence can vary, they are generally a normal part of your spinal anatomy. However, if you have any concerns or symptoms, seeking professional advice is essential for your health and well-being.