What nerves do C2 C3 affect?
C1, C2, and C3 (the first three cervical nerves) help control the head and neck, including movements forward, backward, and to the sides. The C2 dermatome handles sensation for the upper part of the head, and the C3 dermatome covers the side of the face and back of the head. (C1 does not have a dermatome.)
What are the symptoms of a pinched nerve at C2?
If the spinal cord becomes compressed at the C2 level, it can cause pain, tingling, numbness, and/or weakness in the arms or legs, loss of bowel and/or bladder control, and other problems. Severe cases of spinal cord injury at C2 can be fatal because breathing and other critical body functions may be impaired or stop.
What nerves are affected by c3 C4 C5?
Branches of the C3, C4, and C5 spinal nerves form the phrenic nerve that innervates the diaphragm, enabling breathing. Within the spinal canal of each of these motion segments, the spinal cord is protected by the vertebral bodies in front and vertebral arches at the back.
What nerves do c3 and C4 affect?
The transverse cervical nerve, of C2 and C3, projects posteriorly and wraps around anteriorly to supply the skin of the anterior cervical region. The supraclavicular nerve, of C3 and C4, descends from the posterior sternocleidomastoid and provides sensory information from the skin over the clavicle and shoulder.
What does C3 and C4 affect?
Generally, the higher up the level of the injury is to the spinal cord, the more severe the symptoms. For example, an injury to the neck, the first and second vertebrae in the spinal column (C1, C2), or the mid-cervical vertebrae (C3, C4, and C5) affects the respiratory muscles and the ability to breathe.
Where are C3, C4 and C5 spinal nerves located?
Branches of the C3, C4, and C5 spinal nerves form the phrenic nerve that innervates the diaphragm, enabling breathing. Within the spinal canal of each of these motion segments, the spinal cord is protected by the vertebral bodies in front and vertebral arches at the back. Watch Cervical Spinal Cord Anatomy Animation
Where are the C2 and C5 vertebras located?
This group of motion segments starts with the C2 vertebra near the top of the cervical spine and ends in the mid-cervical spine at the C5 vertebra. The C2-C5 motion segments contribute the most to the mid-range of motion during the neck’s forward and/or backward movements.
What causes pain in the C2-C5 spinal segment?
Blunt or penetrating trauma, or spondylosis in the C2-C5 motion segments may damage the phrenic nerve, causing breathing problems. See Neck Pain Causes Rarely, tumors and infections may affect the C2-C5 motion segments.
What are the parts of the body controlled by cervical nerves?
Below, the parts of the body controlled by cervical nerves are summarized. C1: Head and neck C2: Head and neck C3: Diaphragm C4: Upper body muscles (eg, deltoids, biceps) C5: Wrist extensors C6: Wrist extensors C7: Triceps C8: Hands