#Cervical spine anatomy skin

The width and depth of the calf odontoid process were larger than those in humans. The pig cervical spine is highly similar to the human cervical spine, except for two large transverse processes in the anterior regions ofC4C6.

1, 3 The C8 dermatome covers the pinky side of the hand and forearm. The atlantoaxial (C12) joint in pigs is similar to that in humans and could serve as a human substitute. C8 helps control the hands, such as finger flexion (handgrip).See All About the C6-C7 Spinal Motion Segment 1, 3 The C7 dermatome goes down the back of the arm and into the middle finger. C7 helps control the triceps (the large muscle on the back of the arm that straightens the elbow) and wrist extensor muscles.See All About the C5-C6 Spinal Motion Segment 1, 3 The C6 dermatome covers the thumb side of the hand and forearm. C6 helps control the wrist extensors (muscles that control wrist extension) and also provides some innervation to the biceps.With the frequency with which the cervical spine is involved in upper quarter dysfunction, as well as temporomandibular dysfunction, it. These joints have different anatomical and kinesiological considerations compared to the rest of the cervical spine. See All About the C2-C5 Spinal Motion Segments The upper cervical spine is made up of the Atlantooccipital Joint and the Atlantoaxis Joint. 1 The C5 dermatome covers the outer part of the upper arm down to about the elbow. C5 helps control the deltoids (which form the rounded contours of the shoulders) and the biceps (which allow bending of the elbow and rotation of the forearm).1 The C4 dermatome covers parts of the neck, shoulders, and upper part of arms. 1 C4 (along with C3 and C5) also helps power the diaphragm-the sheet of muscle that stretches to the bottom of the rib cage for breathing. C4 helps control upward shoulder movements.See The C1-C2 Vertebrae and Spinal Segment 1 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, C2, and C3 (the first three cervical nerves) help control the head and neck, including movements forward, backward, and to the sides.

While innervation can vary from person to person, some common patterns include: For example, the C5 dermatome is supplied by the C5 nerve root.Ĭervical spinal nerves, also called cervical nerves, provide functional control and sensation to different parts of the body based on the spinal level where they branch out from the spinal cord.

#Cervical spine anatomy skin

A dermatome is the area of sensory nerves near the skin that are supplied by a specific spinal nerve root.