Spinal Nerve Distribution Diagram
The vertebrae are stacked on top of each other group into four regions.
Spinal nerve distribution diagram. It contains motor and sensory fibers and because it passes through the neck and thorax to the abdomen has the widest distribution in the body. The merck manual of medical information home edition reprinted in. A pinched nerve in the neck can cause symptoms of pain and muscle spasm due to arthritis or disc problems. Loss of bladder and bowel control can occur with severe injury anywhere along the spinal column.
The vagus nerve is the longest cranial nerve. June 1999 newsletter of the national centre for classification in health at univ. Peroneal nerve entrapment involves trapping of a peripheral nerve in a tunnel. It arises from the second and third cervical nerves winds around the posterior border of the sternocleidomastoideus and after perforating the deep fascia ascends upon that muscle beneath the platysma to the parotid gland where it divides into an anterior and a posterior branch.
This characteristic diamond shaped network behind the vertebral body in the epidural space dorsal to the posterior vertebral body cortex also known as anterior with respect to the spinal cord epidural space marked with l on the diagrams above constitutes the primary anastomotic connection between left and right segmental arteries of the same level. The areas of cutaneous distribution dermatomes of the three branches of the trigeminal nerve have sharp borders with relatively little overlap unlike dermatomes in the rest of the body which have considerable overlap. The man behind the scene par excellence. Pinched sciatic nerve symptoms often include pain weakness and altered feelings in the legs but you may not have any back pain.
The venous system holds the strings of understanding such vascular diseases affecting the spinal column as our imperfect knowledge has up to date painfully acquired. The spinal column or vertebral column extends from the skull to the pelvis and is made up of 33 individual bones termed vertebrae. Arm weakness pinched nerve or cervical radiculopathy usually results from neck arthritis or cervical osteoarthritis which forms bone spurs and decreases disc height thus reducing the opening through which a nerve travels causing a pinching of the nerve. An overview of peroneal nerve entrapment.
And cervical radiculopathy at emedicine sports medicine.
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