Etymology: L, crena, notch. the formation of notches or leaflike scalloped edges on an object. Red blood cells exposed to a hypertonic saline solution acquire a notched, shriveled surface as a result of the osmotic effect of the solution. They are then called crenated red blood cells. crenate, crenated, adj.
Occipital neuralgia is the neck/head pain that results from injury or irritation to the occipital nerves. It can be caused by trauma, such as a car accident, by a pinched nerve root in the neck (from arthritis, for example) or by âtightâ muscles at the back of the head that entrap the nerves.
HelloCustomer. A pain or a headache occurrring at the base of the head (whether after physical activity or otherwise) is usually due to stimulation of the occipital nerve. It is a type of tension headache.The commonest cause of an occipital headache is tension of the muscles of the back of the neck and lower scalp. pain or a headache occurrring at the base of the head (whether after physical activity or otherwise) is usually due to stimulation of the occipital nerve.