Not to be confused with the infraorbital groove, infraorbital canal, and infraorbital foramen. The lateral wall and the floor of the orbit are separated posteriorly by the inferior orbital fissure which transmits the zygomatic branch of the maxillary nerve, and the ascending branches from the pterygopalatine ganglion.he infraorbital vessels are found in the inferior orbital fissure, and travel down the infraorbital groove into the infraorbital canal and exit through the infraorbital foramen.
According to the Mayo Clinic, dehydration is what is known as a secondary headache: âa symptom of a disease that can activate the pain-sensitive nerves of the head.â Dehydration headaches occur when you lose a substantial part of the water and electrolytes that your body needs to perform normal functions.
Symptoms of moderate to severe dehydration include: 1  low blood pressure. 2  fainting. 3  severe muscle contractions in the arms, legs, stomach, and back. 4  convulsions. 5  a bloated stomach.6  heart failure. 7  sunken fontanelle-soft spot on a infants head.8  sunken dry eyes, with few or no tears.evere dehydration can cause death. The usual causes of dehydration are a lot of diarrhoea and vomiting. Dehydration can also occur if you do not eat or drink much during an illness or if you do not drink enough during or after strenuous exercise.