Vertigo | Blausen Medical

MARN El Salvador

MARN El Salvador

Project MUSE - From the Editor
Our thanks to all authors for their collegial acceptance of ideas, suggestions, and criticisms of the editorial team. Once again, we have a sample of the wealth and variety of research done in the field of Latin American geography.

The human ear is divided into three compartments: the outer ear, the middle ear and the inner ear. The inner ear contains the spiral-shaped cochlea, where sound waves translate into neuronal signals, and the vestibular complex, which contains the receptors of their sense of balance. The semicircular canals project from the posterior vestibule region and are responsible of the detection of head movements in three spatial planes. The anterior duct detects forward and backward movements. The posterior duct detects upward and downward movements. The lateral duct detects movement from left to right. Each channel contains a membranous semicircular duct where the angular impulse is detected. At the base of each duct is an expansion called the ampoule. Within the ampule, there are long stereocilia of pillar cells embedded in the dome, which exit into the endolymph. When the head is moved, the endolymph moves the dome and stimulates the stereocilia. The vertigo is the sensation of dizziness or the sudden sensation of dizziness without real movement. Benign paroxysmal positional vertigo, BPPV, is the most common cause of vertigo. BPPV develops when calcium carbonate crystals, or otoconia, are released and float into the posterior semicircular canal. These otoconia can slow or reverse the movement of the dome and send confusing messages to the brain about the position of the body. Vertigo can be associated with nausea, vomiting and instability. During vertigo episodes, it is recommended to stay still in a safe place until the feeling is gone. Vertigo can improve over time. Medications and physical therapy can help the symptoms of vertigo. It is important that you always check with your doctor before undertaking any therapy to treat this condition.