The limbs are extended and the neck is curved to opisthotonus.

Individuals with opisthotonus are quite challenging to position, especially in wheelchairs and car seats.

The patient suffered from opisthotonus- when the muscles are contracted without the patient's control.

These disorders are called tetanus and opisthotonus, by reason of the tension which accompanies them.

It is a fatal disease of ducklings causing opisthotonus and hepatitis.

Oculogyric crisis and opisthotonus are also very common.

Clinical signs include sudden death, opisthotonus, paresis, paralysis and enophthalmos.

Opisthotonus can be induced by any attempt at movement such as smiling, feeding, vocalization, or by seizure activity.

Symptoms include seizures, a "sawhorse" stance, and opisthotonus (rigid extension of all four limbs).

Opisthotonus with the presence of the risus sardonicus is also a symptom of strychnine poisoning.

Opisthotonus: Hyperextension.

These signs include opisthotonus, hyperaesthesia, abnormal behaviour, ataxia, head pressing, blindness, proprioceptive deficits, coma and seizures.

This is usually manifested with tonic stiffening, often amounting to opisthotonus, and often includes clenching of the jaw and hands.

These include lethargy, decreased feeding, hypotonia or hypertonia, a high-pitched cry, spasmodic torticollis, opisthotonus, setting sun sign, fever, seizures, and even death.

Opisthotonus in the neonate may be a symptom of meningitis, tetanus, severe kernicterus, or the rare Maple Syrup Urine Disease.

Symptoms of PEM include a profuse, but transient, diarrhea, listlessness, circling movements, star gazing or opisthotonus (head drawn back over neck), and muscle tremors.

From early infancy, symptoms of the condition include poor feeding, vomiting, dehydration, lethargy, hypotonia, seizures, hypoglycaemia, ketoacidosis, opisthotonus, pancreatitis, coma and neurological decline.

Opisthotonus can be produced experimentally in animals by transection of the midbrain (between the superior colliculus and the inferior colliculus), which results in severing all the corticoreticular fibers.

Faux and Padian suggested in 2007 that the live animal was suffering opisthotonus during its death throes, and that the pose is not the result of any post-mortem process at all.

Individuals with cerebral malaria frequently exhibit neurological symptoms, including abnormal posturing, nystagmus, conjugate gaze palsy (failure of the eyes to turn together in the same direction), opisthotonus, seizures, or coma.

Three types of abnormal posturing are decorticate posturing, with the arms flexed over the chest; decerebrate posturing, with the arms extended at the sides; and opisthotonus, in which the head and back are arched backward.

Opisthotonus or opisthotonos, from Greek roots, opistho meaning "behind" and tonos meaning "tension", is a state of severe hyperextension and spasticity in which an individual's head, neck and spinal column enter into a complete "bridging" or "arching" position.