CTE is permanent brain damage caused by repeated traumatic brain injuries, such as concussions. A concussion is an injury that causes the brain to hit the skull. Brain tissue is damaged, causing symptoms such as a headache, dizziness, or ringing in your ears. A brain injury that does not ...
Although the apical organ has been described as a simple ‘brain’ by some [18], there is no indication that it serves to integrate information from other nerve networks or that it is homologous to bilaterian brains. High concentrations of neurons are also found near the mouth and tentacle ...
7 The short duration of selamectin activity in rabbits is believed to be due to its short half-life (approximately 1 day) after topical administration as compared with its duration in dogs (11.1 days) and cats (8.25 days). These results suggest that selamectin is more rapidly absorbed, ...