Currently viewing the category:
"Neuroscience"
Cognition is defined as; the mental action or process of acquiring knowledge and understanding through thought, experience, and the senses. As we age our cognitive ability declines naturally, however some individuals may experience a rate of decline much greater than expected. This is known as cognitive dysfunction.
Cognitive dysfunction is apparent in a number of species, including; humans, dogs and cats. In dogs, canine cognitive dysfunction (CCD) can be responsible for alterations in normal behaviour, for example, the dog may be less active or show changes in their social interactions with human family members.
Meninges
The meninges are a group of three membrane layers which wrap around the brain and central nervous system. The meninges consist of three layers (meninx), these include:
The Dura Mater The arachnoid membrane The Pia Mater
The primary function of these layers is to protect the central nervous system.
Fig. 1 The meninges surrounding [...]
Introduction
Compared to other tissues, the brain is extremely dependent on a stable and efficient blood supply. Despite making up only 2% of total body mass, the brain requires 15-20% of total cardiac output; this makes the brain extremely sensitive to hypoxia. Any hypoxic damage caused to the brain becomes irreversible after only a few [...]
