The arbor vitae lies in the center of the cerebellum and is critical in the coordination of the arms, legs and any actions requiring hand-eye coordination. The arbor vitae is made of white matter that transmits information throughout the brain.Continue Reading
The arbor vitae is made up of pink tinted myelinated axons that transmit nerve impulses. The myelin sheaths that cover the axons give the arbor vitae its pink tint from protein and fatty materials. If damage occurs to the myelin sheaths, an individual can end up contracting multiple sclerosis or other diseases. Other issues that can arise in the arbor vitae include cerebellar hemorrhage from tumors and infection from pathogens that lead to ataxia.
The deep cerebellar and the fastigial nuclei are located inside the arbor vitae, as are the emboliform-globose and dentate nuclei. These structures lead to the efferent projections in the cerebellum. The cerebellum sits below the rest of the brain and looks like a separate structure; its surface of parallel groves looks quite different from the irregular convolutions of the cerebral cortex. The cerebellum is composed of a continuous layer of tissue that is tightly folded like an accordion.
The term arbor vitae is Latin for “tree of life,” and is so named due to its tree-like appearance. The tree species Aborvitae was introduced to Europe by French explorers and was known for being able to cure scurvy by making tea from its bark and leaves. In 1558, it obtained its name based on its medicinal properties.Learn more about Nerves
The cerebellum regulates movement, posture and balance. Some neurobiologists also believe that the cerebellum plays a part in cognition and language because it coordinates the movement of the lips and other organs of speech.Full Answer >
New York University states that the effects of a lack of oxygen to the brain depend on severity but include difficulty paying attention, poor judgement, poor coordination, intense emotions and drowsiness. In more severe cases, the effects include seizures, loss of consciousness and difficulty breathing. If the brain goes without oxygen for more than four minutes, brain cells begin to die, and a further lack of oxygen can lead to death.Full Answer >
The sciatic nerve originates in the lower spine with nerve roots that exit the spinal cord, and it extends down the back of the body from the legs to the toes, notes Spine-Health.com. It exits the spinal cord through gaps in the bones found in the lower spine.Full Answer >
According to chronic pain specialist Dr. Blair Lamb, the sensation of legs or arms falling asleep is usually the result of nerve entrapment or neuropathy. While the condition is often no cause for concern, it can also indicate a stroke, multiple sclerosis, hyperventilation, anxiety, vitamin deficiencies or anemia. Ultimately, many different conditions can combine to cause paresthesia, or the feeling of “pins and needles” associated with a limb falling asleep.Full Answer >