Introduction The spleen is an organ that is connected to the bloodstream and is counted among the lymphatic organs. It performs important tasks in the area of blood purification and immune defence. During the embryonic period, in unborn children, the spleen is involved in blood formation. If the spleen has to be removed, for example … What are the functions and tasks of the spleen?
How to support the function? If new symptoms such as anemia, a coagulation disorder or a palpably enlarged, pressure painful spleen become noticeable, the family doctor should always be consulted and an exact diagnosis and, if necessary, therapy of the underlying disease should be carried out. If there is an irritated or inflamed spleen, there … How to support the function? | What are the functions and tasks of the spleen?
Definition The optic nerve (med. Nervus opticus) is the strand of “nerve fibers” that transmits signals generated on the retina of the eye to the brain. Strictly speaking, the optic nerve, which doctors refer to as the nervus (Latin for nerve) opticus, is not actually a real nerve at all, but a “pathway” of the … The Optic Nerve
Anatomy of the eye Task of the optic nerve As with all nerves, the basic task of the optic nerve is to transmit electrical signals. The conversion of external light impressions into these electrical signals is done by a series of biochemical processes within the nerve cells of the retina. From there, they are then … Anatomy of the eye | The Optic Nerve
How is the optic nerve examined? During the examination of the optic nerve, the visual acuity, the field of vision and the fundus of the eye are usually checked. Visual acuity can be checked using standardized charts. These must be read from a distance of five meters, with the font size decreasing with each new … How is the optic nerve examined? | The Optic Nerve
Diseases of the optic nerve The most common cause of damage to the optic nerve is an accident or violent impact (traffic accidents or similar) in which the optic nerve is squeezed or pulled, for example when entering the skull. Bleeding into the orbit of the eye (e.g. after blows to the eye with a … Diseases of the optic nerve | The Optic Nerve
How does a damaged optic nerve regenerate? The injury of the optic nerve is a very sensitive topic in medicine, as the prognosis is usually unfortunately rather poor. Until now, it has been believed that nerves in general are hardly able to regenerate. There are various studies that show, especially in animal models, that partial … How does a damaged optic nerve regenerate? | The Optic Nerve
Conclusion The blood–brain barrier is therefore indispensable for the safety and functional maintenance of neurons. Sometimes it makes it difficult for drugs to be effective. If it does not function properly, it can lead to a number of neurological deficits. All articles in this series: Blood-Brain Barrier Structure Changes in the blood-brain barrier in multiple … Conclusion | Blood-Brain Barrier
Introduction The blood–brain barrier – many people have probably heard this term before and have a rough idea of what it is and what it serves. Because the name already gives it away, it is a barrier between the blood circulation and the brain, or more precisely the cerebrospinal fluid (also called nerve fluid, Latin: … Blood-Brain Barrier
Structure The blood–brain barrier consists quite simply of the walls of the small brain vessels, which are structured differently here than in the rest of the body. The endothelial cells play an important role. These are the cells that form the walls of the tiny blood vessels in the brain. These so-called capillary vessels have … Structure | Blood-Brain Barrier
Changes in the blood-brain barrier in multiple sclerosis Structural changes in the area of the blood–brain barrier lead to a loss of integrity (intactness of the blood-brain barrier), which promotes the development of various diseases, such as multiple sclerosis (MS). In multiple sclerosis, inflammatory demyelinating processes in the central nervous system (brain and spinal cord) … Changes in the blood-brain barrier in multiple sclerosis | Blood-Brain Barrier
