Nerves are the organs that make up the peripheral nervous system (PNS). They serve as information pipelines that allow the brain and spinal cord to communicate with other tissues and organs. Inside the nerves are the axon processes of sensory and motor neurons (nerve cells).

Blood cells travel through the circulatory system suspended in a yellowish fluid called plasma. Plasma is 90% water and contains nutrients, proteins, hormones, and waste products. Whole blood is a mixture of blood cells and plasma.

Overactive bladder syndrome is common. Symptoms include an urgent feeling to go to the toilet, going to the toilet frequently and sometimes leaking urine before you can get to the toilet (urge incontinence). Treatment with bladder training often cures the problem. Sometimes medication may be advised in addition to bladder training to relax the bladder.

The pain of ovulation can range from a mild twinge to severe discomfort and usually lasts from minutes to hours. It is generally felt on one side of the abdomen and may vary each month, depending on which ovary is releasing the egg during that cycle.

Try these tips from top fertility experts to increase the odds you'll be prego ASAP…that is, if you want to be. Take Prenatal Vitamins. ... Try to Time It. ... Skip the Lube. ... Cut Back on Caffeine. ... Don't Increase Your Exercise Routine. ... Go Easy on the Alcohol. ... Try to Chill Out.

Anaphylaxis is a severe, potentially life-threatening allergic reaction. It can occur within seconds or minutes of exposure to something you're allergic to, such as a peanut or the venom from a bee sting. The flood of chemicals released by your immune system during anaphylaxis can cause you to go into shock; your blood pressure drops suddenly and your airways narrow, blocking normal breathing. Signs and symptoms of anaphylaxis include a rapid, weak pulse, a skin rash, and nausea and vomiting. Common triggers of anaphylaxis include certain foods, some medications, insect venom and latex. Anaphylaxis requires an immediate trip to the emergency department and an injection of epinephrine. If anaphylaxis isn't treated right away, it can lead to unconsciousness or even death.

This device could prevent migraine headaches.

A new Harvard study claims a breakthrough that could lead to a new treatment of Type 1 diabetes. WSJ's Ron Winslow explains what it means on Lunch Break. Photo: Getty

Surgery is the only way to treat parathyroid disease (hyperparathyroidism). There are no medications or pills that work to cure or treat parathyroid problems or high calcium. The parathyroid tumor must be removed by a surgeon. As soon as the parathyroid tumor has been removed, you are cured! It is very likely this will change your life. If you have hyperparathyroidism you need to have parathyroid surgery. If you have an expert surgeon this operation should be very easy.

Blackheads, Cysts & Pimples

Sectioned Heart

A new report analyzing FDA-approved monoclonal antibodies (mAbs) produced by a select group of leading biotechnology companies shows that clinical development times – specifically the duration of Phase II and Phase III trials – are lengthening, while FDA review times have remained constant. The average time from investigational new drug (IND) filing to market was 6.7 years for 11 mABs approved between 1994 and 2003 but shot up to 8.3 years for 12 mAbs approved between 2004 and March 9, 2011, according to Deloitte Recap LLC’s analysis, Therapeutic Monoclonal Antibodies – Insights, Strategies and Data.

A deviated septum occurs when the thin wall (nasal septum) between your nasal passages is displaced to one side. In many people, the nasal septum is displaced — or deviated — making one nasal passage smaller. When a deviated septum is severe, it can block one side of your nose and reduce airflow, causing difficulty breathing. The additional exposure of a deviated septum to the drying effect of airflow through the nose may sometimes contribute to crusting or bleeding in certain individuals. Nasal obstruction can occur from a deviated nasal septum, from swelling of the tissues lining the nose, or from both. Treatment of nasal obstruction may include medications to reduce the swelling or nasal dilators that help open the nasal passages. To correct a deviated septum, surgery is necessary.

Magnetic resonance imaging (MRI) can be an important tool in the diagnosis of multiple sclerosis (MS). MRI can also be used to monitor the progression of the disease in people living with MS. How does it work? MRI uses very strong magnets, radio signals, and computer software to take 3-dimensional pictures of the inside of the body. Will I need contrast material? Maybe. Contrast material is a substance that temporarily changes the way imaging tools interact with the body. They are often used to visualize certain types of MS disease activity on the MRI. If your doctor thinks your scan requires this contrast material, you may get an injection before you get in the MRI machine. How long will it take? The time may vary based on the type of MRI. Be sure to discuss with your doctor in advance so he or she can provide you with exact timing. But don’t worry, you won’t have to stay still the whole time. The technician will let you know when they’re starting a new image.

Technically, there's no formal definition for a "Code", but doctors often use the term as slang for a cardiopulmonary arrest happening to a patient in a hospital or clinic, requiring a team of providers (sometimes called a "code team") to rush to the specific location and begin immediate resuscitative efforts.

An appendectomy (sometimes called appendisectomy or appendicectomy) is the surgical removal of the vermiform appendix. This procedure is normally performed as an emergency procedure, when the patient is suffering from acute appendicitis.

A glucagonoma is a rare tumor of the alpha cells of the pancreas that results in the overproduction of the hormone glucagon. Alpha cell tumors are commonly associated with glucagonoma syndrome, though similar symptoms are present in cases of pseudoglucagonoma syndrome in the absence of a glucagon-secreting tumor.

Temporary Anchorage Device (TAD) - Orthodontic Device, very impressive

Labyrinthitis is a mild, often self-limited condition characterized by vertigo, tinnitus, nausea, and a loss of balance. The disorder often follows a viral illness (eg, influenza). Labyrinthitis may also be caused by trauma, bacterial infection, allergies, benign tumors, and certain medications .

ADC was first identified early in the AIDS epidemic as a common and novel CNS syndrome.(4,5) The three components of the term, AIDS dementia complex embody central features of the condition. AIDS emphasizes its morbidity and poor prognosis, particularly when its severity is at stage 2 or greater (see Table 1), a severity comparable to other clinical AIDS-defining complications of HIV-1 infection. Dementia designates the acquired and persistent cognitive decline with preserved alertness that usually dominates the clinical presentation and determines its principal disability. Complex emphasizes that this disease not only impairs the intellect, but also concomitantly alters motor performance and, at times, behavior. This involvement of the nervous system beyond cognition is evidence of a wider involvement of the CNS than occurs in some other types of dementia such as Alzheimer's disease. Additionally, myelopathy may be an important, indeed predominating, aspect of ADC, and organic psychosis may also be a feature in a subset of patients (see Rheumatologic and Musculoskeletal Manifestations of HIV). These manifestations are therefore also encompassed within this term. By contrast, neither neuropathy nor functional psychiatric disturbance are included in ADC.