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Varicose Veins
Varicose Veins Varicose veins -swollen, purple veins- are common in the legs and around the vaginal opening during late pregnancy. In most cases, varicose veins are caused by the increased pressure on the legs and the pelvic veins, and by the increased blood volume.
RELATED TERMS--------------------------------------
Veins
Blood vessels that carry blood from the arms, legs, head and body organs back to the heart.
Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.
SIMILAR TERMS--------------------------------------
Variance (statistics)
A measure of the amount by which a value differs from the mean.
Variant Angina
A type of angina that occurs at rest. Most often due to coronary spasm.
Varicella
Also known as chickenpox is a mild, highly contagious disease characterised by fever and itchy blisters all over the body. It is caused by the varicella zoster virus. It is very common in children but can affect people of all ages.
Varicella vaccine
The newest vaccine developed for children; the American Academy of Pediatrics recommends giving it between 12 and 14 months. Estimated to be 70 to 90 percent effective - if your child still comes down with chicken pox, it will be a mild case.
Varices
Stretched veins such as those that form in the esophagus from cirrhosis.
Varicocele
Dilated veins in the spermatic cord above or around the testis that can cause decreased sperm production on the affected side.
Varicose vein
An abnormally dilated vein.
Variola
Syn: smallpox.
Variolation
The historical practice of inducing immunity against smallpox by "scratching" the skin with the purulency from smallpox skin pustules. The first inoculation for smallpox is said to have been done in China about 1022 B.C.
PREVIOUS AND NEXT TERMS--------------------------------------
Valdecoxib
Valdecoxib is a prescription drug used in the treatment of osteoarthritis, rheumatoid arthritis, and painful menstruation and menstrual symptoms. It is classified as a nonsteroidal anti-inflammatory drug, or NSAID, and should not be taken by anyone allergic to these types of medications.
Venlafaxine hydrochloride
An inhibitor of serotonin and norepinephrine reuptake, unrelated chemically to any other antidepressants, that potentiates neurotransmitter activity in the central nervous system, used as an antidepressant.
Vasculitis
Inflammation throughout the body of the blood vessels.
Vitiligo
An autoimmune skin disorder caused by attack of the immune system on the pigment-producing cells within the skin. The loss of the cells responsible for skin color result in milky white patches on the skin surface.
Varicose Veins
Vasopressin
Hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules.
Vasoconstriction
A reduction in the diameter of small arteries (arterioles) which is caused by constriction of the smooth muscle fibres in the wall of the arteriole. Vasoconstriction is an important method of increasing the blood pressure. In local areas of damage it prevents blood loss by haemostasis. Local vasoconstriction can be caused by nerve impulses to the smooth muscle from the sympathetic nervous system, by locally released prostaglandins, serotonin and Epinephrine.
Von Willebrand's Disease
Von Willebrand's disease (vWD) is the most common hereditary coagulation abnormality described in humans. It arises from a qualitative or quantitative deficiency of von Willebrand factor (vWF), a multimeric protein that is required for platelet adhesion. It is known to affect humans and, in veterinary medicine, dogs.
Veterinary Medicine
Veterinary medicine is the application of medical diagnostic and therapeutic principles to companion, domestic, exotic, wildlife, and production animals.
Viagra
A substance that is used to treat erectile dysfunction. Viagra relaxes the smooth muscle of the penis to allow increased blood flow and erection. It belongs to the family of drugs called phosphodiesterase inhibitors. Also called sildenafil.
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