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Microelectrode
Microelectrode An electrode made of a filament so hair-thin that it can penetrate a single cell, such as a nerve cell, and deliver to or receive from the cell a minute amount of electrical current.
RELATED TERMS--------------------------------------
Cell
Fundamental structural unit of all life. The cell consists primarily of an outer plasma membrane, which separates it from the environment; the genetic material (DNA), which encodes heritable information for the maintainance of life; and the cytoplasm, a heterogeneous assemblage of ions, molecules, and fluid.
Nerve
Tissue that conveys sensation, temperature, position information to the brain.
SIMILAR TERMS--------------------------------------
Micrainin
Micrainin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): aspirin; meprobamate.
Micro-k
Micro-k is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): potassium chloride.
Micro-k 10
Micro-k 10 is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): potassium chloride.
Micro-k ls
Micro-k ls is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): potassium chloride.
Microalbumin
Small amounts of protein in the urine that cannot be detected by the usual "dipstick" test done for routine urinanalysis testing for other reasons. Specialized dipsticks, or urine collections over a period of 12-24 hours, are used to measure the amount of microalbumin. If there is persistent microalbumin over several repeated tests at different times, the risk of diabetic nephropathy and macrovascular disease are both higher.
Microaneurysm
A small swelling that forms on the side of tiny blood vessels. These small swellings may break and bleed into nearby tissue. People with diabetes sometimes get microaneurysms in the retina of the eye.
Microangiopathy
See: Angiopathy.
Microbe
Microscopic organism, especially one that transmits a disease.
Microbiology
The study of living microbes, including bacteria, protozoa and molds.
Microcannula
A hair-thin glass tube so small that it can penetrate a single cell and deliver a minute drop of a liquid substance to the cell.
Microcephaly
A small skull with small cranial capacity. Usually indicates mental retardation.
Microcomedo
The first stage of comedo formation; a comedo so small that it can be seen only with a microscope.
Microcyst
A tiny cyst, frequently of such dimensions that a magnifying lens or microscope is required for observation.
Microderm
Microderm is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): chlorhexidine gluconate.
Microelectrodes
Electrodes with an extremely small tip, used in a voltage clamp or other apparatus to stimulate or record bioelectric potentials of single cells intracellularly or extracellularly.
Microencephaly
Having an abnormally small brain.
Microgestin fe 1-20
Microgestin fe 1-20 is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): ethinyl estradiol; norethindrone acetate.
Microgestin fe 1.5-30
Microgestin fe 1.5-30 is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): ethinyl estradiol; norethindrone acetate.
Micrographia
A change in handwriting with the script becoming smaller and more cramped.
Microhepatia
A small liver.
Microlite
Microlite is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): technetium tc-99m albumin colloid kit.
Micromelia
A birth defect in which arms or legs are abnormally short.
Micronase
Micronase is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): glyburide.
Micronor
Micronor is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): norethindrone.
Micronutrient
Vitamins and minerals that have no caloric value and little direct impact on hormonal response.
Microorganism
An organism that can be seen only under a microscope. Categories of microorganisms include Algae, Bacteria, Fungi, Protozoa, Viruses, or Subviral Agents. Also referred to as microbe.
Micropenis
A birth defect in which the penis is extremely small. The maximum stretched length is not greater than .5 standard deviation units (SDU) below the mean for age, and possibly as small as 5.0 SDU below. The diameter is correspondingly small, with extreme hypoplasia of the corpora cavernosa. As compared with a micropenis, the average adult penis's stretched length is 6.6 inches (16.7 cm), with a standard deviation of 0.77 inches ([1.95 cm) (Money, Lehne, and Pierre-Jerome, 1984) an exceptionally small penis that resembles the clitoris in size. A micropenis may carry the urethral tube or may be hypospadiac. Typically, it is formed mostly of skin, the body (corpora cavernosa) of the penis being hypoplastic. The condition is also known as microphallus or penile agenesis.
Microphallus
See micropenis.
Microphthalmus
A congenital problem in which the eye(s) is (are) smaller than normal. Vision is often reduced because other problems present within such an eye. No treatment is available.
Micropsia
The visual perception that objects are smaller than they actually are.
Microscope
A microscope (Greek: micron = small and scopos = aim) is an instrument for viewing objects that are too small to be seen by the naked or unaided eye. The science of investigating small objects using such an instrument is called microscopy, and the term microscopic means minute or very small, not easily visible with the unaided eye. In other words, requiring a microscope to examine.
Microscopy
Investigation of minute objects by means of a microscope.
Microspectrophotometry (MSP)
A procedure that involves the passage of a narrow measuring beam through the outer segments of individual photoreceptors to measure absorbance spectra in excised retinas.
Microsul
Microsul is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): sulfamethizole.
Microsurgery
Precise, delicate surgery performed to unblock Fallopian tubes or to reverse a vasectomy or tubal ligation.
Microvascular Disease
Disease of the smallest blood vessels that sometimes occurs when a person has had diabetes for a long time. The walls of the vessels become abnormally thick but weak, and therefore they bleed, leak protein, and slow the flow of blood through the body. Then some cells, for example, the ones in the center of the eye, may not get enough blood and may be damaged.
Microzide
Microzide is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): hydrochlorothiazide.
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Menstruation
In women, the periodic (monthly) bloody discharge from the uterus and vagina approximately two weeks after ovulation.
Mercantile paraphilia
One of a group of paraphilias characterized by triumph wrested developmentally from sexuoerotic tragedy by means of a strategy that incorporates sinful lust into the lovemap on the condition that it be traded, bartered, or purchased and paid for, not freely exchanged, since it irrevocably defiles saintly love.
Metabolite
In the body, a substance that is produced by the body's own chemistries.
Metamorphosis
A striking change in appearance, form, or substance.
Microcannula
A hair-thin glass tube so small that it can penetrate a single cell and deliver a minute drop of a liquid substance to the cell.
Microelectrode
Micropenis
A birth defect in which the penis is extremely small. The maximum stretched length is not greater than .5 standard deviation units (SDU) below the mean for age, and possibly as small as 5.0 SDU below. The diameter is correspondingly small, with extreme hypoplasia of the corpora cavernosa. As compared with a micropenis, the average adult penis's stretched length is 6.6 inches (16.7 cm), with a standard deviation of 0.77 inches ([1.95 cm) (Money, Lehne, and Pierre-Jerome, 1984) an exceptionally small penis that resembles the clitoris in size. A micropenis may carry the urethral tube or may be hypospadiac. Typically, it is formed mostly of skin, the body (corpora cavernosa) of the penis being hypoplastic. The condition is also known as microphallus or penile agenesis.
Microphallus
See micropenis.
MIS
Müllerian (duct) inhibiting substance. It is produced by the fetal testis, and its function is to vestigiate the primordial Müllerian ducts, thus preventing the development of a uterus and fallopian tubes in the male.
Miscegenation
Interbreeding of races; in U.S. usage, interbreeding of, in particular, white and black. Up until the late 1960s mixed race marriages were not permitted in some of the United States due to the miscegenation laws.
Mixophilia
A paraphilia of the solicitational/ allurative type in which sexuoerotic arousal and facilitation or attainment of orgasm are responsive to, and contingent on watching others engaging in sexual activity, including sexual intercourse [from Greek, skopein, to view + -philia]. the condition in which a person is dependent on looking at sexual organs and watching their coital performance in order to obtain erotic arousal and facilitate and achieve orgasm. It is not surreptitious, as in voyeurism. The reciprocal paraphilic condition is sometimes also referred to as scoptophilia; or by its own name.
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