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Adduction
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Adduction"Movement of a limb toward the midline of the body. The opposite of adduction is abduction. An adductor muscle pulls toward the midline of the body. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together. From the Latin prefix ""ad"" meaning ""toward"" + ""ducere"" meaning ""to draw or lead"" = ""to draw toward."""
RELATED TERMS--------------------------------------
Adduction
"Movement of a limb toward the midline of the body. The opposite of adduction is abduction. An adductor muscle pulls toward the midline of the body. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together. From the Latin prefix ""ad"" meaning ""toward"" + ""ducere"" meaning ""to draw or lead"" = ""to draw toward."""
Abduction
In medicine, the movement of a limb away from the midline of the body. Abduction of both legs spreads the legs. The opposite of abduction is adduction. Adduction of the legs brings them together.
Muscle
Tissue made up of bundles of long, slender cells that contract when stimulated.
SIMILAR TERMS--------------------------------------
Adducted thumbs with mental retardation
"A syndrome with the following characteristic features:
Adductor muscle
"Any muscle that pulls a body part toward the midline. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together. The word ""adductor"" comes from the Latin prefix ""ad"" meaning ""toward"" + ""ducere"" meaning ""to draw or lead"" = ""to draw toward."" The opposite of ""adductor"" is ""abductor."" An adductor muscle opposes an abductor muscle."
Adductor spasmodic dysphonia
A disorder in which sudden muscle spasms cause the vocal folds (or vocal cords) to slam together. See: spasmodic dysphonia.
PREVIOUS AND NEXT TERMS--------------------------------------
ADD (attention deficit disorder)
"An inability to control behavior due to difficulty in processing neural stimuli. In November, 1998 the National Institutes of Health (NIH) issued a consensus report developed by a panel of experts. The panel concluded that:
Addiction, computer
See: Computer addiction.
Addisonian anemia
A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not produce the substance in the stomach that allows the body to absorb vitamin B12. This substance is called intrinsic factor (IF). Addisonian anemia, also called pernicious anemia (PA), is characterized by the presence in the blood of large, immature, nucleated cells (megaloblasts) that are forerunners of red blood cells. (Red blood cells, when mature, have no nucleus). It is thus a type of megaloblastic anemia.
Additive genetic effects
A mechanism of quantitative inheritance such that the combined effects of genetic alleles at two or more gene loci are equal to the sum of their individual effects.
Adducted thumbs with mental retardation
"A syndrome with the following characteristic features:
Adduction
Adductor muscle
"Any muscle that pulls a body part toward the midline. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together. The word ""adductor"" comes from the Latin prefix ""ad"" meaning ""toward"" + ""ducere"" meaning ""to draw or lead"" = ""to draw toward."" The opposite of ""adductor"" is ""abductor."" An adductor muscle opposes an abductor muscle."
Adductor spasmodic dysphonia
A disorder in which sudden muscle spasms cause the vocal folds (or vocal cords) to slam together. See: spasmodic dysphonia.
ADE
Adverse drug event. See: Adverse reaction.
Aden-
See: Adeno-.
Adenine (A)
"One member of the A-T (adenine-thymine) base pair in DNA. The other base pair in DNA is G-C (guanine-cytosine). Each base pair forms a ""rung of the DNA ladder."" A DNA nucleotide is made of a molecule of sugar, a molecule of phosphoric acid, and a molecule called a base. The bases are the ""letters"" that spell out the genetic code. In DNA, the code letters are A, T, G, and C, which stand for the chemicals adenine, thymine, guanine, and cytosine, respectively. In DNA base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine. Adenine is also one of the bases in RNA. There it always pairs with uracil (U). The base pairs in RNA are therefore A-U and G-C."
RELATED TERMS--------------------------------------
Adduction
"Movement of a limb toward the midline of the body. The opposite of adduction is abduction. An adductor muscle pulls toward the midline of the body. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together. From the Latin prefix ""ad"" meaning ""toward"" + ""ducere"" meaning ""to draw or lead"" = ""to draw toward."""
Abduction
In medicine, the movement of a limb away from the midline of the body. Abduction of both legs spreads the legs. The opposite of abduction is adduction. Adduction of the legs brings them together.
Muscle
Tissue made up of bundles of long, slender cells that contract when stimulated.
SIMILAR TERMS--------------------------------------
Adducted thumbs with mental retardation
"A syndrome with the following characteristic features:
Adductor muscle
"Any muscle that pulls a body part toward the midline. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together. The word ""adductor"" comes from the Latin prefix ""ad"" meaning ""toward"" + ""ducere"" meaning ""to draw or lead"" = ""to draw toward."" The opposite of ""adductor"" is ""abductor."" An adductor muscle opposes an abductor muscle."
Adductor spasmodic dysphonia
A disorder in which sudden muscle spasms cause the vocal folds (or vocal cords) to slam together. See: spasmodic dysphonia.
PREVIOUS AND NEXT TERMS--------------------------------------
ADD (attention deficit disorder)
"An inability to control behavior due to difficulty in processing neural stimuli. In November, 1998 the National Institutes of Health (NIH) issued a consensus report developed by a panel of experts. The panel concluded that:
Addiction, computer
See: Computer addiction.
Addisonian anemia
A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not produce the substance in the stomach that allows the body to absorb vitamin B12. This substance is called intrinsic factor (IF). Addisonian anemia, also called pernicious anemia (PA), is characterized by the presence in the blood of large, immature, nucleated cells (megaloblasts) that are forerunners of red blood cells. (Red blood cells, when mature, have no nucleus). It is thus a type of megaloblastic anemia.
Additive genetic effects
A mechanism of quantitative inheritance such that the combined effects of genetic alleles at two or more gene loci are equal to the sum of their individual effects.
Adducted thumbs with mental retardation
"A syndrome with the following characteristic features:
Adduction
Adductor muscle
"Any muscle that pulls a body part toward the midline. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together. The word ""adductor"" comes from the Latin prefix ""ad"" meaning ""toward"" + ""ducere"" meaning ""to draw or lead"" = ""to draw toward."" The opposite of ""adductor"" is ""abductor."" An adductor muscle opposes an abductor muscle."
Adductor spasmodic dysphonia
A disorder in which sudden muscle spasms cause the vocal folds (or vocal cords) to slam together. See: spasmodic dysphonia.
ADE
Adverse drug event. See: Adverse reaction.
Aden-
See: Adeno-.
Adenine (A)
"One member of the A-T (adenine-thymine) base pair in DNA. The other base pair in DNA is G-C (guanine-cytosine). Each base pair forms a ""rung of the DNA ladder."" A DNA nucleotide is made of a molecule of sugar, a molecule of phosphoric acid, and a molecule called a base. The bases are the ""letters"" that spell out the genetic code. In DNA, the code letters are A, T, G, and C, which stand for the chemicals adenine, thymine, guanine, and cytosine, respectively. In DNA base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine. Adenine is also one of the bases in RNA. There it always pairs with uracil (U). The base pairs in RNA are therefore A-U and G-C."
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This dictionary contains 19186 terms.
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