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| This glossary contains: 19186 medical terms |
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Sino-Atrial Node
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Sino-Atrial Node A part of the heart muscle, located next to the inlet from the Vena Cava, which is the "pacemaker" of the heart.
RELATED TERMS--------------------------------------
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Muscle
Tissue made up of bundles of long, slender cells that contract when stimulated.
SIMILAR TERMS--------------------------------------
Sinografin
Sinografin 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): diatrizoate meglumine; iodipamide meglumine.
PREVIOUS AND NEXT TERMS--------------------------------------
Stimulus-response theory
In psychology, the theory that human responsivity is determined by contingencies of reward and punishment in the external environment.
Subcutaneous
Below the skin.
Supramasculinize
To masculinize in excess.
Sympathetic nervous system
Pertaining to that part of the autonomic nervous system which usually prepares the organism to deal more effectively with a situation of strife or emergency, as in fight or flight, the functions of which contrast with or reciprocate those of the parasympathetic system Paradoxically, the sympathetic system is also responsible for the physiological phenomenon of orgasm and/or ejaculation, but not sexual arousal.
SA Node
See Sino-Atrial Node.
Sino-Atrial Node
Sinus rythm
A normal heart rythm being generated by the SA node.
Sinus tachycardia
A normal, but fast rythm being generated by the SA node. This is very different than the term Ventricular Tachycardia.
Superior
The anatomical term for "above". i.e. the head is superior to the shoulder. Typically used in humans only. See Cranial/Caudal/Inferior.
Aarskog-Scott syndrome
A syndrome of wide spaced eyes (ocular hypertelorism), front-facing (anteverted) nostrils, a broad upper lip, a malformed ("saddle-bag") scrotum, and laxity of the ligaments resulting in bending back of the knees (genu recurvatum), flat feet, and overly extensible fingers. There are X-linked and autosomal forms of the disease. The gene for the X-linked form has been mapped to chromosome band Xp11.21 and identified as the FGD1 gene. The disease is named for DJ Aarskog (1928-) and CI Scott, Jr. (1934-), Norwegian and American pediatricians, who described it in 1970 and 1971. It is also known as Aarskog syndrome, faciodigitogenital dysplasia, and faciogenital dysplasia.
Spontaneous abortion
A miscarriage, that is, any pregnancy that is not viable (the fetus cannot survive) or in which the fetus is born before the 20th week of pregnancy. Spontaneous abortion occurs in at least 15-20% of all recognized pregnancies and usually takes place before the 13th week of pregnancy. A spontaneous abortion is as opposed to an induced abortion. In a spontaneous abortion, it is purely accidental, that is spontaneous.
RELATED TERMS--------------------------------------
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Muscle
Tissue made up of bundles of long, slender cells that contract when stimulated.
SIMILAR TERMS--------------------------------------
Sinografin
Sinografin 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): diatrizoate meglumine; iodipamide meglumine.
PREVIOUS AND NEXT TERMS--------------------------------------
Stimulus-response theory
In psychology, the theory that human responsivity is determined by contingencies of reward and punishment in the external environment.
Subcutaneous
Below the skin.
Supramasculinize
To masculinize in excess.
Sympathetic nervous system
Pertaining to that part of the autonomic nervous system which usually prepares the organism to deal more effectively with a situation of strife or emergency, as in fight or flight, the functions of which contrast with or reciprocate those of the parasympathetic system Paradoxically, the sympathetic system is also responsible for the physiological phenomenon of orgasm and/or ejaculation, but not sexual arousal.
SA Node
See Sino-Atrial Node.
Sino-Atrial Node
Sinus rythm
A normal heart rythm being generated by the SA node.
Sinus tachycardia
A normal, but fast rythm being generated by the SA node. This is very different than the term Ventricular Tachycardia.
Superior
The anatomical term for "above". i.e. the head is superior to the shoulder. Typically used in humans only. See Cranial/Caudal/Inferior.
Aarskog-Scott syndrome
A syndrome of wide spaced eyes (ocular hypertelorism), front-facing (anteverted) nostrils, a broad upper lip, a malformed ("saddle-bag") scrotum, and laxity of the ligaments resulting in bending back of the knees (genu recurvatum), flat feet, and overly extensible fingers. There are X-linked and autosomal forms of the disease. The gene for the X-linked form has been mapped to chromosome band Xp11.21 and identified as the FGD1 gene. The disease is named for DJ Aarskog (1928-) and CI Scott, Jr. (1934-), Norwegian and American pediatricians, who described it in 1970 and 1971. It is also known as Aarskog syndrome, faciodigitogenital dysplasia, and faciogenital dysplasia.
Spontaneous abortion
A miscarriage, that is, any pregnancy that is not viable (the fetus cannot survive) or in which the fetus is born before the 20th week of pregnancy. Spontaneous abortion occurs in at least 15-20% of all recognized pregnancies and usually takes place before the 13th week of pregnancy. A spontaneous abortion is as opposed to an induced abortion. In a spontaneous abortion, it is purely accidental, that is spontaneous.
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This dictionary contains 19186 terms.
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