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Suntan
|
D055107 |
[An induced skin pigment (MELANIN) darkening after exposure to SUNLIGHT or ULTRAVIOLET RAYS. The degree of tanning depends on the intensity and duration of UV exposure, and genetic factors.
] |
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Superantigens
|
D018089 |
[Microbial antigens that have in common an extremely potent activating effect on T-cells that bear a specific variable region. Superantigens cross-link the variable region with class II MHC proteins regardless of the peptide binding in the T-cell receptor's pocket. The result is a transient expansion and subsequent death and anergy of the T-cells with the appropriate variable regions.
] |
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Superconductivity
|
D000072176 |
[Expulsion of a magnetic field
, The ability of an element or metallic alloy to allow the passage of ELECTRONS without ELECTRICAL RESISTANCE and expel MAGNETIC FIELDS below a certain threshold temperature called superconducting transition temperature.
] |
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Superego
|
D013475 |
[The component of the personality associated with ethics, standards, and self-criticism - the "conscience". It is derived mainly from identification with parents and parent substitutes.
] |
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Superfetation
|
D013476 |
[The FERTILIZATION of an OVUM that takes place when a FETUS is already present in the UTERUS. Superfetation results in an unusual PREGNANCY with fetuses of different ages and sizes developing in utero simultaneously.
] |
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Superficial Back Muscles
|
D064171 |
[The top layer of the back muscles whose function is to move the SCAPULA. This group of muscles consists of the trapezius, latissimus dorsi, rhomboid major, rhomboid minor and levator scapulae.
] |
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Superficial Musculoaponeurotic System
|
D000069259 |
[Layer between the superficial fat compartment and superficial facial muscles in the head and the neck.
] |
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Superinfection
|
D015163 |
[A frequent complication of drug therapy for microbial infection. It may result from opportunistic colonization following immunosuppression by the primary pathogen and can be influenced by the time interval between infections, microbial physiology, or host resistance. Experimental challenge and in vitro models are sometimes used in virulence and infectivity studies.
] |
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Superior Cervical Ganglion
|
D017783 |
[The largest and uppermost of the paravertebral sympathetic ganglia.
] |
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Superior Colliculi
|
D013477 |
[The anterior pair of the quadrigeminal bodies which coordinate the general behavioral orienting responses to visual stimuli, such as whole-body turning, and reaching.
] |
|
Superior Mesenteric Artery Syndrome
|
D013478 |
[DUODENAL OBSTRUCTION by the superior mesenteric artery (MESENTERIC ARTERY, SUPERIOR) which travels in the root of the MESENTERY and crosses over the DUODENUM. The syndrome is characterized by the dilated proximal duodenum and STOMACH, bloating, ABDOMINAL CRAMPS, and VOMITING. Often it is observed in patient with body casts after spinal surgery.
] |
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Superior Olivary Complex
|
D065832 |
[An auditory brainstem structure in the pontine tegmentum that contains several nuclei associated with auditory localization and is component of ascending and descending auditory pathways.
] |
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Superior Sagittal Sinus
|
D054063 |
[The long large endothelium-lined venous channel on the top outer surface of the brain. It receives blood from a vein in the nasal cavity, runs backwards, and gradually increases in size as blood drains from veins of the brain and the DURA MATER. Near the lower back of the CRANIUM, the superior sagittal sinus deviates to one side (usually the right) and continues on as one of the TRANSVERSE SINUSES.
] |
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Superior Vena Cava Syndrome
|
D013479 |
[A condition that occurs when the obstruction of the thin-walled SUPERIOR VENA CAVA interrupts blood flow from the head, upper extremities, and thorax to the RIGHT ATRIUM. Obstruction can be caused by NEOPLASMS; THROMBOSIS; ANEURYSM; or external compression. The syndrome is characterized by swelling and/or CYANOSIS of the face, neck, and upper arms.
] |
|
Supermarkets
|
D000085943 |
[Self-service retail markets selling groceries, fresh produce, meats and other foods.
] |
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Superovulation
|
D013480 |
[Occurrence or induction of release of more ova than are normally released at the same time in a given species. The term applies to both animals and humans.
] |
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Superoxide Dismutase
|
D013482 |
[An oxidoreductase that catalyzes the reaction between SUPEROXIDES and hydrogen to yield molecular oxygen and hydrogen peroxide. The enzyme protects the cell against dangerous levels of superoxide.
] |
|
Superoxide Dismutase-1
|
D000072105 |
[A superoxide dismutase (SOD1) that requires copper and zinc ions for its activity to destroy SUPEROXIDE FREE RADICALS within the CYTOPLASM. Mutations in the SOD1 gene are associated with AMYOTROPHIC LATERAL SCLEROSIS-1.
] |
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Superoxides
|
D013481 |
[Highly reactive compounds produced when oxygen is reduced by a single electron. In biological systems, they may be generated during the normal catalytic function of a number of enzymes and during the oxidation of hemoglobin to METHEMOGLOBIN. In living organisms, SUPEROXIDE DISMUTASE protects the cell from the deleterious effects of superoxides.
] |
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Superstitions
|
D013483 |
[A belief or practice which lacks adequate basis for proof; an embodiment of fear of the unknown, magic, and ignorance.
] |
