- 行业: Library & information science
- Number of terms: 152252
- Number of blossaries: 0
- Company Profile:
The National Library of Medicine (NLM), on the campus of the National Institutes of Health in Bethesda, Maryland, is the world's largest medical library. The Library collects materials and provides information and research services in all areas of biomedicine and health care.
1) Recurring thoracic pain or discomfort which occurs when a part of the heart does not receive enough blood; usually caused by exertion or excitement.
2) A disease marked by brief paroxysmal attacks of chest pain precipitated by deficient oxygenation of the heart muscles.
Industry:Medical
A malignant tumor composed of cells showing differentiation toward sebaceous epithelium. The tumor is solitary, firm, somewhat raised, more or less translucent, and covered with normal or slightly verrucose epidermis. It may be yellow or orange. The face and scalp are the commonest sites. The growth can be slow or rapid but metastasis is uncommon. Surgery cures most of the cases.
Industry:Medical
Blueness or pallor of the extremities usually associated with pain and numbness and caused by vasomotor disturbances (as in Raynaud's disease); specifically : a disorder of the arterioles of the exposed parts of the hands and feet involving abnormal contraction of the arteriolar walls intensified by exposure to cold and resulting in bluish mottled skin, chilling, and sweating of the affected parts.
Industry:Medical
1) Inability to execute complex coordinated movements resulting from lesions in the motor area of the cortex but involving no sensory impairment or paralysis.
2) Loss of ability to perform familiar, purposeful movements in the absence of paralysis or other neural sensorimotor impairment.
3) Loss or impairment of the ability to execute complex coordinated movements without impairment of the muscles or senses.
Industry:Medical
1) Any of a class of 20 molecules that are combined to form proteins in living things. The sequence of amino acids in a protein and hence protein function are determined by the genetic code.
2) Amino acids are a set of 20 different molecules used to build proteins. Proteins consist of one or more chains of amino acids called polypeptides. The sequence of the amino acid chain causes the polypeptide to fold into a shape that is biologically active. The amino acid sequences of proteins are encoded in the genes.
Industry:Medical
The strong tendon joining the muscles in the calf of the leg to the bone of the heel -- called also tendon of Achilles. Achilles, Greek mythological character. One of the most illustrious of warriors, Achilles was the offspring of a sea nymph who sought to achieve immortality for her son by dipping him in the river Styx in Hades. Holding Achilles by the heel, she left this one area unprotected. Later, in the Trojan War, he was fatally wounded when an arrow struck the very spot where he was vulnerable. Since classical times, the heel and Achilles have been commonly associated.
Industry:Medical
A chronic disease characterized by abnormal thickening and hardening of the arterial walls with resulting loss of elasticity.
Industry:Medical
