Saltssynonym for electrolytes |
Saphrophitean organism living and feeding on dead and putrefying matter |
Sarcolemmamembrane surrounding a skeletal muscle fibre |
Satietythe satisfaction of appetite |
Scattered radiation (scatter)X-rays which have collided with matter, lost some energy and changed direction |
Screen filmX-ray film which is placed in a cassette containing intensifying screens prior to use |
Sebaceous |
SeborrhoeaExcessively oily skin, due to overproduction of sebum |
Sebuman oily substance produced by sebaceous glands in the skin |
Second filial generationoffspring produced by breeding from two individuals from the F1 generation; denoted as F2 in genetic notation |
Sensory fibresnerve fibres that carry impulses towards the central nervous system |
Septicaemiathe presence of pathogenic bacteria in the blood |
Serumthe fluid that separates from blood when it clots |
Sex chromosomesthe pair of chromosomes that determine the gender of an individual |
Sex-limited genegene that influences a characteristic seen in either the male or the female |
Sex-linked genegene carried on one of the sex chromosomes |
Sharpnessthe clarity of structures on a radiograph |
Shift to the leftincreased numbers of immature white blood cells circulating in the blood |
Sinuscavity within a bone or other tissue; paranasal sinuses are air-filled cavities in the bones of the face |
Smooth endoplasmic reticulumsystem of membrane-bound tubes and sacs that is involved in the synthesis of lipids |
Smooth musclemuscle tissue with no striations that is not under voluntary control |
Solubiliseda substance is dissolved in another |
Solutethe ionic component of an electrolyte |
Solventthe liquid component of an electrolyte |
Somatic cellsthe classification of every cell in the body except for the germ (reproductive) cells |
Somatic damagedamage to the tissues caused by X-rays which becomes apparent during the individual's lifetime |
Somatic motor nervenerve fibres that carry impulses from the central nervous system to a somatic structure |
Somatic sensory nervenerve fibres that carry impulses from a somatic structure to the central nervous system |
Somatic structuresstructures that lie in the skin and the musculoskeletal system |
Special sense organsorgans that have evolved to house the exteroreceptors of the body |
Sphinctermuscular ring that controls flow in and out of an organ |
Spinal nervesany of the pairs of nerves that arise from the spinal cord |
Stable tissuesRepair by regeneration is sometimes possible. |
Steatorrhoeathe presence of excess fat in faeces |
Stercobolinbile pigment found in faeces and responsible for the characteristic colour of faeces |
Sterilisationthe destruction of all microorganisms and their spores |
Striated musclemuscle fibres that have striations and are under voluntary control; also called skeletal muscle |
Subcutaneousunder the skin |
Subcutisthe deepest layer of skin composed mainly of adipose tissue |
Sudoriferous glandgland in the dermis of the skin that secretes sweat |
Sympathetic nervous systempart of the autonomic nervous system |
Syncopefainting |
Systolecontraction stage of the cardiac cycle. The term applies to both atrial and ventricular contraction. |