| Sacral | Sacral Nerves: Five pairs of CNS nerves that exit through the sacral foramen and sacral hiatus, and bring information in and out of the spinal cord. Much of their function relates to the sciatic nerve, and they bring information in from the skin sensory zones (dermatomes) of the heel, back of the legs, buttocks, and the pelvic floor. |
| Saliva | |
| Salivary | See Saliva. |
| Salmonella | |
| Salpingitis | See Pelvic Inflammatory Disease. |
| Saluretic | Substance increasing elimination of salts into the urine. |
| Saponin | |
| Saponins | See Saponin. |
| Saturated Fat | |
| Saturated Fats | See Saturated Fat. |
| Saturated Fatty Acid | |
| Saturated Fatty Acids | See Saturated Fatty Acid. |
| Scabies | |
| Scar Tissue | |
| SCC | Squamous Cell Carcinoma. |
| Schizophrenia | |
| Schwannoma | See Neurofibromas. |
| Schwannomas | See Neurofibromas. |
| Sciatic | |
| Sciatica | See Sciatic. |
| Scleroderma | |
| Scurvy | |
| Seatworm | See Pinworms. |
| Sebaceous | |
| Sebaceous Cyst | See Sebaceous. |
| Seborrhea | |
| Seborrheic | See Seborrhea. |
| Seborrheic Keratoses | |
| Sebum | |
| Secretagogue | Agent promoting secretion. |
| Secretolytic | Agent breaking down secretions. |
| Secretomotory | Stimulating secretion. |
| Sedative | |
| Seizure | |
| Seizures | See Seizure. |
| Selenium | |
| Self-Esteem | The extent to which and ways in which people view themselves. People who view themselves favorably have good self-esteems whereas people who view themselves negatively have poor self-esteems. Self-esteem affects a person's behavior dramatically. |
| Seminal Vesicles | |
| Senile Dementia | See Dementia. |
| Sepsis | |
| Septicemia | See Sepsis. |
| Septum | A membrane wall separating two or more cavities, such as the one between the nasal fossae and those separating the air sacs (alveoli) of the lungs. |
| Serotonin | |
| Serous Membrane | See Serous Membranes. |
| Serous Membranes | |
| Serum | The cell-free fluid of the bloodstream. It appears in a test tube after the blood clots and is often used in expressions relating to the levels of certain compounds in the blood stream. |
| Sex Hormone Binding Globulin | See SHBG. |
| Sex Hormone-Binding Globulin | See SHBG. |
| Sexual Neurasthenia | Psychogenic inhibition of sexual performance. |
| SFA | See Saturated Fatty Acid. |
| SFAs | See Saturated Fatty Acid. |
| SGOT | |
| SGPT | See SGOT. |
| SHBG | |
| Shingles | |
| Short Sighted | See Nearsightedness. |
| Short Term Memory | See Short-Term Memory. |
| Short-Term Memory | |
| Silicon | |
| Simple Carbohydrate | |
| Simple Carbohydrates | See Simple carbohydrate. |
| Sinus | See Sinuses. |
| Sinuses | |
| Sinusitis | |
| Sitz Bath | |
| Skeletal Muscle | See Striated Muscle. |
| Small Bowel | See Small Intestine. |
| Small Intestine | |
| Smooth Muscle | |
| SOD | See Superoxide Dismutase. |
| Sodium | |
| Soluble Fiber | See Dietary Fiber. |
| Soluble Fibers | See Dietary Fiber. |
| Somatization | |
| Soporific | Sleep-inducing agent. |
| Spasm | |
| Spherocytes | See Spherocytosis. |
| Spherocytosis | |
| Spina Bifida | |
| Spinal Tap | |
| Spleen | |
| Splenectomy | See Spleen. |
| Splenitis | |
| Splenomegaly | See Splenitis. |
| Spondylarthritis | Intervertebral arthritis. |
| Spondylitis | |
| Spontaneous Abortion | See Miscarriage. |
| SRI | Serotonin Reuptake Inhibitor. The result of this inhibition action is to maintain higher levels of serotonin. |
| Staging | |
| Staph | See Staphylococcus. |
| Staphylococcal | See Staphylococcus. |
| Staphylococcus | |
| Stasis | Static, atonic, unable to resolve or initiate change, resulting in lymphatic and venous stasis, congestion or stagnation. For example, an intestinal blockage. |
| Static Edema | Fluid accumulation in condition of confinement. |
| Statin | See Statins. |
| Statins | |
| Steatorrhea | |
| Stenocardia | Angina pectoris. |
| Stenosis | Usually referring to Esophageal or GI tract: Narrowing. |
| Steroid | |
| Steroids | See Steroid. |
| Sterol | See Sterols. |
| Sterols | |
| Stiff Man Syndrome | See Stiff Person Syndrome. |
| Stiff Person Syndrome | |
| Stimulant Laxative | |
| Stimulant Laxatives | See Stimulant Laxative. |
| Stitch | |
| Stomach | A hollow, muscular, J-shaped pouch located in the upper part of the abdomen to the left of the midline. The upper end (fundus) is large and dome-shaped; the area just below the fundus is called the body of the stomach. The fundus and the body are often referred to as the cardiac portion of the stomach. The lower (pyloric) portion curves downward and to the right and includes the antrum and the pylorus. The function of the stomach is to begin digestion by physically breaking down food received from the esophagus. The tissues of the stomach wall are composed of three types of muscle fibers: circular, longitudinal and oblique. These fibers create structural elasticity and contractibility, both of which are needed for digestion. The stomach mucosa contains cells which secrete hydrochloric acid and this in turn activates the other gastric enzymes pepsin and rennin. To protect itself from being destroyed by its own enzymes, the stomach’s mucous lining must constantly regenerate itself. |
| Stomachic | |
| Stomachics | See Stomachic. |
| Stomatitis | |
| Strangury | Painful, sporadic and drop-by-drop urination, caused by the presence of kidney stones, chronic inflammation such as interstitial cystitis, or urethral scar tissue. |
| Strep | See Streptococcus. |
| Streptococcus | |
| Stress Fracture | |
| Stress Fractures | See Stress Fracture. |
| Striated Muscle | |
| Stricture | |
| Stroke | |
| Stroke-Type Event | See Stroke. |
| Strongyloid | Nematode parasite. |
| Strongyloides stercoralis | |
| Strongyloidiasis | See Strongyloides stercoralis. |
| Struma | Goiter, any enlargement of a tissue. |
| Subacute | Having characteristics of both acute and chronic. This is the state in a disease when most of the aches and pains have subsided and you are likely to overdo things and not completely recover. The chest cold that lingers for weeks as a stubborn cough is a subacute condition, as is the tendonitis that lingers because you won't stop playing tennis long enough to completely heal. |
| Subareolar | See Nipple. |
| Subclinical | Pertaining to a disease or condition: Not manifesting characteristic clinical symptoms, that is, not detectable through examination and/or having no symptoms; the period of time when a potential disease is still potential, and a functional imbalance or tendency has not caused any organic disruption. Those years of poor digestion, heartburn, and the
systematic suppression of upper intestinal function by adrenalin stress have not yet become overt gastritis, ulcers, or IBS. |
| Subcutaneous | Below the surface of the skin. Subdermal: Below the surface of the skin, and below subcutaneous, but definitely higher up than the muscles. |
| Subdermal | See Subcutaneous. |
| Sublingual | Situated or administered under the tongue, for example sublingual glands or sublingual tablets. |
| Sublingually | See Sublingual. |
| Subungual | Beneath a fingernail or toenail. |
| Sulfite Sensitivity | |
| Superficial Fibromatosi | See Fibromas. |
| Superficial Fibromatosis | See Fibromas. |
| Superoxide Dismutase | |
| Sympathetic Nervous System | |
| Synaptic | |
| Syndrome | A medical condition characterized by a collection of related symptoms (what the patient feels) and signs (what a doctor can observe or measure). |
| Synergism | |
| Synergistic | |
| Synovial | See Synovium. |
| Synovial Fluid | |
| Synovial Sarcoma | |
| Synovium | |
| Synthetic T3-T4 Combination | Examples of T3-T4 combination thyroid hormone replacements include: Thyrolar or Liotrix. |
| Syphilis | |
| Systemic Sclerosis | See Scleroderma. |
| Systole | Contraction of the heart. |
| Systolic | |
