Copy of `Dorland's Medical Dictionary`

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Dorland's Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 31/12/2010, USA Words: 39128

suprapubic
(soo″prә-pu´bik) above the pubic arch.

suprapubic reflex
stroking the abdomen above Poupart ligament causes deviation of the linea alba toward the side that is stroked.

suprapubic region
hypogastric region.

suprarenal
(soo″prә-re´nәl) adrenal.

suprarenal gland
adrenal gland.

suprarenalectomy
(soo″prә-re″nәl-ek´tә-me) adrenalectomy.

suprascapular
(soo″prә-skap´u-lәr) above the scapula.

suprascapular artery
origin, thyrocervical trunk; branches, acromial branch; distribution, clavicular, deltoid, and scapular regions.

suprascapular nerve
origin, brachial plexus (C5–C6); distribution, descends through suprascapular and spinoglenoid notches and supplies acromioclavicular and shoulder joints, and supraspinatus and infraspinatus muscles; modality, motor and general sensory.

suprascapular vein
the vein that accompanies the suprascapular artery (sometimes as two veins that unite), opening usually into the external jugular, or occasionally into the subclavian vein.

suprascleral
(soo″prә-sklēr´әl) on the outer surface of the sclera.

suprasellar
(soo″prә-sel´әr) above the sella turcica.

suprasellar aneurysm
aneurysm of the internal carotid artery above the sella turcica.

supraspinal
(soo″prә-spi´nәl) above a spine.

supraspinatus muscle
supraspinous muscle: origin, supraspinous fossa of scapula; insertion, greater tubercle of humerus; innervation, suprascapular nerve; action, abducts humerus.

supraspinatus syndrome
tenderness over the supraspinatus tendon, a painful arc on movement of the arm, and a reversal of scapulohumeral rhythm.

supraspinous fossa
a depression above the spine of the scapula.

suprasternal
(soo″prә-stur´nәl) above the sternum.

suprasternal bones
ossicles occasionally occurring in the ligaments of the sternoclavicular joint.

suprasternal notch
jugular notch of sternum.

supratrochlear
(soo″prә-trok´le-әr) above a trochlea.

supratrochlear artery
origin,ophthalmic artery; branches, none; distribution, anterior scalp.

supratrochlear nerve
origin, frontal nerve, from ophthalmic nerve; distribution, leaves orbit at medial end of supraorbital margin and supplies the forehead and upper eyelid; modality, general sensory.

supratrochlear veins
two veins, each beginning in a venous plexus high up on the forehead and descending to the root of the nose, where it joins with the supraorbital vein to form the angular vein.

supraumbilical reflex
epigastric reflex.

supravaginal
(soo″prә-vaj´ĭ-nәl) outside or above a sheath. above the vagina.

supraventricular
(soo″prә-vәn-trik´u-lәr) situated or occurring above the ventricles, especially in an atrium or atrioventricular node.

supraventricular tachycardia
a combination of junctional tachycardia and atrial tachycardia.

supravergence
(soo″prә-vur´jәns) sursumvergence.

supraversion
(soo″prә-vur´zhәn) abnormal elongation of a tooth from its socket. sursumversion.

supravital stain
a stain introduced in living tissue or cells that have been removed from the body.

supreme intercostal artery
origin, costocervical trunk; branches, first and second posterior intercostal arteries; distribution, upper thoracic wall.

supreme nasal concha
a third thin bony plate occasionally found projecting from the inner wall of the ethmoidal labyrinth, above the two usually found.

suprofen
(soo-pro´fәn) a nonsteroidal antiinflammatory drug applied topically to the conjunctiva to inhibit miosis during ophthalmic surgery.

sura
(soo´rә) Latin word meaning calf; a term used in anatomy. adj., su´ral., adj.

sural arteries
origin, popliteal artery; branches, none; distribution, popliteal space, calf.

sural nerve
origin, medial sural cutaneous nerve and communicating branch of common peroneal nerve; branches, lateral dorsal cutaneous nerve and lateral calcaneal branches; distribution, skin on back of leg, and skin and joints on lateral side of heel and foot; modality, general sensory.

sural veins
veins that ascend with the sural arteries and drain blood from the calf into the popliteal vein.

suramin
(soo´rah-min) an antifilarial and antiprotozoal agent used as the hexasodium salt in prophylaxis and treatment of early stages of African trypanosomiasis and sometimes onchocerciasis. Because of its toxicity it must be used with care.

surface
(sur´fәs) the outer part or external aspect of a solid body; called also facies.

surface tension
tension or resistance that acts to preserve the integrity of a surface.

surface-active agent
a substance that exerts a change on the surface properties of a liquid, especially one that reduces its surface tension, such as a DETERGENT. Called also surfactant.

surfactant
(sәr-fak´tәnt) surface-active agent. In the physiology of the lungs, a mixture of phospholipids (primarily lecithin and sphingomyelin) that is secreted into the alveoli and air passages and reduces the surface tension of fluids in the lungs to make lung tissue more elastic. A synthetic surfactant is ...

surfer's nodules
hyperplastic, fibrosing granulomas occurring over bony prominences of the lower limbs and feet as a result of repeated trauma from kneeling on surfboards.

surgeon
(sur´jәn) a physician who specializes in the treatment of diseases, injuries, and deformities by manual or operative methods. the senior medical officer of a military unit.

surgeon assistant
(SA) a physician assistant who provides diagnosis and treatment of patients under supervision of a surgeon, being able to perform tasks such as history taking, physical examination, assisting at surgery, invasive diagnostic tests, and cardiopulmonary resuscitation. SAs are eligible for certification as Physi...

surgery
(sur´jәr-e) the branch of health science that treats diseases, injuries, and deformities by manual or operative methods. the place where operative procedures are performed. the work performed by a surgeon; see also operation and procedure. adj., sur´gical., adj. in Grea...

surgical abdomen
acute abdomen.

surgical anesthesia
the level of anesthesia at which surgery may safely be performed.

surgical asepsis
the exclusion of all microorganisms before they can enter an open surgical wound or contaminate a sterile field during surgery. Measures taken include sterilization of all instruments, drapes, and all other inanimate objects that may come in contact with the surgical wound. All personnel coming in contact with the sterile...

surgical emphysema
subcutaneous emphysema following surgery.

surgical field
operative field.

surgical microscope
operating m.

surgical neck of humerus
the constricted part of the humerus just below the tuberosities.

surgical pathology
the pathology of disease processes that are surgically accessible for diagnosis or treatment.

Surgicel
(sur´jĭ-sel) trademark for an absorbable knitted fabric prepared by controlled oxidation of cellulose; used as a hemostatic covering for surgical wounds to control hemorrhage when other conventional methods are impractical or ineffective.

Surmontil
(sur´mon-til) trademark for a preparation of trimipramine maleate, a tricyclic antidepressant.

surrogate
(sur´o-gәt) a substitute; a thing or person that takes the place of something or someone else, such as a drug used in place of another. surrogate mother. in psychoanalysis, the projection onto another person of one's mother or father image and unconscious and inappropriate response to t...

surrogate pregnancy
one in which a woman other than the female partner is artificially impregnated with the male partner's sperm. The resultant child represents only the male of the marital unit, and may be adopted by the female.

sursumduction
(sur″sәm-duk´shәn) the turning upward of a part, especially the eyes.

sursumvergence
(sur″sәm-vur´jәns) an upward movement, especially of an eye, where the other eye does not move.

sursumversion
(sur″sәm-vur´zhәn) an act of turning or directing upward, especially the simultaneous and equal upward turning of the eyes.

survival curve
a graph of the probability of survival versus time, commonly used to present the results of clinical trials, such as a graph of the fraction of patients surviving (until death, relapse, or some other defined endpoint) at each time after a certain therapeutic procedure.

susceptibility
(sә-sep″tĭ-bil´ĭ-te) the state of being susceptible. antibiotic susceptibility , antimicrobial susceptibility the vulnerability of a strain of a microorganism to being inhibited or killed by a given antibiotic or antimicrobial agent.

susceptible
(sә-sep´tĭ-bәl) readily affected or acted upon. not having immunity to an infectious disease and thus at risk of infection.

suspension
(sәs-pen´shәn) temporary cessation, as of pain or a vital process. a supporting from above, as in treatment where extremities are elevated with a traction device. a preparation of a finely divided, undissolved substance dispersed in a liquid vehicle. bladder neck su...

suspension colloid
lyophobic colloid.

suspension culture
a culture in which cells multiply while suspended in a suitable medium.

suspensoid
(sәs-pen´soid) lyophobic colloid.

suspensory
(sәs-pen´sor-e) serving to hold up a part. a ligament, bone, muscle, bandage, or sling for supporting a part.

suspensory ligament
(of lens)ciliary zonule. (of axilla) a layer ascending from the axillary fascia and ensheathing the pectoralis minor muscle. (of ovary) the portion of the broad ligament lateral to and above the ovary. (of breast) one of numerous fibrous processes extending from the body of the mammary gland ...

suspensory muscle of duodenum
a flat band of smooth muscle originating from the left crus of the diaphragm, and continuous with the muscular coat of the duodenum at its junction with the jejunum.

sustained rhythmic activity
the continuous generation of action potentials within the heart in the absence of artificial or external stimulation.

sustained ventricular tachycardia
ventricular tachycardia lasting more than 30 seconds leading to shock that can be fatal.

sustentacular cells
supporting cells.

sustentaculum
(sus″tәn-tak´u-lәm) Latin word meaning a support. a term used in anatomy. adj., sustentac´ular., adj.

sutilains
(soo´tĭ-lāns) proteolytic enzymes derived from a strain of Bacillus subtilis used for wound débridement.

Sutton disease
(sut´әn) halo nevus. periadenitis mucosa necrotica recurrens. granuloma fissuratum.

sutura
(soo-tu´rә) a type of joint in which the apposed bony surfaces are united by fibrous tissue, permitting no movement; found only between bones of the skull. Called also suture.

sutural bone
any of the variable and irregularly shaped bones in the sutures between the bones of the skull. Called also wormian bone.

sutural cataract
a congenital opacity of the lens affecting the Y-shaped sutures of the fetal membrane; it usually does not affect vision.

sutural ligament
a band of fibrous tissue between the opposed bones of a suture or immovable joint.

suture
(soo´chәr) sutura. a stitch or series of stitches made to secure apposition of the edges of a surgical or traumatic wound; used also as a verb to indicate application of such stitches. material used in closing a wound with stitches. adj., su´tural., adj.

svedberg
(sfed´bәrg) Svedberg unit.

Svedberg flotation unit
(Sf) a unit equal to 10−13 second used for expressing negative sedimentation coefficients of macromolecules that float rather than sink in a centrifuge, such as those of lipoproteins.

Svedberg unit
(S) a unit equal to 10−13 second used for expressing sedimentation coefficients of macromolecules.

swab
(swahb) a small pledget of cotton or gauze wrapped around the end of a slender wooden stick or wire for applying medications or obtaining specimens of secretions and other substances from body surfaces or orifices.

swage
(swāj) to shape metal by hammering or by adapting it to a die. to fuse, as suture material to the end of a suture needle.

swaged needle
a needle with no eye, having suture attached to a hollow end.

swallow syncope
fainting upon swallowing because a disorder of the vagus nerve interferes with atrioventricular conduction in the heart.

swallowing
(swahl´o-ing) the taking in of a substance through the mouth and pharynx into the esophagus, a combination of a voluntary act and a series of reflex actions. Once begun, the process operates automatically. Called also deglutition.

swallowing center
deglutition center.

swallowing reflex
palatal reflex.

swamp fever
mud fever (def. 1).

swan neck catheter
a catheter used in peritoneal dialysis, having its end bent around almost to a U shape to impede catheter migration or extrusion.

Swan-Ganz catheter
(swahn´ ganz´) a soft, flow-directed catheter with a balloon at the tip for measuring pulmonary arterial pressures, right atrial pressures, left atrial pressure, reflected left ventricular end-diastolic pressure, and cardiac output. It is introduced into an internal jugular vein or subclavian vein and is guided by blood flow ...

sweat
(swet) the salty fluid, consisting largely of water, excreted by the sweat glands to cool the skin and keep the body temperature at a constant level. In an environment with a high temperature, during strenuous exertion, or in times of unusual emotional stress, the sweat output of the body may be more than several liters...

sweat center
a nerve center in the anterior hypothalamus controlling sweating. any of several nerve centers in the medulla oblongata or spinal cord that exercise parasympathetic control over sweating. Called also sudorific center.

sweat duct
the duct that leads from the body of a sweat gland to the surface of the skin.

sweat gland
one of the glands that secrete sweat, found in the dermis or subcutaneous tissue, and opening by a duct on the surface of the body. There are two types, the apocrine and eccrine sweat glands. A sweat gland is innervated by cholinergic nerve fibers of the parasympathetic nervous system and can also be stimulated by the hormones epinep...