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Contraction in Medical Dictionary

Blood pressure

... the arteries. It is produced primarily by the contraction of the heart muscle . It's measurement is ... is divided into systolic (pressure during contraction of the heart ) and diastolic (pressure during ... of nerve signals, control of muscle contraction , hormonal secretion, learning and memory, ...

Contraction

... contraction , uterine: The tightening and shortening of the uterine muscle s. During labor , contraction s accomplish two things: (1) they cause the ... : Extra systole , Premature Beats, Premature contraction , PVB (Premature Ventricular Beat), PVC ...

Ectopic heartbeat

... heart . Examples include premature ventricular contraction s and atria l premature contraction s. Ectopic Heartbeat Alternate Names : Extra systole , Premature Beats, Premature contraction , PVB (Premature Ventricular Beat), PVC ...

Fibrillation

... fibrillation A rapid, uncoordinated series of contraction s of some part of the heart muscle causing ... heart . Fibrillation Rapid, uncoordinated contraction s of the upper or the lower chambers of the ... faster fibrillation s, are rapid, uncoordinated contraction s of the atria l or ventricular muscle s that ...

Headache

... Common Causes Tension headache s are due to contraction (tightness) of the muscle s in your shoulder ... headache s are associated with muscle contraction s, but there is no proof that the contraction s cause the headache . The following are ...

Hiccup

... Hiccup s are contraction s of the inspiratory breathing muscle s that ... involuntary, spasm odic and coordinated. These contraction s are linked to a delayed and sudden closure of ... or hic cough , involuntary spasm odic contraction of the diaphragm followed by a sharp intake of ...

Hiccups

... Hiccups are contraction s of the inspiratory breathing muscle s that ... involuntary, spasm odic and coordinated. These contraction s are linked to a delayed and sudden closure of ... Hiccups are caused by a sudden involuntary contraction of the diaphragm , the large muscle that ...

Midwife

... Midwife ry. August 1999, 44(4):341-348. contraction s during labour may not feel as strong, so the ... determine how a baby is handling the stress of contraction s. The normal pattern is for the baby's heart beat to drop slightly during a contraction and then go back to normal after the ...

Movement

... large muscle groups), causing slow involuntary contraction s of the head, limbs, trunk, or neck. ... ... CLONUS - A form of movement marked by contraction s and relaxations of a muscle , occurring in ... paradise; paradox; paradoxical; paradoxical contraction ; paradoxical diaphragm phenomenon; paradoxical ...

Muscle

... is the result of spontaneous local muscle contraction s that are involuntary. Typically, these contraction s only affect individual muscle groups ... cramps are spontaneous, often painful muscle contraction s. MedicineNet Home MedTerms medical ...

Muscle spasm

... cramps are spontaneous, often painful muscle contraction s. MUSCLE SPASM S - Painful involuntary muscle contraction s. Often seen in skeletal muscle after acute ... Forums ] ... Muscle spasm s are involuntary contraction s of a muscle . People often have "tight" ...

Oxytocin

... A natural hormone that produces uterine contraction s. Ultrasound A procedure in which ... A natural hormone that produces uterine contraction s. Ultrasound ... The fall in oxytocin ... the hormone oxytocin which increases uterine contraction s and antidiuretic hormone ( ADH ) which ...

Peristalsis

... is a series of coordinated, rhythmic muscle contraction s that occur throughout the length of the ... Format ... Peristalsis The rhythmic contraction s that move material through the bowel . For ... coordinated, rhythmic wave of smooth muscle contraction that forces food through the digestive tract. ...

Pulse

... - The im pulse transmitted to arteries by contraction of the left ventricle of the heart . ... artery in the wrist. Pulse : The rhythmic contraction and expansion of an artery due to the surge of ... slower than 60 beats per minute. Braxton Hicks contraction s ...

Skeletal

... are those muscle s attached to bones and whose contraction s make those bones move. Skeletal limb ... to skeletal muscle s and causing spasm odic contraction s. Physician s should determine whether pain ... MUSCLE SPASM S - Painful involuntary muscle contraction s. Often seen in skeletal muscle after acute ...

Spasm

... Category: Pathology involuntary rigid muscle contraction , often persi stent and often accompanied by ... s used to treat this ailment? Spasm s are contraction s of the hands, thumbs, feet, or toes that are ... An airflow limitation due to contraction of smooth airway muscle . Muscle spasm ...

Systole

... : Extra systole , Premature Beats, Premature contraction , PVB (Premature Ventricular Beat), PVC (Premature Ventricular contraction ) Definition ... During systole , your ... . Atria l ectopic beats (AEB) refers to a contraction of the upper heart chamber which occurs before ...

Tension headache

... Tension headache s are associated with muscle contraction s, but there is no proof that the contraction s cause the headache . The following are ... years of age. Tension headache s are due to contraction (tightness) of the muscle s in your shoulder ...

Urge incontinence

... Urge incontinence : A sudden involuntary contraction of the muscular wall of the bladder causing ... urge incontinence is inappropriate bladder contraction s. Urge incontinence is an inability to hold ... need to urinate followed by instant bladder contraction and involuntary loss of urine . You don't have ...

Atria

... Atria l ectopic beats Definition Atria l ectopic beats (AEB) refers to a contraction of the upper heart chamber which occurs before it would be expected. ... Flutters, and the even faster fibrillation s, are rapid, uncoordinated contraction s of the atria l or ventricular muscle s that usually accompany heart ...

Atrial fibrillation

... be a risk for arterial embolism . A rapid, uncoordinated series of contraction s of some part of the heart muscle causing irregular heart beats. ... ablation (meaning tube-guided removal) is used to interrupt the abnormal contraction s in the heart , allowing normal heart beating to resume. Atrial ...

Atrial flutter

... Atrial flutter : Well- organ ized but overly rapid contraction s of the atrium of the heart (usually at a rate of 250-350 contraction s per minute). In atrial flutter , however, the ventricle s may beat ...

Blepharospasm

... Blepharospasm Dr Rob Hicks Blepharospasm is an involuntary contraction of one of the muscle s that controls the eyelids, causing them to close. ... of the eyes to work together properly ( strabismus ) Involuntary contraction s of neck muscle s ( cervical dystonia ) Severe armpit sweating ( ...

Bronchospasm

... bronchoconstriction. Bronchoconstriction An airflow limitation due to contraction of smooth airway muscle . For treating bronchospasm : Adults and ... a medication (usually methacholine) to see if it provokes a measurable contraction of the airway muscle s ( bronchospasm ). People with asthma are more ...

Cocaine

... like alcohol and caffeine . Examples include premature ventricular contraction s and atria l premature contraction s. Premature beats can be exacerbate d by the use of stimulants such as ...

Consciousness

... Was consciousness maintained during the seizure ? Was it a rhythmic contraction and relaxation of the face, arm, or leg muscle s? Was it a petit mal ... (staring episode or similar activity)? Were there prolonged muscle contraction s only? Immediately after a blow to the head, victims of concussion ...

Cramp

... Cramp Related Category: Pathology painful uncontrollable contraction of a muscle or group of muscle s. The type that results from cold , ... cramp s Definition: Muscle cramp s are involuntary and often painful contraction s of the muscle s which produce a hard, bulging muscle . MENSTRUAL ...

Diaphragm

... paradidymis; paradipsia; paradise; paradox; paradoxical; paradoxical contraction ; paradoxical diaphragm ... congenital hernia of the diaphragm ... important organ s of the body. or hic cough , involuntary spasm odic contraction of the diaphragm followed by a sharp intake of air, which is abruptly ...

Dysmenorrhea

... ] [ Search ] [ Ask the Doctor Forums ] ... Dysmenorrhea contraction -Causing Chemicals. Powerful chemicals known as prostaglandins and arachidonic acid caninduce uterine muscle contraction s. Prostaglandins also play a large role in the heavy bleeding that ...

Dysphonia

... Spasmodic dysphonia involves difficulty speaking because of repetitive contraction ( dystonia ) of the muscle s that control the vocal cords. Dysphonia : Spasmodic dysphonia is a disorder of the voice caused by abnormal contraction of the muscle s controlling the movement of the vocal cords. This ...

Dystonia

... is a neurological disorder causing involuntary, sustained muscle contraction s that result in repetitive movement s, twisting and abnormal postures. ... ... Dystonia : In dystonia there are sustained or persi stent contraction s of one or more muscle s. This leads to abnormal postures or writhing ...

Effacement

... of ruptured membrane s. Intermittent non-productive muscular contraction s of the womb ( uterus ) during pregnancy , most commonly in the last two months before full term. These contraction s are non-productive in the sense that they do not produce any flattening ...

Esophageal manometry

... esophageal manometry is to measure LES pressure and evaluate esophageal contraction s. This is important in the evaluation of swallowing disorders. ... manometry . This test measures the strength and pattern of muscle contraction s that occur in the esophagus . Manometry can detect weakness in the ...

Esophageal spasm

... Esophageal spasm s involve irregular contraction s of the muscle s in the esophagus , which is the tube that carries ... Esophageal spasm is defined as excessive, intensified, or uncoordinated contraction s of the smooth muscle of the esophagus . Achalasia Diffuse ...

Eschar

... escape; escape beat; escape-capture bigeminy; escape conditioning; escape contraction ; escape im pulse ; escape interval; escapement; escape phenomenon; escape reaction; escape rhythm; escape training; escape ventricular contraction ; eschalot; eschar ; ... North Asian tick-borne rickettsiosis: One of ...

Fainting

... multi ple puncture s to locate veins ... fainting severe muscle contraction s in the arms, legs, stomach , and back convulsions a bloated ... is the most important treatment . Because of the ineffective contraction s of the heart , the brain does not receive enough blood and oxygen . ...

Headaches

... to the medicine. Tension headache s are associated with muscle contraction s, but there is no proof that the contraction s cause the headache . The following are believed to contribute to ...

Incontinence

... Incontinence , urge: A sudden involuntary contraction of the muscular wall of the bladder causing urinary urgency, an ... paradidymis; paradipsia; paradise; paradox; paradoxical; paradoxical contraction ; paradoxical diaphragm phenomenon; paradoxical embolism ; paradoxical ...

Labor

... checked for changes from previous tests. Labor starts with regular contraction s of the uterus . The cervix thins out and dilates, or opens up, so the ... labor The process or period of childbirth , especially the muscular contraction s of giving birth . labyrinth ... labor atory testing of patient& ...

Mitral valve

... bulging of the mitral valve 's cusps backward into the atrium during the contraction of the heart . Mitral valve prolapse Definition: Mitral valve ... in which the "leaves" of the valve bulge into the heart chamber during contraction . When this occurs, a small amount of blood flows backward in the heart ...
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