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Topic: Systole



  
 Cardiac cycle - Wikipedia, the free encyclopedia
This causes the pulmonic valve to open, allowing blood to eject into the pulmonary artery, to flow to the lungs to be oxygenated.
Cardiac Diastole is the period of time when the heart relaxes after contraction in preparation for refilling with circulating blood.
The second part of the "lub-dub" (the Second Heart Tone, or S
http://en.wikipedia.org/wiki/Diastole   (1327 words)

  
 Contraction-relaxation coupling: determination of the onset of diastole -- Solomon et al. 277 (1): 23 -- AJP - Heart ...
Left ventricular relaxation is dependent on afterload conditions during systole.
Time course of systolic loading is an important determinant of ventricular relaxation.
The dependence of the duration of systole and the rate of relaxation on loading conditions has been ascribed to changes in
http://ajpheart.physiology.org/cgi/content/full/277/1/H23   (2753 words)

  
 blood pressure - Columbia Encyclopedia article about blood pressure
The contraction of the heart (systole) causes the blood pressure to rise to its highest point, and relaxation of the heart (diastole) brings the pressure down to its lowest point.
The pressure in the arteries originates in the pumping action of the heart, and pressure waves can be felt at the wrist and at other points where arteries lie near the surface of the body (see pulse pulse, alternate expansion and contraction of artery walls as heart action varies blood volume within the arteries.
During diastole, or relaxation of the heart, blood volume in the arteries decreases and the walls contract, propelling the blood farther along the arterial pathway.
http://columbia.thefreedictionary.com/blood+pressure   (799 words)

  
 [No title]
One of the ways to get an idea of systole is by putting your hand on the carotid artery, or by feeling the apex beat.
During systole, these murmurs can abate simply b/c of equalization of pressures in the RV and LV.
This is an extreme end- stage condition in patients with large VSDs.
http://www.uhmc.sunysb.edu/som/students/2001/noteservice/h27.doc   (2278 words)

  
 Assessment of venous flow in normal and high-risk fetuses: Is the future now?
Forward flow during ventricular systole which is in response to the fall in atrial pressure that accompanies atrial relaxation and the downward displacement of the tricuspid or mitral annulus as the right and left ventricles contract;
Unlike the superior and inferior vena cavae in which there may be reverse flow during atrial systole, flow through the ductus venosus demonstrates continuous forward flow towards the heart.
While the effect of altered compliance or increased ‘stiffness’ is not possible to measure non-invasively in the human fetus, there are pathological models which may help to understand this phenomena.
http://www.obgyn.net/fm/articles/assessment_devore.htm   (6711 words)

  
 Left ventricular torsion is equal in mice and humans -- Henson et al. 278 (4): 1117 -- AJP - Heart and Circulatory ...
80% of systole was analyzed for all subjects.
Effect of acute human cardiac allograft rejection on left ventricular systolic torsion and diastolic recoil measured by intramyocardial markers.
ventricles behave similarly in terms of systolic ventricular
http://ajpheart.physiology.org/cgi/content/full/278/4/H1117   (4360 words)

  
 Changes in Effective Regurgitant Orifice Throughout Systole in Patients With Mitral Valve Prolapse : A Clinical Study ...
Changes in Effective Regurgitant Orifice Throughout Systole in Patients With Mitral Valve Prolapse : A Clinical Study Using the Proximal Isovelocity Surface Area Method -- Enriquez-Sarano et al.
changes of the effective regurgitant orifice during systole are
Changes in Effective Regurgitant Orifice Throughout Systole in Patients With Mitral Valve Prolapse
http://circ.ahajournals.org/cgi/content/abstract/92/10/2951   (652 words)

  
 Systole Corporation
The results are costly inefficiencies, delays, and significant problems with claim adjudication and reimbursement – contributing to less-than-ideal financial performance within the physician’s practice.
Systole will end the confusion and inefficiencies with the creation of its internet healthcare portal.
Our business centers around this portal, which will allow physicians direct access to all of their health insurance companies all at once, all in one place.
http://www.systole.us/product.htm   (232 words)

  
 [No title]
This increases LV systolic pressure, but because compensatory hypertrophy makes the LV stiffer, LV diastolic pressure also increases.
Aortic pressure Mean pressure is unaffected because of peripheral constriction.
This is a systolic flow murmur as opposed to the diastolic flow murmur seen in mitral insufficiency.
http://www.ursa.kcom.edu/Department/LectureNotes/Spring/ValvularDefect.doc   (735 words)

  
 Heart Info - Heart FAQ
The pumping function of the heart is divided into two phases: firstly, the ability of the heart to relax properly so that blood can return into the relaxed heart, and secondly, the ability to be actively pumped out to the body.
The most significant advances recently have been in our understanding of how the rest of the body adapts to the dysfunction of the heart in an attempt to correct and counteract these changes.
The issue in treatment is what are the relative percentages of diastolic or systolic dysfunction in each particular person with heart failure.
http://www.heartinfo.com/ms/nav/faq/main.html   (6001 words)

  
 Innocent Murmurs
This murmur can be distinguished from either a small ventricular septal defect or mitral regurgitation because in both of those conditions, the systolic murmur begins directly with the first heart sound.
Some simple procedures can clarify doubts; Valsalva, sustained hand grip exercise, and change in patient body position can help.
The most common continuous murmur is the venous hum, an innocent murmur audible in many children placed in the sitting position.
http://home.coqui.net/myrna/murmur.htm   (1285 words)

  
 FARA - Friedreich's Ataxia Research Alliance Education and Resources Beginners Primer
A diastolic murmur occurs when the heart muscle relaxes between beats.
The heart contracts and relaxes with each heartbeat.
Noninvasive assessment of systolic and diastolic function in 50 patients with Friedreich's ataxia.
http://www.faresearchalliance.org/education/beginners_primer.asp   (4390 words)

  
 Altered Left Ventricular Geometry Changes the Border Zone Temporal Distribution of Stress in an Experimental Model of ...
of systole such as the isovolumic phase of early systole?
blood flow, oxygen consumption, and mechanical systolic performance
Quantitative analysis of regional systolic function with left ventricular aneurysm.
http://circ.ahajournals.org/cgi/content/full/106/12_suppl_1/I-168   (4127 words)

  
 Systole definition - Medical Dictionary definitions of popular medical terms
For example, with a blood pressure of 120/80 ("120 over 80"), the systolic pressure is 120.
Systole definition - Medical Dictionary definitions of popular medical terms
The systolic pressure is specifically the maximum arterial pressure during contraction of the left ventricle of the heart.
http://www.medterms.com/script/main/art.asp?articlekey=16204   (278 words)

  
 systole - General Practice Notebook
Systole is defined differently according to how one observes the heart:
Ventricular systole is the power generating phase of the cardiac cycle during which the ventricle is contracting.
Oxbridge Solutions Ltd® is an independent company owned by the authors which does not receive income from any other organisation or individual.
http://www.gpnotebook.co.uk/cache/577437748.htm   (130 words)

  
 Citebase - Logarithmic growth of systole of arithmetic Riemann surfaces along congruence subgroups
P. Buser and P. Sarnak constructed Riemann surfaces whose systole behaves logarithmically in the genus.
The Fuchsian groups in their examples are principal congruence subgroups of a fixed arithmetic group with rational trace field.
[KS05] Katz, M.; Sabourau, S.:Entropy of systolically extremal surfaces and asymptotic bounds, Ergodic Theory and Dynamical Systems, to appear.
http://citebase.eprints.org/cgi-bin/citations?id=oai:arXiv.org:math/0505007   (816 words)

  
 PPT Slide
note: ventricular contraction is called ventricular systole and ventricular relaxation is called ventricular diastole
Systole: phase of cardiac contraction; during systole, pressure in a chamber is elevated and blood is ejected
note: atrial contraction is called atrial systole and ventricular contraction is called ventricular systole
http://www.cat.cc.md.us/~dhargrov/ppp/heart_intro/tsld054.htm   (85 words)

  
 . Echo/Doppler
Time systole and diastole by watching the heart as it contracts and relaxes.
Then watch the structures impinge upon and then occlude the outflow tract in systole.
When the color flow Doppler is used to look at blood flow in the same orientation as the view above, two high velocity jets can be identified originating from the same site in the left ventricle (LV) during systole.
http://www.vmth.ucdavis.edu/Cardio/cases/case5/echodopp.htm   (375 words)

  
 Pericardial Constriction
End-diastolic ventricular pressures and mean atrial pressures are elevated and nearly equal (within 5 mmHg), and end-diastolic volumes and consequently, stroke volume and cardiac output are reduced.
ventricular systole when the tricuspid valve is closed.
In these patients, cardiac volume is determined by the thickened, rigid pericardium, and the heart is unable to exceed this volume, which is attained near the end of the first third of diastole.
http://www.rjmatthewsmd.com/Definitions/pericardial_constriction.htm   (1787 words)

  
 Echo 214 Heart Sounds and Murmurs
occupies all of systole and continues as long as there is a sufficient pressure gradient across the incompetent orifice to generate a regurgitant flow
It is due to mitral insufficiency where the valve is competent during early systole but prolapses into the LA in late systole.
As ejection increases and decreases, so does the murmur
http://www.echo-web.com/asp/samples/sample4.asp   (125 words)

  
 Children's Mercy Hospitals and Clinics
Additionally, there are educational sessions for the participants to learn more about cardiac disorders.
Camp Systole is intended to provide a week of fun, and to allow participants to engage rewarding activities which promote personal development.
If you have any question or feedback please email the Webmaster.
http://www.childrens-mercy.org/mso/dept/lnav/view.asp?nav=450   (143 words)

  
 [No title]
Also, a chronic depolarization of myocytes (as in hyperkalemia, local ischemia, or digoxin toxicity) will inactivate some Na channels and make threshold less negative.
The decrease in intracellular Ca2+ causes muscle relaxation and the end of mechanical systole.
After the ARP, there is a relative refractory period (RRP), during which action potentials can be initiated, but with a slower Phase 0 and slower cell-to-cell conduction velocity.
http://www.med.unc.edu/wrkunits/2depts/pharm/phco202/06rlrCardiacElectrophysi.doc   (2172 words)

  
 Systole
Systole is the phased contraction of the chambers of the heart (especially the auricles[?] and ventricles[?]) to drive blood forward into the aorta, pulmonary artery[?] and to the rest of the body.
http://www.ebroadcast.com.au/lookup/encyclopedia/sy/Systole.html   (32 words)

  
 MSN Encarta - Search Results - systole
Systole, the contraction phase of the heart-pumping cycle of contraction and relaxation.
Systolic pressure, the higher number of a blood pressure reading, is the...
blood pressure measurement, description of systolic and diastolic pressures, cardiac cycle, hypertension, pulse, pumping action of heart
http://ca.encarta.msn.com/systole.html   (89 words)

  
 Isovolumetric contraction
Mechanically, ventricular systole is defined as the interval between the closing of the AV valves and the opening of the semilunar valves (aortic and pulmonary valves).
The atrioventricular (AV) valves close at the beginning of this phase.
Electrically, ventricular systole is defined as the interval between the QRS complex and the end of the T wave (the Q-T interval).
http://www-medlib.med.utah.edu/kw/pharm/2Isovolumetric_contraction.html   (179 words)

  
 Systole - Wikipedia, the free encyclopedia
Systole (literature) is a term used to describe entry into the imagination/surreal in a text.
This is a disambiguation page: a list of articles associated with the same title.
Systole (mathematics) is a term used in mathematics.
http://en.wikipedia.org/wiki/Systole   (107 words)

  
 Meaning of antibody,mercury,scalp,starch,-cyte,side reaction,systole,palmar,vaccinate,dicotyledon
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Explanation of antibody, mercury, scalp, starch, -cyte, side reaction, systole, palmar, vaccinate, dicotyledon
http://www.english-test.net/pcat/vocabulary/meanings/056/pcat-words.php   (1007 words)

  
 diastole --  Encyclopædia Britannica
Diastole is followed in the cardiac cycle by a period of contraction, or systole (q.v.), of the heart muscle.
Systole is most often used to adjust the rhythm of a line to achieve metrical regularity.
Lasting usually 0.3 to 0.4 second, ventricular systole is introduced by a very brief period of contraction, followed by the ejection phase, during which 80 to 100 cubic centimetres of blood...
http://www.britannica.com/eb/article-9030294   (432 words)

  
 Systole Corporation
Systole is dedicated to providing web based technology solutions that allow physicans to reconnect, with their patients and related industry constituents in order to improve the effectiveness, timeliness, and efficiency of patient care delivery.
Systole will become the premier and trusted provider of secure, validated and compliant communications between physicians and payers, providing unique value through real-time information management services.
http://www.systole.us   (60 words)

  
 MRI-determined left ventricular "crescent effect": a consequence of the slight deviation of contents of the pericardial ...
Comparison of systolic and diastolic contours for 2 representative normal subjects (subjects NL1 and NL2) and 1 patient with congenital absence of the pericardium (subject NP).
5), we conclude that contraction of the LV, evidenced by a systolic
was a consistent pattern of increase during early systole and
http://ajpheart.physiology.org/cgi/content/full/288/2/H848   (3960 words)

  
 Quantitative analysis of segmental wall motion throughout systole and diastole in the normal human left ventricle -- ...
systole with diastole, we found significant differences between paired
Quantitative analysis of segmental wall motion throughout systole and diastole in the normal human left ventricle -- Klausner et al.
Quantitative analysis of segmental wall motion throughout systole and diastole in the normal human left ventricle
http://circ.ahajournals.org/cgi/content/abstract/65/3/580   (331 words)

  
 Selected Encyclopedia of Heart Diseases and Conditions
Floppy valve, also known as "mitral valve prolapse," can be caused by diseases of the connective tissue such as Marfan syndrome.
The end result is that the ventricular volume is drastically reduced and a smaller amount of blood is ejected from the ventricle at a much higher speed.
The actual regurgitation sounds are blowing murmurs during systole (the pumping phase).
http://www.hhmi.org/biointeractive/vlabs/cardiology/content/cg/encyclopedia.html   (1751 words)

  
 The Heart
This should really be called "ventricular systole", but don't worry about this for GCSE.
This happens to both sides of the heart at about the same time.
The diagram shows systole in the left side of the heart.
http://www.purchon.com/biology/heart.htm   (625 words)

  
 systole
The term usually refers to ventricular systole, which lasts about 0.3 seconds.
http://www.lichtensteiger.de/systole.html   (35 words)

  
 Atrial Systole
Prior to atrial systole, blood has been flowing passively from the atrium into the ventricle through the open AV valve.
During atrial systole the atrium contracts and tops off the volume in the ventricle with only a small amount of blood.
Atrial contraction is complete before the ventricle begins to contract.
http://www-medlib.med.utah.edu/kw/pharm/1Atrial_Systole.html   (192 words)

  
 systole - definition of systole by the Free Online Dictionary, Thesaurus and Encyclopedia.
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
The rhythmic contraction of the heart, especially of the ventricles, by which blood is driven through the aorta and pulmonary artery after each dilation or diastole.
extrasystole - a premature systole resulting in a momentary cardiac arrhythmia
http://www.thefreedictionary.com/systole   (169 words)

  
 MedlinePlus Medical Encyclopedia: Heart murmurs and other sounds
The location where the health care provider hears the murmur loudest is also often noted.
For example, a presystolic murmur is heard just BEFORE systole and is usually caused by narrowing of the mitral or tricuspid valve (the valves between the atria and the ventricles).
Does the murmur occur in the resting stage (diastole) or contracting stage (systole)?
http://www.nlm.nih.gov/medlineplus/ency/article/003266.htm   (782 words)

  
 iugr.jpg
The umbilical artery is evaluated by measuring the blood flow velocity at peak systole (maximal contraction of the heart) and peak diastole (maximal relaxation of the heart).
When these fetuses are identified and management is altered by the physician, the fetal death rate as well as other severe complications are markedly reduced.
This is computed by measuring the peak of systole and then dividing it by the sum of measurements at peak systole and diastole.
http://www.fetal.com/Umbilart.htm   (685 words)

  
 BME 403: 10-31-97: Cardiac Anatomy
However, during tachycardia, diastasis is abbreviated (and during extreme tachycardia even the rapid filling phase may be encroached upon) atrial contraction is important to propelling blood into the ventricles in minimal time.
Only operates within a limited range of diastolic filling; at very high levels of diastolic filling, contraction becomes weaker Therefore, it is important for central venous pressure to remain within a limited range for normal function of the heart.
Over distention plays a role in congestive heart failure.
http://www.usc.edu/dept/biomed/bme403/Section_3/c28.html   (294 words)

  
 PSTC Paramedic Student - Learning Heart Sounds
systole (sis'-toe-lee) - to contract or eject blood, when used alone (not specifying ventricular or atrial), always means ventricular systole.
S4 - Forth heart sound or "atrial gallop".
presystole - (time) before systole, same as end diastole.
http://www.monroecc.edu/depts/pstc/backup/parashs.htm   (374 words)

  
 Cardiac Function: MR Evaluation in One Breath Hold with Real-time True Fast Imaging with Steady-State Precession -- Lee ...
of systole, as defined by the duration of forward flow, to estimate
section positions onto long-axis systolic and diastolic images.
with the onset of systole, and all short-axis section positions
http://radiology.rsnajnls.org/cgi/content/full/222/3/835   (7111 words)

  
 systole - OneLook Dictionary Search
systole : The On-line Medical Dictionary [home, info]
systole : Dorland's Illustrated Medical Dictionary [home, info]
Phrases that include systole: electrical systole, extra systole, electromechanical systole, relatif a la systole, systole extra, more...
http://www.onelook.com/?w=systole   (229 words)

  
 Online Etymology Dictionary
systole "contraction," from syn- "together" + stem related to stellein "to put, send" (see stall (n.1)).
http://www.etymonline.com/index.php?term=systole   (26 words)

  
 Neurocardiogenic Syncope or valve regurgitation?
At 27 min on tilt symptoms develop, I pass out w/HR of 48 and systole of 60.
Holter shows rare APCs/VPCs Home monitoring - when symptoms develop BP drops 80/50 usually, and HR increase 100 -200.
http://www.medhelp.org/Forums/Cardio/messages/35319.html   (752 words)

  
 SAMPLE QUIZ ON THE HEART
Questions 19-23 apply to the following components of the heart's conduction system:
In which order does impulse conduction progress along the conduction system?
a) early systole, b) late diastole, c) late systole, d) the quiescent period.
http://webanatomy.net/anatomy/heartq.htm   (167 words)

  
 Blood pressure units - buy here
Large display showing: Systole, Diastole, Pulse, Time and Date
Digital display showing: Systole, Diastole, Pulse, Time and Date
http://www.healthfocus.co.nz   (509 words)

  
 Explanation of antibody,mercury,scalp,starch,-cyte,side reaction,systole,palmar,vaccinate,dicotyledon
Word Explanations antibody, mercury, scalp, starch, -cyte, side reaction, systole, palmar, vaccinate, dicotyledon
Explain the words antibody, mercury, scalp, starch, -cyte, side reaction, systole, palmar, vaccinate, dicotyledon
Definition of antibody, mercury, scalp, starch, -cyte, side reaction, systole, palmar, vaccinate, dicotyledon
http://english-test.net/pcat/vocabulary/meanings/056/pcat-explanations.php   (321 words)

  
 Renderosity - Gallery, Downloads, Tutorials, 3D Modeling, Models, Textures, Poser Resources
If you would like to make a direct link from your own website to this artist's gallery, please feel free to do so!
We are proud to host the works of Systole here at Renderosity.com.
Want to get a sponsor link under your images?
http://www.renderosity.com/gallery.ez?ByArtist=Yes&Artist=Systole   (215 words)

  
 Babenko, Katz: Systolic freedom of orientable manifolds
SUCIU, Volumes, middle-dimensional systoles, and Whitehead products, (Math.
BERGER, Systoles et applications selon Gromov, exposé 771, Séminaire N. Bourbaki, (Astérisque, Vol.
KATZ, Homogeneous freedom in middle dimension, in progress.
http://www.numdam.org/numdam-bin/item?id=ASENS_1998_4_31_6_787_0   (358 words)

  
 FanFiction.Net : Dictionary & Thesaurus
3 definitions found From The Collaborative International Dictionary of English v.0.48 : Systole \Sys"to*le\, n.
http://www.fanfiction.net/dictionary.php?word=systole   (58 words)

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