WordNet
- perform as expected when applied; "The washing machine wont go unless its plugged in"; "Does this old car still run well?"; "This old radio doesnt work anymore" (同)work, operate, go, run
- (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function) (同)mathematical function, single-valued function, map, mapping
- a relation such that one thing is dependent on another; "height is a function of age"; "price is a function of supply and demand"
- the actions and activities assigned to or required or expected of a person or group; "the function of a teacher"; "the government must do its part"; "play its role" (同)office, part, role
- what something is used for; "the function of an auger is to bore holes"; "ballet is beautiful but what use is it?" (同)purpose, role, use
- a formal or official social gathering or ceremony; "it was a black-tie function"
- of or pertaining to or involving the heart and blood vessels; "cardiovascular conditioning"
- performing or able to perform its regular function; "a functioning flashlight"
PrepTutorEJDIC
- (人・物の果たすべき)『働き』,機能,役目;《しばしば複数形で》職務 / (公式の)儀式,《話》大きな催し(集まり),式典 / (数学で)関数 / 〈機械などが〉『機能を果たす』,動く / (…の)役目をする,代用となる《+『as』+『名』》
- 心臓と血管の(に影響する)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/05/30 17:36:24」(JST)
[Wiki en表示]
Cardiovascular physiology is the study of the circulatory system, specifically addressing the physiology of the heart ("cardio") and blood vessels ("vascular").
These subjects are sometimes addressed separately, under the names cardiac physiology and circulatory physiology.[1]
Although the different aspects of cardiovascular physiology are closely interrelated, the subject is still usually divided into several subtopics.
Contents
- 1 Heart
- 2 Regulation of blood pressure
- 3 Regional circulation
- 4 References
- 5 External links
Heart
Main article: Cardiac physiology
- Cardiac output (= heart rate * stroke volume. Can also be calculated with Fick principle.)
- Stroke volume (= end-diastolic volume - end-systolic volume)
- Ejection fraction (= stroke volume / end-diastolic volume)
- ((Cardiac Output)) is mathematically ` to ((Systole))
-
- Inotropic, chronotropic, and dromotropic states
-
- Cardiac input (= heart rate * suction volume Can be calculated by inverting terms in Fick principle)
- Suction volume (= end-systolic volume + end-diastolic volume)
- Injection fraction (=suction volume / end-systolic volume)
- Cardiac input is mathematically ` to (Diastole))
- Electrical conduction system of the heart
- Electrocardiogram
- Cardiac marker
- Cardiacs action potential
- Frank–Starling law of the heart
- Wiggers diagram
- Pressure volume diagram
Regulation of blood pressure
- Baroreceptor
- Baroreflex
- Renin-angiotensin system
- Juxtaglomerular apparatus
- Aortic body and carotid body
- Autoregulation
Hemodynamics
Under most circumstances, the body attempts to maintain a steady mean arterial pressure.
When there is a major and immediate decrease (such as that due to hemorrhage or standing up), the body can increase the following:
- Heart
- Total peripheral resistance (primarily due to vasoconstriction of arteries)
- Inotropic state
In turn, this can have a significant impact upon several other variables:
- Stroke volume
- Cardiac output
- Pressure
- Pulse pressure (systolic pressure - diastolic pressure)
- Mean arterial pressure (usually approximated with diastolic pressure + 1/3 pulse pressure)
- Central venous pressure
Regional circulation
Name of circulation |
% of cardiac output |
Autoregulation |
Perfusion |
Comments |
pulmonary circulation |
100% (deoxygenated) |
|
|
Vasoconstriction in response to hypoxia |
cerebral circulation |
15%[2] |
high |
under-perfused |
Fixed volume means intolerance of high pressure. Minimal ability to use anaerobic respiration |
coronary circulation |
5% |
high |
under-perfused |
Minimal ability to use anaerobic respiration. Blood flow through the left coronary artery is at a maximum during diastole (in contrast to the rest of systemic circulation, which has a maximum blood flow during systole.) |
splanchnic circulation |
15% |
low |
|
Flow increases during digestion. |
hepatic circulation |
15% |
|
|
Part of portal venous system, so oncotic pressure is very low |
renal circulation |
25% |
high |
over-perfused |
Maintains glomerular filtration rate |
skeletal muscular circulation |
17%[3] |
|
|
Perfusion increases dramatically during exercise. |
cutaneous circulation |
2%[4] |
|
over-perfused |
Crucial in thermoregulation. Significant ability to use anaerobic respiration |
References
- ^ Overview at Medical College of Georgia
- ^ Physiology: 3/3ch11/s3c11_13 - Essentials of Human Physiology
- ^ Physiology: 3/3ch11/s3c11_2 - Essentials of Human Physiology
- ^ Physiology: 3/3ch11/s3c11_10 - Essentials of Human Physiology
External links
- Cardiovascular physiology at the US National Library of Medicine Medical Subject Headings (MeSH)
- Cardiovascular Physiology Concepts - Comprehensive explanation of basic cardiovascular concepts, based on a textbook of the same name.
- The Gross Physiology of the Cardiovascular System - Mechanical overview of cardiovascular function. Free eBook and video resources.
- Clinical Sciences - Cardiovascular An iPhone app covering detailed cardiovascular physiology and anatomy
- Quantitative Cardiovascular Physiology and Clinical Applications for Engineers
UpToDate Contents
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Related Pictures
★リンクテーブル★
[★]
- 英
- cardiovascular function
- 関
- 心血管系機能
[★]
- 英
- cardiovascular function
- 関
- 心血管機能
[★]
-
- survival as a function of HbA1c in people with type 2 diabetes HbA1cの機能を考慮(指標に)した2型糖尿病の患者の生存(予後)
- Figure 2A shows survival as a function of device removal during index hpspitalization, censored at 1 year or date of last contact. (Figure2Aはは最初の入院中における心臓デバイス除去に関する生存曲線で退院後1年もしくは最後の接触で打ち切っている)
- 関
- functional、functional group、functionalise、functionalize、operate
[★]
- 心血管の、心血管系の、循環器の、循環器系の、心血管性の
- 関
- cardiovascular system、circulatory system