Cardiac output

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cardiac output

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Carey, Amanda

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Cardiac output


Mots Croisés Cardiac outputVersion en ligne cardiac output par Carey, Amanda 1 Period of heart contraction 2 Period of heart relaxation 3 Degree to which cardiac muscle cells are stretched just before they contract 4 Contractility is_____________by: sympathetic epinephrine which stimulates increased Ca2+ influx. Positive inotropic agents (Thyroxine, glucagon, epinephrine, digitalis, high EC Ca2+) also do the same. 5 Contractility is ___________by negative inotropic agents such as acidosis (excess H+), increased extracellular K+, and calcium channel blockers 6 pressure that ventricles must overcome to eject blood 7 EDV-volume of blood in each ventricle at ________of ventricular diastole. 8 ESV is the volume of blood ____________in each ventricle after systole. 9 The ______reflux is the sympathetic reflex initiated by increased venous return, hence increased atrial filling. Also known as the Bainbridge reflex. 10 80% of blood passively flows from atria through open AV valves into ventricles from atria . Atria contract, pushing remaining 20% of blood into ventricle. (SL valves closed). This stage of the cardiac cycle is called ventricular_________ 11 Atria relax; ventricles begin to contract. Rising ventricular pressure causes closing of AV valves. All valves are closed. This phase of the cardiac cycle is called ___________contraction 12 When ventricular pressure exceeds pressure in large arteries, SL valves are forced open. Pressure in aorta reaches about 120 mm Hg. This phase of the cardiac cycle is called ventricular __________ 13 Ventricles relax. Ventricular pressure drops causing backflow of blood from aorta and pulmonary trunk that triggers closing of SL valves. Ventricles are completely closed chambers momentarily. This phase of the cardiac cycle is called 14 Closure of aortic valve raises aortic pressure as backflow rebounds off closed valve cusps Referred to as _________notch 3 2 11 5 14 12 1 6 10 9 8 4 13 1 Atrial reflex causes a sympathetic reflex initiated by increased venous return, hence increased atrial filling. Atrial walls are stretched with increased volume which _____________(stimulates/inhibits) SA node, increasing the heart rate. 2 Epinephrine______________ (increases/ descreases) the heart rate and contractility. 3 Thyroxine _____________(increases/decreases) the heart rate 4 This disorder's name means low calcium 5 This disorder's name means high Calcium 6 This disorder's name means high potassium 7 This disorder's name means low potassium 8 what sex has a faster heart rate? Females or males? 9 This disorder occurs when the patient has an abnormally fast heart rate (>100 beats/min). Can lead to fibrillation 10 This disorder occurs when the patient has an abnormally slow heart rate. HR is lower than 60 beats/min. May result in grossly inadequate blood circulation in nonathletes 6 4 5 8 7 1 3 10 9 2

Cardiac output

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Créé par

Téléchargez la version pour jouer sur papier

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Cardiac outputVersion en ligne

par Carey, Amanda

Period of heart contraction

Period of heart relaxation

Degree to which cardiac muscle cells are stretched just before they contract

Contractility is_____________by: sympathetic epinephrine which stimulates increased Ca2+ influx. Positive inotropic agents (Thyroxine, glucagon, epinephrine, digitalis, high EC Ca2+) also do the same.

Contractility is ___________by negative inotropic agents such as acidosis (excess H+), increased extracellular K+, and calcium channel blockers

pressure that ventricles must overcome to eject blood

EDV-volume of blood in each ventricle at ________of ventricular diastole.

ESV is the volume of blood ____________in each ventricle after systole.

The ______reflux is the sympathetic reflex initiated by increased venous return, hence increased atrial filling. Also known as the Bainbridge reflex.

80% of blood passively flows from atria through open AV valves into ventricles from atria . Atria contract, pushing remaining 20% of blood into ventricle. (SL valves closed). This stage of the cardiac cycle is called ventricular_________

Atria relax; ventricles begin to contract. Rising ventricular pressure causes closing of AV valves. All valves are closed. This phase of the cardiac cycle is called ___________contraction

When ventricular pressure exceeds pressure in large arteries, SL valves are forced open. Pressure in aorta reaches about 120 mm Hg. This phase of the cardiac cycle is called ventricular __________

Ventricles relax. Ventricular pressure drops causing backflow of blood from aorta and pulmonary trunk that triggers closing of SL valves. Ventricles are completely closed chambers momentarily. This phase of the cardiac cycle is called

Closure of aortic valve raises aortic pressure as backflow rebounds off closed valve cusps Referred to as _________notch

Atrial reflex causes a sympathetic reflex initiated by increased venous return, hence increased atrial filling. Atrial walls are stretched with increased volume which _____________(stimulates/inhibits) SA node, increasing the heart rate.

Epinephrine______________ (increases/ descreases) the heart rate and contractility.

Thyroxine _____________(increases/decreases) the heart rate

This disorder's name means low calcium

This disorder's name means high Calcium

This disorder's name means high potassium

This disorder's name means low potassium

what sex has a faster heart rate? Females or males?

This disorder occurs when the patient has an abnormally fast heart rate (>100 beats/min). Can lead to fibrillation

This disorder occurs when the patient has an abnormally slow heart rate. HR is lower than 60 beats/min. May result in grossly inadequate blood circulation in nonathletes