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56 Cards in this Set
- Front
- Back
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The atria |
Upper chambers and recieve the blood into the heart. |
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Ventricles |
Lower chambers and pump blood out of the heart. |
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Valves in order |
Tricusspid valve Pulmonic valve Mitral valve Aortic valve |
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Right atrium |
Recieves unoxygenated blood from the superior and inferior venae cava. |
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Right ventricle |
Recieves blood from right atrium to pump blood throughthe pulmonary arteries to the lungs. |
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Left atrium |
Recieves oxygenated blood from the lungs through four pulmonary veins |
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Left ventricle |
The primary function of the left ventricle is to pump blood into the systemic circulation. |
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Chordae tendineae |
Attaches to papillary muscles to open atrioventricular valvea. |
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Order of circulation |
Right atrium Tricuspid valve Right ventricle Pulmonic semilunar valve Pulmonary arteries Pulmonary capilaries Four pulmonary veins Left atrium Bicuspid valve (mitral) Left ventricle Aortic semilunar valve Aorta Arterial circulation Artery Arteriole Capillary(CO2) Venule Vein Venule circulation Inferior & superior venae cava |
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Right sided heart failure |
Engorged neck veins, reddened face. |
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Left sided heart failure |
Blood will expand alveoli making them crackle with excess fluid. Pt. will expirience shortness of breath. |
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Superior venae cava recieves blood from? |
Head and arms. Superior portion of the body. |
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Inferior venae cava recieves blood from? |
Trunk & inferior portion of the body. |
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What supplies blood to the heart ms? |
Right and left coronary artery |
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What draws deoxygenated blood away from the heart? |
Cardiac veins |
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Circumflex artery |
Branch of left coronary artery. |
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Sinoatrial node fires how many impulses? |
60-100 times per min. 72 average |
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Sinoatrial (SA) node |
Is known as the pacemaker. Releases action potential or cardiac impulse. |
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Atrioventricular node |
Is located on the floor of right atrium. It acts as the track for the cardiac impulse into bundle of his thru the perkinje fibers to depolarize ventricles. |
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Purkinje fibers |
Distributed throughout the ventricular myocardium. |
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Lub Dub sound |
Lub- 1st sound and its the closure of the atrioventricular valves Dub- 2nd sound and its the closure of the pulmonic and aortic valve. |
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Why will the pulmonary valve open? |
Right ventricular depolarization will push blood flow through pulmonary valve to pulmonary artery. |
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What does P stand for on the ECG? |
Atrial depolarization |
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Whats is the QRS on the ECG? |
Ventricular depolarization |
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T on the ECG? |
Ventricular repolarization |
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Depolarization |
Contraction |
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Repolarization |
Relaxtion |
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CH 17 |
17 |
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Cardiac cycle |
Is the sequence of events that occurs during one heartbeat. |
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Stroke volume |
Blood in one heartbeat |
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Cardiac output |
Volume of blood pumped in one min. |
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Systole |
Contraction of the heart muscle that pushes blood out of a chamber. |
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Diastole |
Blood fills a chamber during diastole. |
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Sympathetic stimulation |
Increases the speed at which the cardiac impulse travels to the purkinje fibers system. Increases the force of myocardial contraction. (Poistive inotopic effect) |
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Parasympathetic(vagus nerve) stimulation |
Decrease activity causes bradycardia. |
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Heart rate |
The number of times the heart beats per min. |
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Heart rate + stroke volume= |
Cardiac output |
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CH 18 |
18 |
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Layers of a blood vessel? |
Tunica intima Tunica media Tunica adventitia |
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Carotid artery |
Supplies blood to the brain ( anterior) |
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Vertebral artery |
Posterior |
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Brachial artery |
We get our blood pressure here |
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Radial artery |
Is where we get our pulse |
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Longest vein in the body? |
Great saphenous vein |
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Defect in the legs from history or standing too long? |
Cause vericose veins |
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What is the structure that does not close in a fetus heart, that creates a shunt? |
Foramen ovale |
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Which structure in the fetal circulation has highest ocygenation? |
Umbilical vein |
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Fetus circulation |
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What causes portal vein hypertension? |
Scerosis |
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Im what structure is the blood pressure the lowest? |
Inferior venae cava |
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CH 19 |
19 |
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Sphygmomanometer |
An instrument for measuring blood pressure. |
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Pulse pressure |
Is the diffrence in pressure from systolic and diastolic pressure. 120/80= 40 |
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Poor sking trigger |
Dehydration |
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Baroreceptors |
Are located at the walls of the aortic arch. They sense sudden change in bp. |
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Vasopressor |
Increases blood pressure |
