MT Ch. 5-cardiovascular Flashcards
Artery
Carries blood away from the heart
Heart
Pumps blood through blood vessels, made of cardiac muscle fibers Has four chambers and averages 60-100 beats a minute
Vein
Carries blood toward the heart, thinner-walled than arteries
Capillary
Exchange site between blood and tissues, very thin walled to allow diffusion of oxygen and nutrients
Cardiovascular system
Aka circulatory system Maintains distribution of blood throughout the body and collects waste from cells Composed of heart, arteries, capillaries, and veins
Pulmonary circulation
Between heart and lungs; transports deoxygenated blood to lungs to get oxygen, then back to the heart
Systemic circulation
Carries oxygenated blood away from the heart to tissues and cells, then back to the heart
Where waste is disposed of
Lungs, liver, and kidneys
Apex
Tip of heart at lower edge
Endocardium
Inner layer of the heart, lining the chambers Serves to reduce friction as blood passes through
Myocardium
Muscular middle layer of heart Provides pressure needed to pump blood
Epicardium
Outer layer of the heart, also called the visceral pericardium
Atria
Two upper chambers of the heart, receive blood, divided by the interatrial septum
Ventricles
Two lower chambers of the heart, pumping chambers, divided by the interventricular septum
Heart valves
Restraining gates to control the direction of blood flow, situated at entrances and exits to ventricles
Tricuspid valve
Atrioventricular valve meaning it controls opening between right atrium and right ventricle, has three cusps
Pulmonary valve
Semilunar valve, meaning it looks like a half moon. Located between right ventricle and pulmonary artery
Mitral valve
Bicuspid valve, has two cusps. Controls opening between left atrium and left ventricle
Aortic valve
Semilunar valve located between left ventricle and aorta
Superior vena cava and inferior vena cava
Two large veins that deoxygenated blood from the body enters the right atrium through
Pulmonary artery
Artery that carries deoxygenated blood to the lungs
Pulmonary veins
Four veins that oxygenated blood from the lungs enters the left atrium through
Aorta
Largest artery in the body that carries blood all over
Diastole
Period of time a heart chamber is relaxed
Systole
When a heart chamber is contracted
Blood flow through the heart
- Deoxygenated blood from the body enters the right atrium through the superior and inferior vena cava 2. Flows through tricuspid valve into right ventricle 3. RV contracts and pumps blood through the pulmonary valve to the pulmonary artery to the lungs for oxygenation 4. Oxygenated blood from the lungs enters the left atrium through the four pulmonary veins 5. Blood flows through the bicuspid(mitral) valve into the left ventricle 6. LV contracts and pumps blood through aortic valve into the aorta
Autonomic nervous system
Regulates automatic processes of body, controls heartbeat
Flow of Electricity through the heart
- Sinoatrial (SA) node is stimulated, sending impulses through the atria, causing them to contract 2. Atrioventricular node is stimulated, transfers to atrioventricular bundle 3. Travels down bundle branches in the interventricular septum 4. Purkinje fibers in ventricular myocardium are stimulated, causing the ventricles to contract
Lumen
Channel within blood vessels that blood flows through
Arterioles
Smallest arteries that carry blood to the capillaries
Coronary arteries
Branch from the aorta, provide blood to the myocardium. Branch into smaller arteries as they travel through the body
Capillary bed
Network of tiny blood vessels that make up capillaries Arterial blood flows in, venous blood flows out
Venules
Smallest veins, blood leaving capillaries first enters these, then merges into larger veins
Blood pressure
Measurement of force exerted by blood against the wall of a blood vessel-highest reading over the lowest reading
Systolic pressure
Blood pressure when the ventricles are in systole, or contraction-highest blood pressure reading
Pulse at wrist or throat
Surge of blood caused by heart contraction
Diastolic pressure
Blood pressure when ventricles are in diastole, or resting-lowest blood pressure reading
Cardiology
Diagnosis and treatment of conditions of the cardiovascular system
Cardiovascular technician
Professional trained to perform a variety of diagnostic and treatment procedures including electrocardiography, echocardiography, and exercise stress tests
Angilitis
Inflammation of a vessel
Angiospasm
Muscle contraction of the smooth muscle in the wall of a vessel, narrowing it
Angiostenosis
Narrowing of a vessel
Bradycardia
Slow heart rate, usually less than 60 beats/min
Embolus
Obstruction of blood vessel by a blood clot broken off of a thrombus
Infarct
Area of tissue within an organ that undergoes necrosis following loss of blood supply
Ischemia
Deficiency of blood supply due to obstruction of circulation
Murmur
An abnormal sound arising from blood flowing through the heart that May or may not indicate a heart abnormality
Orthostatic hypotension
Sudden drop in blood pressure when standing up straight
Palpitations
Pounding, racing, heartbeats
Plaque
Yellow, fatty deposit of lipids in an artery, indication of atherosclerosis
Regurgitation
Backflow of blood through a valve
Tachycardia
Fast heart rate
Thrombus
Blood clot within a vessel
Angina pectoris
Severe pain with a sensation of constriction around the heart caused by deficiency of oxygen
Arrhythmia
Irregularity in heartbeat
Cardiac arrest
Complete stopping of heart activity
Cardiomegaly
Enlarged heart
Cardiomyopathy
General term for disease of myocardium
Congenital septal defect
A hole in the septum between two heart chambers, present at birth Atrial septal defect and ventrical septal defect
Congestive heart failure
Reduced outflow of blood from the left side of the heart because the left ventricle myocardium has become too weak to pump blood
Coronary artery disease
Insufficient blood supply to the heart because one or more coronary arteries are obstructed
Endocarditis
Inflammation of the lining membranes of the heart
Fibrillation
Arrhythmia characterized by abnormal quivering of contraction of heart fibers, can cause cardiac arrest and death
Flutter
Arrhythmia in which atria beat too rapidly
Heart valve prolapse
Cusps of valves are too loose and fail to shut tightly, allowing backflow
Heart valve stenosis
Cusps are too stiff and can’t fully open or shut, making it hard for blood to flow through and allowing backflow
Myocardial infarction
Partial or complete occlusion or closing of one or more of the coronary arteries Aka heart attack
Myocarditis
Inflammation of muscle layer of the heart wall
Pericarditis
Inflammation or pericardial sac
Tetralogy of Fallot
Combination of pulmonary stenosis, interventricular septal defect, improper placement of the aorta, and hypertrophy of right ventricle
Valvulitis
Inflammation of heart valve
Aneurysm
Widening of the artery, common in abdominal aorta and cerebral arteries in brain
Arteriorrhexis
Ruptured artery
Arteriosclerosis
Hardening of arterial walls
Atheroma
Deposit of fatty substance in the wall of an artery that narrows the lumen Aka plaque
Atherosclerosis
Hardening of the fatty substance in the arteries
Coarctation of the aorta
Severe congenital narrowing of the aorta
Congenital
Present from birth
Hemorrhoid
Varicose veins in anal region
Hypertension
Blood pressure is above the normal range
Hypotension
Decrease in blood pressure
Patent ductus arteriosis
Connection between pulmonary artery and aorta fails to close at birth
Peripheral vascular disease
Any condition affecting blood vessels outside the heart
Phlebitis
Inflammation of a vein
Polyarteritis
Inflammation of several arteries
Raynaud’s phenomenon
Periodic ischemic attacks affecting the extremities, causing them to become cyanotic and very painful
Thrombophlebitis
Inflammation of a vein resulting in formation of blood clots
Varicose veins
Swollen and distended veins, usually in the legs
Auscultation
Listening to sounds within body by using a stethoscope
Sphygmomanometer
Instrument for measuring blood pressure Aka blood pressure cuff
Stethoscope
Instrument for listening to body sounds (auscultation)
Cardiac enzymes
Blood test to determine the level of enzymes in the blood, too many may result in heart damage
Serum lipoprotein level
Blood test to measure amount of cholesterol and triglycerides in blood, indicator of atherosclerosis
Angiogram
X-ray record of a vessel
Angiography
Process of taking an xray of a blood vessel Aortic angiography, angiocardiography, and cerebral angiography
Cardiac scan
Injecting radioactive thallium in the veins and scanning to determine heart damage
Doppler ultrasonography
Measurement of sound save echoes as they bounce off tissues and organs to produce an image
Echocardiography
Using ultrasound to visualize internal cardiac structures
Catheter
Flexible tube inserted into the body that moves fluids in or out of the body
Cardiac catheterization
Passing a thin tube catheter through a blood vessel leading to the heart
Electrocardiogram
Record of the hearts electrical activity from electrocardiography
Electrocardiography
Process of recording electrical activity of the heart
Holter monitor
Portable ECG monitor worn by a patient to assess the heart and pulse activity as the person goes through daily living
Stress testing
Evaluates cardiovascular fitness by using a treadmill or bicycle Aka exercise test or treadmill test
Cardiopulmonary resuscitation
Restores cardiac output and air to lungs for someone in cardiac arrest by using chest compressions and artificial respiration
Defibrillation
Giving electric shock to convert irregular heartbeats Automated external defibrillators (AED) detect the arrhythmias ad deliver appropriate shock, designed for non-medical personnel
Extracorporeal circulation
Routing blood to a heart-lung machine to be oxygenated and pumped back to the body during open heart surgery
Implantable cardioverterdefibrillator
Delivers electric shock to restore normal heart rhythm
Pacemaker implantation
Substitutes for natural pacemaker(sinoatrial node) of the heart, controls heartbeats
Thrombolytic therapy
Drugs are injected into a blood vessel to dissolve clots
Aneurysmectomy
Surgical removal of the sac of an aneurysm
Arterial anastomosis
Surgically joining two arteries
Anther ectomy
Surgical procedure to remove an atheroma from an artery
Coronary artery bypass graft
Blood vessel from another location is grafted to route blood around a blocked coronary artery
Embolectomy
Removal of embolus(clot) from blood vessel
Endarterectomy
Removal of damaged inner lining of an artery
Heart transplantation
Replacing the entire heart
Intracoronary artery stent
Placing a stent in a coronary artery to treat coronary ischemia due to atherosclerosis Basically keeps the artery from being blocked
Ligation and stripping
Treats varicose veins by tying off (ligation) and removing (stripping) the vein
Percutaneous transluminal coronary angioplasty
Insertion of a balloon catheter into a coronary artery and inflating it to dilate the artery
Stent
Stainless steel tube placed in a blood vessel to widen the lumen
Valve replacement
Removal and replacement of a heart valve with an artificial valve
Valvoplasty
Surgical repair of a heart valve
ACE inhibitor drugs
Produce vasodilation and decrease bold pressure Ex) capoten
Antiarrhythmic
Reduces or prevents cardiac arrhythmias Ex) convert
Anticoagulent
Prevents blood clot formation Ex) heparin
Antilipidemic
Reduces amounts of lipids in bloodstream Ex) Lipitor
Antiplatelet agents
Inhibits ability of platelets to clump together as part of a blood clot Ex) plavix, aspirin
Beta-blocker drugs
Lowers heart rate Ex) inderal
Calcium channel blocker drugs
Causes heart to beat less forcefully and less often Ex) procardia
Cardiotonic
Increases force of cardiac muscle contractions Ex) lanoxin
Diuretic
Increases urine production resulting in lower blood pressure Ex) lasix
Thrombolytic
Dissolves blood clots Ex) activase
Vasoconstrictor
Contracts blood vessels and raises blood pressure Ex) aramine
Vasodilator
Dilates blood vessel and lowers blood pressure Ex) nitroglycerin
Pumps blood through blood vessels, made of cardiac muscle fibers Has four chambers and averages 60-100 beats a minute
Heart
Carries blood away from the heart
Artery
Carries blood toward the heart, thinner-walled than arteries
Vein
Exchange site between blood and tissues, very thin walled to allow diffusion of oxygen and nutrients
Capillary
Aka circulatory system Maintains distribution of blood throughout the body and collects waste from cells Composed of heart, arteries, capillaries, and veins
Cardiovascular system
Between heart and lungs; transports deoxygenated blood to lungs to get oxygen, then back to the heart
Pulmonary circulation
Carries oxygenated blood away from the heart to tissues and cells, then back to the heart
Systemic circulation
Tip of heart at lower edge
Apex
Inner layer of the heart, lining the chambers Serves to reduce friction as blood passes through
Endocardium
Muscular middle layer of heart Provides pressure needed to pump blood
Myocardium
Outer layer of the heart, also called the visceral pericardium
Epicardium
Two upper chambers of the heart, receive blood, divided by the interatrial septum
Atria
Two lower chambers of the heart, pumping chambers, divided by the interventricular septum
Ventricles
Restraining gates to control the direction of blood flow, situated at entrances and exits to ventricles
Heart valves
Atrioventricular valve meaning it controls opening between right atrium and right ventricle, has three cusps
Tricuspid valve
Semilunar valve, meaning it looks like a half moon. Located between right ventricle and pulmonary artery
Pulmonary valve
Bicuspid valve, has two cusps. Controls opening between left atrium and left ventricle
Mitral valve
Semilunar valve located between left ventricle and aorta
Aortic valve
Two large veins that deoxygenated blood from the body enters the right atrium through
Superior vena cava and inferior vena cava
Artery that carries deoxygenated blood to the lungs
Pulmonary artery
Four veins that oxygenated blood from the lungs enters the left atrium through
Pulmonary veins
Largest artery in the body that carries blood all over
Aorta
Period of time a heart chamber is relaxed
Diastole
When a heart chamber is contracted
Systole
Regulates automatic processes of body, controls heartbeat
Autonomic nervous system
Channel within blood vessels that blood flows through
Lumen
Smallest arteries that carry blood to the capillaries
Arterioles
Branch from the aorta, provide blood to the myocardium. Branch into smaller arteries as they travel through the body
Coronary arteries
Network of tiny blood vessels that make up capillaries Arterial blood flows in, venous blood flows out
Capillary bed
Smallest veins, blood leaving capillaries first enters these, then merges into larger veins
Venules
Measurement of force exerted by blood against the wall of a blood vessel-highest reading over the lowest reading
Blood pressure
Blood pressure when the ventricles are in systole, or contraction-highest blood pressure reading
Systolic pressure
Blood pressure when ventricles are in diastole, or resting-lowest blood pressure reading
Diastolic pressure
Diagnosis and treatment of conditions of the cardiovascular system
Cardiology
Professional trained to perform a variety of diagnostic and treatment procedures including electrocardiography, echocardiography, and exercise stress tests
Cardiovascular technician
Inflammation of a vessel
Angilitis
Muscle contraction of the smooth muscle in the wall of a vessel, narrowing it
Angiospasm
Narrowing of a vessel
Angiostenosis
Slow heart rate, usually less than 60 beats/min
Bradycardia
Obstruction of blood vessel by a blood clot broken off of a thrombus
Embolus
Area of tissue within an organ that undergoes necrosis following loss of blood supply
Infarct
Deficiency of blood supply due to obstruction of circulation
Ischemia
An abnormal sound arising from blood flowing through the heart that May or may not indicate a heart abnormality
Murmur
Sudden drop in blood pressure when standing up straight
Orthostatic hypotension
Pounding, racing, heartbeats
Palpitations
Yellow, fatty deposit of lipids in an artery, indication of atherosclerosis
Plaque
Backflow of blood through a valve
Regurgitation
Fast heart rate
Tachycardia
Blood clot within a vessel
Thrombus
Severe pain with a sensation of constriction around the heart caused by deficiency of oxygen
Angina pectoris
Irregularity in heartbeat
Arrhythmia
Complete stopping of heart activity
Cardiac arrest
Enlarged heart
Cardiomegaly
General term for disease of myocardium
Cardiomyopathy
A hole in the septum between two heart chambers, present at birth Atrial septal defect and ventrical septal defect
Congenital septal defect
Reduced outflow of blood from the left side of the heart because the left ventricle myocardium has become too weak to pump blood
Congestive heart failure
Insufficient blood supply to the heart because one or more coronary arteries are obstructed
Coronary artery disease
Inflammation of the lining membranes of the heart
Endocarditis
Arrhythmia characterized by abnormal quivering of contraction of heart fibers, can cause cardiac arrest and death
Fibrillation
Arrhythmia in which atria beat too rapidly
Flutter
Cusps of valves are too loose and fail to shut tightly, allowing backflow
Heart valve prolapse
Cusps are too stiff and can’t fully open or shut, making it hard for blood to flow through and allowing backflow
Heart valve stenosis
Partial or complete occlusion or closing of one or more of the coronary arteries Aka heart attack
Myocardial infarction
Inflammation of muscle layer of the heart wall
Myocarditis
Inflammation or pericardial sac
Pericarditis
Combination of pulmonary stenosis, interventricular septal defect, improper placement of the aorta, and hypertrophy of right ventricle
Tetralogy of Fallot
Inflammation of heart valve
Valvulitis
Widening of the artery, common in abdominal aorta and cerebral arteries in brain
Aneurysm
Ruptured artery
Arteriorrhexis
Hardening of arterial walls
Arteriosclerosis
Deposit of fatty substance in the wall of an artery that narrows the lumen Aka plaque
Atheroma
Hardening of the fatty substance in the arteries
Atherosclerosis
Severe congenital narrowing of the aorta
Coarctation of the aorta
Present from birth
Congenital
Varicose veins in anal region
Hemorrhoid
Blood pressure is above the normal range
Hypertension
Decrease in blood pressure
Hypotension
Connection between pulmonary artery and aorta fails to close at birth
Patent ductus arteriosis
Any condition affecting blood vessels outside the heart
Peripheral vascular disease
Inflammation of a vein
Phlebitis
Inflammation of several arteries
Polyarteritis
Periodic ischemic attacks affecting the extremities, causing them to become cyanotic and very painful
Raynaud’s phenomenon
Inflammation of a vein resulting in formation of blood clots
Thrombophlebitis
Swollen and distended veins, usually in the legs
Varicose veins
Listening to sounds within body by using a stethoscope
Auscultation
Instrument for measuring blood pressure Aka blood pressure cuff
Sphygmomanometer
Instrument for listening to body sounds (auscultation)
Stethoscope
Blood test to determine the level of enzymes in the blood, too many may result in heart damage
Cardiac enzymes
Blood test to measure amount of cholesterol and triglycerides in blood, indicator of atherosclerosis
Serum lipoprotein level
X-ray record of a vessel
Angiogram
Process of taking an xray of a blood vessel Aortic angiography, angiocardiography, and cerebral angiography
Angiography
Injecting radioactive thallium in the veins and scanning to determine heart damage
Cardiac scan
Measurement of sound save echoes as they bounce off tissues and organs to produce an image
Doppler ultrasonography
Using ultrasound to visualize internal cardiac structures
Echocardiography
Flexible tube inserted into the body that moves fluids in or out of the body
Catheter
Passing a thin tube catheter through a blood vessel leading to the heart
Cardiac catheterization
Record of the hearts electrical activity from electrocardiography
Electrocardiogram
Process of recording electrical activity of the heart
Electrocardiography
Portable ECG monitor worn by a patient to assess the heart and pulse activity as the person goes through daily living
Holter monitor
Evaluates cardiovascular fitness by using a treadmill or bicycle Aka exercise test or treadmill test
Stress testing
Restores cardiac output and air to lungs for someone in cardiac arrest by using chest compressions and artificial respiration
Cardiopulmonary resuscitation
Giving electric shock to convert irregular heartbeats Automated external defibrillators (AED) detect the arrhythmias ad deliver appropriate shock, designed for non-medical personnel
Defibrillation
Routing blood to a heart-lung machine to be oxygenated and pumped back to the body during open heart surgery
Extracorporeal circulation
Delivers electric shock to restore normal heart rhythm
Implantable cardioverterdefibrillator
Substitutes for natural pacemaker(sinoatrial node) of the heart, controls heartbeats
Pacemaker implantation
Drugs are injected into a blood vessel to dissolve clots
Thrombolytic therapy
Surgical removal of the sac of an aneurysm
Aneurysmectomy
Surgically joining two arteries
Arterial anastomosis
Surgical procedure to remove an atheroma from an artery
Anther ectomy
Blood vessel from another location is grafted to route blood around a blocked coronary artery
Coronary artery bypass graft
Removal of embolus(clot) from blood vessel
Embolectomy
Removal of damaged inner lining of an artery
Endarterectomy
Replacing the entire heart
Heart transplantation
Placing a stent in a coronary artery to treat coronary ischemia due to atherosclerosis Basically keeps the artery from being blocked
Intracoronary artery stent
Treats varicose veins by tying off (ligation) and removing (stripping) the vein
Ligation and stripping
Insertion of a balloon catheter into a coronary artery and inflating it to dilate the artery
Percutaneous transluminal coronary angioplasty
Stainless steel tube placed in a blood vessel to widen the lumen
Stent
Removal and replacement of a heart valve with an artificial valve
Valve replacement
Surgical repair of a heart valve
Valvoplasty
Produce vasodilation and decrease bold pressure Ex) capoten
ACE inhibitor drugs
Reduces or prevents cardiac arrhythmias Ex) convert
Antiarrhythmic
Prevents blood clot formation Ex) heparin
Anticoagulent
Reduces amounts of lipids in bloodstream Ex) Lipitor
Antilipidemic
Inhibits ability of platelets to clump together as part of a blood clot Ex) plavix, aspirin
Antiplatelet agents
Lowers heart rate Ex) inderal
Beta-blocker drugs
Causes heart to beat less forcefully and less often Ex) procardia
Calcium channel blocker drugs
Increases force of cardiac muscle contractions Ex) lanoxin
Cardiotonic
Increases urine production resulting in lower blood pressure Ex) lasix
Diuretic
Dissolves blood clots Ex) activase
Thrombolytic
Contracts blood vessels and raises blood pressure Ex) aramine
Vasoconstrictor
Dilates blood vessel and lowers blood pressure Ex) nitroglycerin
Vasodilator