Ch 12-Cardiovascular system Flashcards
Arteries
Carry blood away from the heart
Veins
Carry blood toward the heart
Capillaries
Tiny blood vessels that join the arterial and venous systems and carry blood to the organs
Heart
Surrounded by the pericardium (fluid filled sac) located in the thoracic cavity
The heart is connected to
The aorta, the inferior and superior venae cavae, and the pulmonary veins and arteries
Heart has four chambers
Right and left atria
Right and left ventricles
Septum
Separates the right and left sides of the heart
Atrioventricular valves
Allow blood flow from from atria to ventricles
Right atrioventricular valve
Left atrioventricular valve
Tricuspid valve
Bicuspid or mitral valve
Semilunar valves
Allow blood to flow from the ventricles to arteries
Pulmonary semilunar valve
Allows blood to flow from the right ventricles to the pulmonary artery
Aortic semilunar valve
Allows blood to flow from the left ventricle into the aorta
From inside out layers of the heart walls are
Endocardium
Myocardium
Epicardium
Pericardium
A sac filled with pericardial fluid
Outer covering of the pericardium
Parietal layer
Inner lining of the pericardium
Visceral layer also epicardium
Conduction system
Hearts electrical system
Conduction system consists of
Sinoatrial node SA node or pacemaker Atrioventricular node Atrioventricular bundle Right and left bundle branches Purkinje fibers
SA node (pacemaker)
Initiates an impulse, which is sent to the AV node causing the atria to contract, and then to the AV bundle, the right and left bundle branches and Purkinje fibers, causing the ventricle to contract
An ECG shows
P waves (atrial contraction) QRS waves (ventricular contraction) T waves (ventricular recovery)
Cardiovascular system (CVS) includes
Heart Blood vessels (arteries, veins, and capillaries) It delivers oxygen and nutrients to all of the body's cells, and carries away carbon dioxide and waste products
Constrict/o
To draw together
Dilat/o
To expand
Angiography
Process of recording a blood vessel using X-rays following injection of a contrast medium
Angioplasty
Surgical repair of stenosed (narrowed) blood vessels
Angiospasm
Sudden involuntary contraction of a blood vessel; vasospasm
Aort/o
Aorta
Aortostenosis
Narrowing of the aorta
Aortotomy
Incision into the aorta
Transaortic
Pertaining to across the aorta
Arteriography
Process of recording the arteries using X-rays and following injection of a contrast medium
Arteriole
Small arteries
Arteriosclerosis
Hardening of the arteries (due to the loss of elasticity of the arterial walls)
Arteriostenosis
Narrowing of an artery
Endarterectomy
Removal of the inner lining of the arterial wall
Ather/o
Fatty debris; fatty plaque
Atheroma
Fatty mass or debris
Atherosclerosis
Accumulation of fatty debris on the inner arterial walls; a type of arteriosclerosis
Atherectomy
Excision or removal of fatty debris (from arterial wall)
Atri/o
Atrium (upper chamber of the heart)
Interatrial septum
Wall between the atria
Cardi/o
Heart
Cardiologist
Specialist in the study of the diagnosis and treatment of heart disease and disorders
Cardiology
Study of the heart, including the diagnosis and treatment of heart disorders
Cardiomegaly
Enlarged heart
Electrocardiogram
Record of the electrical activity of the heart
Myocardial
Pertaining to the heart muscle
Cardiomyopathy
Disease of the heart muscle
Pancarditis
Inflammation of all the walls of the heart
Pericarditis
Inflammation of the pericardium
Pericardium
Structure surrounding the heart
Coronary arteries
The arteries that supply the heart with blood
Echocardiogram
Record of the heart produced by high frequency sound waves
Coron/o
Crown
Ech/o
Sound
Embol/o
Plug
Embolus
A plug of clotted blood that is transported through the bloodstream by the blood current
Isch/o
Hold back
Myocardial ischemia
A hold back of blood to the heart and muscle
Phelbothrombosis
Abnormal condition of clots in a vein
Thrombophlebitis
Inflammation of a vein with clot formation
Rhythm/o
Rythum
Arrhythmia
Deviation from the normal heart rhythm
Sclerotherapy
Injection of a solution into a vein for the purpose of destroying the veins inner lining by hardening. (Effective for varicose veins)
Thromb/o
Clot
Thrombus
A blood clot that obstructs a blood vessel
Valvul/o
Valve
Valvuloplasty
Surgical repair of a valve
Varic/o
Twisted and swollen
Varicose veins
Twisted swollen superficial veins typically of the saphenous vein of the lower leg.
Vascul/o
Vessel
Avascular
Pertaining to no blood vessels
Cerebrovascular accident (CVA)
Disturbance in the flow of blood to one or more parts of the brain; commonly known as a stroke
Vas/o
Vessel
Extravasation
Escape of fluid into the surrounding tissue; for example, the escape of blood from a blood vessel into the surrounding tissue
Vasoconstriction
Narrowing of a vessel; vasospasm
Vasodilation
Widening of the vessel; angiectasis
Ven/o
Vein
Venous
Pertains to a vein
Venule
Small vein
Ventricul/o
Ventricle (lower chamber of the heart)
Interventricular septum
Pertaining to the wall between the ventricles
-ectasis
Dilation; dilatation; stretching
Angiectasis
Dilation of a blood vessel; vasodilation
-brady
Slow
Bradycardia
Slow heartbeat
Tachycardia
Fast heartbeat
Aneurysm
Abnormal bulge in the wall of the artery. Most often in brain or aorta. Causes internal hemorrhage which might result in death
Cardiac arrest
When the heart suddenly stops pumping blood.
Myocardial infarction
Heart attack; death of the heart muscle
AV
Atrioventricular
ASHD
Arteriosclerotic heart disease (damage to the heart due to obstruction of the coronary artery)
BP
Blood pressure
CABG
Coronary artery bypass graft
CAD
Coronary artery disease
CCU
Cardiac/coronary care unit
CHF
Congestive heart failure
CPR
Cardiopulmonary resuscitation
CV
Cardiovascular
CVA
Cerebrovascular accident
ECG; EKG
Electrocardiogram
HHD
Hypertensive heart disease
IVC
Inferior venae cavae
LA
Left atrium
LV
Left ventricle
MI
Myocardial infarction
MVP
Mitral valve prolapse
PVC
Premature ventricular contraction
RA
Right atrium
RV
Right ventricle
SA
Sinoatrial
SVC
Superior venae cavae
Systolic pressure
Pressure against the walls of the artery during ventricular contraction
Diastolic pressure
Pressure against the walls of the artery during ventricular relaxation
P wave
Registers atrial contraction
Arteries and veins are named
According to the structure through which they pass