Chapter 5 Primary Words Flashcards
Cardiovascular
Pertaining to the heart and blood vessels
Cardi/o means heart, vascul means blood vessels
Heart
Hollow, muscular organ located in the thoracic cavity, very effective blood pump
Pericardium
Pericardial Sac
Double-walled membranous sac that encloses the heart
Peri means surrounding, cardi means heart
Epicardium
External layer of the heart and the inner layer of the pericardium
Epi means upon, cardi means heart
Myocardium
Middle and thickest of the heart’s three layers, specialized muscle tissue capable of constant contraction and relaxation
Myo means muscle, cardi means heart
Endocardium
Consists of epithelial tissue, is the inner lining of the heart, comes into contact with pumping blood
Endo means within, cardi means heart
Coronary Arteries
Supply oxygen-rich blood to the myocardium
Atria
The two upper chambers of the heart, divided by the interatrial septum, recieving chambers
Ventricles
Two lower chambers of the heart, divided by the interventricular septum
Tricuspid Valve
Controls the opening between the right atrium and the right ventricle
Tri means three
Pulmonary valve
Located between the right ventricle and the pulmonary artery
Pulmonary means pertaining to the lungs
Mitral Valve
Located between the left atrium and left ventricle
Aortic Valve
Located between the left ventricle and the aorta
Aort means aorta, ic means pertaining to
Pulmonary Circulation
The flow of blood only between the heart and lungs
Pulmonary Arteries
Carry deoxygenated blood out of the right ventricle into the lungs
Pulomonary Veins
Carry the oxygenated blood from the lungs into the left atrium of the heart
Systemic Circulation
Includes the flow of blood to all parts of the body except the lungs
Heartbeat
Ability to pump blood effectively throughout the body
Conduction System
Electrical impulses are controlled by the sinoatrial node, atrioventricular node, and the bundle of his
Sinoatrial Node (SA)
Located in the posterior wall of the right atrium, establishes basic rhythm and rate of heartbeat
Atrioventricular Node (AV)
The impulses from the SA Node travel to the AV node, transmits electrical impulses to the bundle of His
Bundle of His
Group of fibers located within the interventricular septum, carry an electrical impulse to secure the sequence of the heart contractions
Purkinje Fibers
Specialized conductive fibers located within the walls of the ventricles, relay the electrical impulses to the cells of the ventricles
P Wave
Due to the stimulation/ contraction of the atria
QRS Complex
Shows the stimulation/contraction of the ventricles
T Wave
Recovery/relaxation of the ventricles
Arteries
Large blood vessels that carry blood away from the heart to all reigons of the body
Aorta
Largest blood vessel in the body
Carotid Arteries
Major arteries that carry blood upward toward the head
Arterioles
Smaller, thinner branches of arteries that deliver blood to the capillaries
Capillaries
The only one epithelial cell in thickness, slow the flow of blood
Veins
Form a low-pressure collecting systen to return oxygen-poor blood to the heart
Venules
Smallest veins that join to form the larger veins
Venae Cavae
Two largest veins in the body, return blood to the heart
Pulse
Rythmic pressure against the walls of an artery caused by the contraction of the heart
Blood Pressure
Measurement of the amount of systolic and diastolic pressure exerted against the walls of the arteries
Systolic Pressure
Occurs when the ventricles contract, highest pressure against the walls of an artery
Systole means contraction of the heart
Diastolic Pressure
Occurs when the ventricles are relaxed, lowest pressure against the walls of an artery
Diastole means relaxation of the heart
Plasma
Straw-colored fluid that contains nutrients, hormones, and waste products
Serum
Plasma fluid after the blood cells and the clotting proteins have been removed
Fibrinogen/Prothrombin
The clotting proteins found in the plasma
Erythrocytes
Red Blood Cells (RBC)
Mature red blood cells produced by the red bone marrow, primary roll is to transport oxygen to the tissues
Erythr/o means red, -cytes means cells
Hemoglobin
Oxygen-carrying blood protein pigment of the erythrocytes
Hem/o means blood, globin means protein
Leukocytes
White Blood Cells (WBC)
Blood cells involved in defending the body against infective organisms and foriegn substances
Leuk/o means white, -cytes means cells
Neutrophils
Formed in red bone marrow, most common type of WBC
Basophils
Formed in red bone marrow, least common type of WBC, resposible for causing the symptoms of allergies
Eosinophils
Formed in the red bone marrow, migrate to tissues throughout the body, destroy parasitic organisms
Lymphocytes
Formed in red bone marrow, lymph nodes, and the spleen, identify foreign substances and germs
Monocytes
Formed in red bone marrow, lymph nodes, and the spleen, provide immunological defenses against infectious organisms
Thrombocytes
Platelets
Smallest formed elements of the blood, important role in the clotting of blood
Thromb/o means clot, cytes means cells
Blood Types
Classified according to the presence or absence of certain antigens
Rh Factor
Defines the presence or absence of the Rh antigen on red blood cells
Blood Gases
Gases that are normally dissolved in the liquid portion of blood, magor blood gases are oxygen, carbon dioxide, and nitrogen
Cardiologist
Physician who specialized in diagnosing and treating abnormalities, diseases, and disroders of the heart
Hematologist
Physician who specializes in diagnosing and treating abnormalities, diseases, and disorders of the blood forming tissue
Hemat means blood, ologist means specialist
Vascular Surgeon
Physician who specializes in the diagnosis, medical management, and surgical treatment of the blood vessels
Telemetry Nurse
Specializes in the use of technology within a hospital unit to track vital signs such as blood pressure and heart rythms
Congenital Heart Defects
Structural abnormalities caused by the failure of the heart to develop normally before birth
Coronary Artery Disease
Coronary Heart Disease
Atherosclerosis of the coronary arteries that reduces the blood supply to the heart muscle
Atherosclerosis
Hardening and narrowing of the arteries caused by a buildup of plaque on the interior walls of the arteries
Ather/o means plaque, sclerosis means abnormal hardening
Ischemia
Condition in which there is an insufficient supply of oxygen in the tissues due to restricted blood flow to a part of the body
Angina
Angina Pectoris
Condition in which severe episodes of chest pain occur due to inadequate blood flow to the myocardium
Myocardial Infarction
Heart attack
The occlusion of one or more cornonary arteries caused by plaque buildup
Occlusion means total blockage
Infarction means insuffiency of blood
Heart Failure
Often after the heart has been weakened or damaged by other health issues
Congestive Heart Failure
Causes fluid to backup which results in edema (swelling), can cause accumulation of fluid in the lungs
Left-sided Heart Failure
Systolic or diastolic failure depending on which action of the heart has been affected
Right-sided Heart Failure
Often the result of left sided heart failure, causes fluid buildup
Cardiomegaly
Abnormal enlargement of the heart that is frequently associated with heart failure
Cardi/o means heart, megaly means abnormal enlargement
Carditis
Inflammation of the heart
Card means heart, itis means inflammation
Endocarditis
Inflammation of the inner lining of the heart
Endo means within, card means heart, itis means inflammation
Infective Endocarditis
Bacterial Endocarditis
Inflammation of the lining or valves of the heart caused by the presence of bacteria in the bloodstream
Pericarditis
Inflammation of the pericardium, causes an accumulation of fluid within the pericardial sac
Peri means surrounding, card means heart, itis inflammation
Myocarditis
Inflammation of the myocardium that develops as a rarely seen complication of a viral infection
My/o means muscle, card means heart, itis means inflammation
Cardiomyopathy
Term used to describe all diseases of the heart muscle
My/o means muscle, pathy means disease
Heart Murmur
Abnormal blowing or clicking sound heard when listening to the heart or a neighboring blood vesselss
Mitral Valve Prolapse (MVP)
Abnormal protrusion of a heart valve that results in the inability of the valve to close completely
Valvular Stenosis
Condition in which there is narrowing, stiffening, thickening, or blockage of one or more valves of the heart
Heart Valve Disease
Degenerative disorder that prevents heart valves from opening and closing properly, leading to fatigue, shortness of breath, and lightheadedness
Aortic Stenosis
Buildup of calcium and fat deposits in the aortic valve, causes narrowing that prevents the valve from opening fully
Mitral Valve Regurgitation
Occurs when the mitral valve does not close tightly, thus allowing blood to leak back through the opening
Arrythmia
Loss of the normal ryhtm of the heartbeat
Asystole
Flatline
Complete lack of electrical activity in the heart
A means without, systole means contraction
Cardiac Arrest
Event in which the heart abruptly stops beating or develops an arrythmia that prevents it from pumoing blood effectively
Heart Block
Congenital or accquired arrythmia caused by the electrical signal moving through the heart being partially ir completely blocked from reaching the ventricles
Bradycardia
Abnormally slow resting heart rate, less than 60 beats per minute
Brady means slow, card means heart
Tachycardia
Abnormally rapid resting heart rate, greater than 100bpm
Tachy means rapid, card means heart
Supraventricular Tachycardia
An episode that begins and ends abruptly during which there are very rapid and regular heartbeats that originate at or above the atrioventricular
Ventricular Tachycardia
Very rapid heartbeat