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Chapter 5 cardiovasc

Cardiovascular System

The hollow musucular organ located between the lungs Heart
Double walled membranous sac that encloses the heart pericardium
External layer of the heart Epicardium
Middle and the thickest layer of the heart Myocardium
The inner lining of the heart endocardium
supply oxygen-rich blood to the myocardium coronary arteries
The two upper chambers of the heart Atria
A wall that separates two chambers septum
Two lower chambers of the heart ventricles
valve between the right atrium and right ventricle Tricuspid
Valve between the right ventricle and the pulmonary artery pulmonary semilunar valve
valve between the left atrium and the left ventricle Mitral
valve located betweent he left ventricle and the aorta aortic semilunar valve
The flow of blood between the heart and lungs Pulmonary Circulation
Carry deoxygenated blood out of the right ventricle and into the lungs pulmonary arteries
Carry oxygenated blood from the lungs into the left atrium pulmonary veins
flow of blood to all parts of the body except the lungs systemic circulation
electrical impulses from nerves that stimulate the myocardium of the chambers of the heart conduction system
located in the posterior wall of the heart near the entrance of the superior vena cava and is known as the pacemaker of the heart sinoatrial node or SA node
Impulses from the SA node travel to the _________ node atrioventricular node
a group of fibers located within the interventricular system. These fibers carry the electrical impulse to the left and right ventricles Bundle of HIS
Specialized conduction fibers that are located within the walls of the ventricles which cause the ventricles to contract Purkinje
This wave is due to contraction of the atria P Wave
this wave is due to stimulation of the ventricles QRS Wave
This wave shows recovery of the ventricles T Wave
Large blood vessels that carry blood away from the heart to all regions of the body Arteries
Pertaining to the inner portion of an artery or within an artery endoarterial
this blood is bright red in color due to the oxygenation level atrial blood
The largest blood vessel in the body Aorta
Major artery that carries blood to the head carotid arteries
Smaller thinner branches of arteries arterioles
These vessels return oxygen poor blood to the heart veins
Smallest veins that join to form larger veins venules
The largest vein in the body vena cava
Only one epitheleal cell in thickness and are the smallest blood vessels in the body capillaries
the rhythmic pressure against the walls of an artery caused by the contraction of the heart Pulse
measurement of the amount of systolic and diastolic pressure exerted against the walls of arteries blood pressure
mature red blood cells produced by the bone marrow erythrocytes
These blood cells are involved in defending the body against infective organisms leukocytes
Most common type of WBC Neutrophils
This WBC is responsible for allergy symptoms Basophils
This WBC destroys parasitic organisms and play a large role in major allergic reactions Eosinophils
These wbc identify foreign substgances in the body and produce antibodies that target that forein substance Lymphocytes
These are the smallest formed element in blood that play a role in the clotting of blood Thrombocytes
Structural heart abnormalities that are formed before birth Congenital Heart defects
atherosclerosis of the coronary arteries Coronary artery disease
Hardening and narrowing of the arteries caused by a buildup of cholesterol plaque athersclerosis
A group of cardiac disabilities that result from an insufficient supply of oxygenated blood to the heart Ischemic heart disease
Insufficient oxygen supply due to restricted blood flow Ischemia
Also known as a heart attack myocardial infarction
Chronic condition in which the heart is unable to pump out all of the blood it receives Congestive heart failure or heart failure
Abnormal enlargement of the heart Cardiomegaly
Inflammation of the inner lining of the heart endocarditis
Describes all the diseases of heart muscle cardiomyopathy
Abnormal protrusion of a heart valve that results in inability of the valve to close completely Valvular prolapse
Narrowing, stiffning, thickening, or blockage of a valve in the heart Valvular stenosis
Loss of normal ryhthm of the heart arrhythmia
pounding or racing heart palpitation
benign tumor made up of newly formed blood vessels hemangioma
deficiency of blood passing through an organ or body part hypoperfusion
angitis involving several medium and small arteries at the same time polyarteritis
peripheral vascular disease caused by atherosclerosis peripheral aterial occlusive disease
peripheral arterial occlusive disease in which intermittent attacks are triggered by cold or stress Raynaud's phenomenon
a localized weak spot or a balloon like enlargement in the wall of an artery aneurysm
thickening and loss of elasticity of artery walls arteriosclerosis
abnormally swollen veins varicose veins
a blood clot attached to the wall of a blood vessel thrombus
a blood clot attached to the wall of a blood vessel in a deep vein deep vein thrombus
a blood clot, small amount of air or gas, tissue that is circulating in the blood embolus
spread of microorganims and their toxins circulating in the blood septicemia
complication of a blood transfusion that can be fatal transfusion reaction
Loss of a large amount of blood in a short time Hemorrhage
low blood pressure that occurs when you stand up hypotension
medicine that stimulates the kidneys to increase secretion of urine diuretic
removal of whole blood from the body and separation of the blood's cellular elements plasmapheresis
Created by: tonyawiltshire