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Cardiovascular and Lymphatic Systems
Ch.10
132
Medical
Undergraduate 1
03/18/2011

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Term
heart
Definition
muscular organ size of fist. located behind sternum and between lungs. pumping action of heart circulates blood throughout body. consists of two upper chambers, right atrium, left atrium, and two lower chambers, r.ventricle, l.ventricle. valves of the heart keep blood flowing in one direction. cardiac septum separates r/l sides of the heart
Term
tricuspid valve
Definition
located between r.atrium and r.ventricle
Term
bicuspid valve
Definition
located between l.atrium and l.ventricle. aka mitral valve
Term
semilunar valves
Definition
located between the right ventricle and the pulmonary artery and between l.ventricle and aorta
Term
pericardium
Definition
two layer sac (pericardial sac) covering the heart (pericardial fluid allows layers to move without friction]
Term
visceral pericardium
Definition
lies closest to the myocardium
Term
epicardium [parietal pericardium]
Definition
lines the pericardial sac
Term
myocardium
Definition
middle, thick, muscular layer
Term
endocardium
Definition
inner lining of the heart
Term
blood vessels
Definition
tubelike structures that carry blood throughout the body
Term
arteries
Definition
blood vessels that carry blood away from the heart. all arteries, with the exception of the pulmonary artery, carry oxygen and other nutrients from the heart to the body cells. the pulmonary artery, in contrast, carries carbon dioxide and other waste products from the heart to the lungs
Term
arterioles
Definition
smallest arteries
Term
aorta
Definition
largest artery in the body, oigination at the left ventricle and descending through the thorax and abdomen
Term
veins
Definition
blood vessels that carry blood back to the heart. all veins, with the exception of pulmonary veins, carry blood containing carbon dioxide and other waste products. pulmonary veins carry oxygenated blood from the lungs to the heart
Term
venules
Definition
smallest veins
Term
venae cavae
Definition
largest veins in the body. the inferior vena cava carries blood to the heart from body parts below the diaphragm, and the superior vena cava returns the blood to the heart from the upper part of the body
Term
capillaries
Definition
microscopic blood vessels that connewct arterioles with venules. materials are passed between the blood and tissue throughb the capillary walls
Term
blood
Definition
composed of plasma and formed elements, such as erythrocytes, leukocytes, and thrombocytes [platelets]
Term
plasma
Definition
liquid portion of blood in which cells are suspended
Term
erythrocytes
Definition
red blood cells that carry oxygen
Term
leukocytes
Definition
WBCs that fight infection
Term
platelets [thrombocytes]
Definition
one of the formed elements in the blood that is responsible for aiding in the clotting process
Term
lymph
Definition
transparent, usually colorless, tissue fluid
Term
lymph nodes
Definition
small, spherical bodies made up of lymphoid tissue. found singularly or may be grouped together. nodes act as filters in keeping substances such as bacteria from the blood.
Term
spleen
Definition
located in the left side of the abdominal cavity between stomach and diaphragm. in adulthood, spleen is the largest lymphatic organ in body.
Term
thymus gland
Definition
one of the primary lymphatic organs, it is located anterior to the ascending aorta and posteiror to the sternum between the lungs. it plays an important role in the development of the body's immune system, particularly from the infancy to puberty. around puberty the thymus gland atrophies into connective tissue and does not function
Term
angi/o
Definition
vessel [usually refers to blood vessel]
Term
aort.o
Definition
aorta
Term
arteri/o
Definition
artery
Term
atri/o
Definition
atrium
Term
cardi/o
Definition
heart
Term
lymph/o
Definition
lymph, lymph gland
Term
phleb/o, ven/o
Definition
vein
Term
plasm/o
Definition
plasma
Term
splen/o
Definition
spleen
Term
thym/o
Definition
thymus gland
Term
valv/o, valvul/o
Definition
valve
Term
ventricul/o
Definition
ventricle
Term
ather/o
Definition
yellowish, fatty plaque
Term
ech/o
Definition
sound
Term
electr/o
Definition
electricity, electrical activity
Term
isch/o
Definition
deficiency, blockage
Term
therm/o
Definition
heat
Term
thromb/o
Definition
clot
Term
brady-
Definition
slow
Term
tachy-
Definition
fast, rapid
Term
-ac
Definition
pertaining to
Term
-apheresis
Definition
removal
Term
-crit
Definition
to separate
Term
-graph
Definition
instrument used to record
Term
-odynia
Definition
pain
Term
-penia
Definition
abnormal reduction in number
Term
-poiesis
Definition
formation
Term
-sclerosis
Definition
hardening
Term
acute coronary syndrome [ACS]
Definition
sudden symptoms of insufficient blood supply to the heart indicating unstable angina or myocardial infarction
Term
anemia
Definition
reduction in the amount of hemoglobin in the red blood cells
Term
aneursym
Definition
ballooning of a weakened portion of an arterial wall
Term
angina pectoris
Definition
chest pain, which may radiate to the left arm and jaw, that occurs when there is an insufficient supply of blood to the heart muscle
Term
cardiac arrest
Definition
sudden cessation of cardiac output and effective circulation, which requires cardiopulmonary resuscitation [CPR]
Term
cardiac tamponade
Definition
acute compression of the heart caused by fluid accumulation in the pericardial cavity
Term
coarctation of the aorta
Definition
congenital cardiac condition characterized by a narrowing of the aorta
Term
congenital heart disease
Definition
heart abnormality present at birth
Term
congestive heart failure [CHF]
Definition
inability of the heart to pump enough blood through the body to supply the tissues and organs
Term
coronary occlusion
Definition
obstruction of an artery of the heart, usually from atherosclerosis -can lead to heart attack
Term
deep vein thrombosis [DVT]
Definition
condition of thrombus in a deep vein oif the body. most often occurs in lower extremities
Term
dysrhythmia
Definition
any disturbance or abnormality in the heart's normal rhythmic pattern --arrhythmia
Term
embolus
Definition
blood clot or foreign material, such as air or fat, that enters the bloodstream and moves until it lodges at another point in the circulation
Term
fibrillation
Definition
rapid, quivering, noncoordinated contractions of the atria or ventricles
Term
hemochromatosis
Definition
an iron metabolism disorder that occurs when too much iron is absorbed from food, resulting in excessive deposits of iron in the tissue. can cause cognestive heart failure, diabetes, cirrhosis,or cancer of the liver
Term
hemophilia
Definition
inherited bleeding disease most commonly caused by a defiency of the coagulation favtor VIII
Term
hemorrhoid
Definition
varicose vein in the rectal aera, which may be internal or external
Term
hodgkin disease
Definition
malignant disorder of the lymphatic tissue characterized by progressive enlargement of the lymph nodes, usualyl beginning in the cervical nodes
Term
hypertensive heart disease [HHD]
Definition
disorder of the heart brought about by persistent high blood pressure
Term
intermittent claudication
Definition
pain and discomfort in calf muscles while walking. conditiion seen in occlusive artery disease
Term
leukemia
Definition
malignant disease characterized by excessive increase in abnormal white blood cells formed in bone marrow
Term
mitral valve stenosis
Definition
narrowing of the mitral [bicuspid] valve from scarring, usually caused by episodes of rheumatic fever
Term
myocardial infarction [MI]
Definition
death of a portion of the myocardium caused by lack of oxygen resulting from an interrupted blood supply [aka heart attack]
Term
peripheral arterial disease [PAD]
Definition
disease of the arteries, other than those of the heart and brain, that affects blood circulation, such as atherosclerosis and raynaud disease. most common symptom of peripheral atherosclerosis is intermittent claudication
Term
rheumatic fever
Definition
inflammatory disease, usually occuring in children and often after an upper respiratory tract streptococcal infection
Term
rheumatic heart disease
Definition
damage to the heart muscle or heart valves caused by one or more episodes of rheumatic fever
Term
sickle cell anemia
Definition
a herediaty, chronic hemolytic disease characterized by crescent or sickle shaped RBCs
Term
varicose veins [varicosities]
Definition
distended or turtuous veins usually found in the lower extremities
Term
aneurysmectomy
Definition
surgical excision of an anuerysm
Term
bone marrow transplant
Definition
infusion of normal bone marrow cells from a donor with matching cells nad tissue toa recipient with a certain type of leukemia or anemia
Term
cardiac pacemaker
Definition
battery-powered or nuclear-powered apparatus implanted under the skin to regulate the heart rate
Term
coronary artery bypass graft [CABG]
Definition
surgical technique to bring a new blood supply to heart muscle by detouring around blocked arteries
Term
coronary stent
Definition
a supportive scaffold device implanted in the coronary artery. used to prevent closure of the artery after angioplasty or atherectomy
Term
defibrillation
Definition
application of an electric shock to the myocardium throguh the chest wall to restore normal cardiac rhythm
Term
embolectomy
Definition
excision of an embolus or clot
Term
femoropopliteal bypass
Definition
surgery to establish an alternate route from femoral artery to popliteal artery to bypass an obstruction
Term
hemorrhoidectomy
Definition
excision of hemorrhoids, the varicosed veins in the rectal region
Term
implantable cardiac defibrillator
Definition
a device implanted in the body that continuously monitoprs the heart rhythm. if life-threatening dysrhythmias occur the device delivers an electri shock to convert the dysrhythmia back to a normal rhythm
Term
intracoronary thrombolytic therapy
Definition
an injkection of an intravenous medication to dissolve blood clots in coronary [blood] vessels
Term
laser angioplasty
Definition
the use of light amplification by stimulated emission of radiation [laser beam] to open blocked arteries, especially in lower extremities
Term
mitral commissurotomy
Definition
surgical procedure to repair a stenosed mitral valve by breaking apart the leaves [commissures] of the valve
Term
percutaenous transluminal coronary angioplasty [PTCA]
Definition
procedure in which a balloon is passed through a blood vessel into a coronary artery to the area were plaque is formed. inflation of the balloon compresses the plaque agasinst the vessel wall, expanding the inner diameter of the blood vessel, which allows the blood to circulate more freely aka balloon angioplasty
Term
digital subtraction angiography [DSA]
Definition
a process of digital x-ray imaging of the blood vessles that
subtracts' or removes structures not being studied
Term
doppler ultrasound
Definition
a study that uses sound for detection of blood flow within the vessels. used to assess intermittent claduication, deep vein thrombosis, and other blood flow abnormalities
Term
exercise stress test
Definition
a study that evaluates cardiac function during physical stress by riding a bike or walkong on a treadmill. electrocardiographyh, echocardiography, and nuclear medicine scanning are three types of tests performed to measure cardiac funciton while exercising. echocardiography is fast becoming the preferred choice of tersting over electrocardiography
Term
single-photon emission computed tomography [SPECT]
Definition
a nuclear medicine scan that visualizes the heart from several different angles. a tracer substance such as sestamibi or thallium is injected intravenously. the SPECT scanner creates images from the tracer absorbed by the body tissues. it is used to assess damage to cardiac tissue
Term
thallium test
Definition
a nuclear medicine test used to diagnpse coronary artery disease and assess revascularization after coronary artery bypass surgery. thallium, a radioactive isotope, is injected into the body intravenoiusly; a radation detector is placed over the heart and images are recorded. thallium is taken up by the normal myocardial cells, but not in ischemia or infarction. these areas are identified as 'cold' spots on the images produced. thallium testing can be performed when the patient is at rest or it can be part of a stress test
Term
transesophageal echocardiogram
Definition
an ultrasound test that examines cardiac function and structure by using an ultrasound probe placed in the esophagus, which provides views of the heart structures
Term
cardiac catheterization
Definition
an examination to determin the condition of the heart and surrounding blood vessels. a catheter is passed into the heaert through a blood vessel and is used to record pressure and inject a contrast medium, enabling the visualization of the great vessels and the heart chambers. used mos frequently to evaluate chest pain and coronary artery disease
Term
impedance plethysmography [IPG]
Definition
measures venous flow of the extremities with a plethysmograph to detect clots by measuring changes in blood volume and resistance [impedance] in the vein. used to detect deep vein thrombosis
Term
sphygmomanometer
Definition
device used for measuring blood pressure
Term
stethoscope
Definition
an instrument used to heart sound produce by heart, lungs,m and bowels
Term
coagulation time
Definition
blood test to determine the time it takes for blood to form a clot
Term
complete blood test [CBC]
Definition
basic blood screening that includes tests on hemoglobin, hematocrit, red blood cell morphology [size and shape], leukocyte count, and white blood cell differential [types fo WBCs]
Term
hemoglobin [Hgb]
Definition
blood test used to determine the concentration of oxygen-carrying components in RBCs
Term
prothrombin time [PT]
Definition
blood test used to determine certain coagulation activity defects and to monitor anticoagulation therapy for patients taking coumadin, an oral anticoagulant medication.
Term
bone marrow biopsy
Definition
needle puncture to remove bone marrow for study, usually from the sternum or iilium. used to diagnose blood cell diseases, such as leukemia and anemia
Term
auscultation
Definition
hearing sounds within the body through a stethoscope
Term
blood pressure [BP]
Definition
pressure exerted by the blood against blood vessel walls. a blood pressure measurment writting as systolic pressure [120]/diastolic pressure [80]
Term
cardiopulmonary resuscitation [CPR]
Definition
emergency procedure consisting of artifical ventilation and external cardiac massage
Term
diastole
Definition
phase in the cardiac cycle in which the ventricles relax between contractions
Term
extracorporeal
Definition
occurring outside the body. during open-heart surgery extracorporeal circulation occurs when blood is diverted outside the body to a heart-lung machine
Term
extravasation
Definition
escape of blood from the blood vessel into the tissue
Term
heart murmur
Definition
a short-duration humming sound of cardiac or vascular origin
Term
hypotension
Definition
blood pressure that is below normal [less than 90/60]
Term
hypertension
Definition
BP that is BOV normal [140/90]
Term
lumen
Definition
space within a tubular part or organ, such as the space within a blood vessel
Term
occlude
Definition
to close tightly, to block
Term
percussion
Definition
tapping of a body surface with the fingers to determine the density of the part beneath
Term
systole
Definition
phase in the cardiac cycle in which the ventricles contract
Term
vasoconstrictor
Definition
agent or nerve that narrows the blood vessels
Term
vasodilator
Definition
agent or nerve that enlarges the blood vessels
Term
venipuncture
Definition
puncture of a vein to remove blood, instill a medication, or start an intravenous infusion
Term
anticoagulant
Definition
agent that slows clotting process
Term
dyscrasia
Definition
abnormal or pathologic condition of blood
Term
hemorrhage
Definition
rapid flow of blood
Term
plasma
Definition
liquid portion of blood in which elements or cells are suspended and that contains some of the clotting factors
Term
serum
Definition
liquid portion of the blood without the clotting factors
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