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90 Cards in this Set
- Front
- Back
Cardiovascular System |
Controls environment of the cells |
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4 chambered heart |
complete separation of pulmonary and systemic circuts |
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Pulmonary |
goes to lungs |
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Systemic |
everywhere else but lungs |
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Pericardial |
the heart sits in a sac filled with pericardial fluid |
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Cardiac Valve |
Job is to prevent backflow |
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Regurgitation |
Aka Backflow |
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Insufficiency |
The valve does not close fully |
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Stenosis |
Failure of valve to open fully, narrowing |
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Heart murmur |
Blood spurting through a narrowing/ opening |
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Emptying phase |
Insufficiency of mitral valve |
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Incompetent Valve |
Does not close or open fully (not doing it's job) |
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Refractory Period |
Time period when you cannot re-stimulate it |
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Pacemaker |
Area of the heart within the highest auto rhythmic rate |
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Sinoatrail (SA) node |
Normal pacemaker if the heart |
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Ectopic |
When the pacemaker is somewhere else besides the SA node |
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AV node Delay |
When the AV node stops for a 0.1 second delay |
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Arrhythmia |
abnormal heart rate |
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Ectopic focus |
Pacemaker somewhere other then SA node |
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Extra sytole |
Extra beat of the heart |
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Premature Ventricular Contraction |
Extra Ineffective beat |
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Systole |
Contraction phase of cardiac cycle/ empty phase |
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Diastole |
Relaxation phase of cardiac cycle/ fill phase |
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Heart sounds |
Closure of cardiac valve |
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Lub S1 |
Closure of atrioventricular valve (lower tone) |
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Dup S2 |
Closure of Semilunar Valve (higher pitch) |
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Elctrocardiogram |
Recording of electrical activity of the heart |
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P |
Atrial depolarization |
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QRS Complex |
Ventricular Depolarization |
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T |
Ventricular Repolarization |
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Systolic Pressure |
Ventricular pressure with regard to systole |
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Cardiac Output |
Volume of blood you pump per min |
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Cardiac Reserve |
Difference between max Co and resting Co |
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MAP = Co X Res (volume accounts too) |
Mean Arterial Pressure |
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Afterload |
Pressure you are pumping against |
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Preload |
End Diastolic Volume |
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Stroke Volume |
End Diastolic volume - End Systolic Volume |
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Starling's Law of the Heart |
Within limits, increasing end diastolic volume causes increase force of contraction |
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3 ways to Regulate Blood pressure |
1: Neural 2: Hormonal 3: Renal/Kidney |
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Baroreceptors |
Located in carotid sinuses in aortic arch |
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Cardiac center |
Cardiac output in the neural feedback look |
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Vasomotor center |
Vasomotor tone, vasodialation, and vasoconstriction are PR in neural feedback loop |
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Barometric Pressure |
Atmosphere pressure |
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Aldosterone |
Save salt = save water = increase BP |
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ADH |
Saves water = increase BP |
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Epinephrine and Norepinephrine |
Increase HR = Increase BP |
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Angiotensionogen |
Plasma protein manufactured in Liver |
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Renin |
Splits angiotensionogen into angiotension I |
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Angiontension II causes |
-Increase vasoconstriction -Increase aldosterone |
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Hypertension |
Persistent elevation of systemic arterial pressure |
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High BP |
140/90 mmHg |
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Essential (Primary) Hypertension |
Hypertension of etiology (unknown) |
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Secondary Hypertension |
Known etiology Ex: Increased ADH, Aldosterone disease, kidney problems |
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Hypotension |
not enough force to drive blood to tissues |
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Low BP |
Systolic < 100mmHg |
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Syncope |
Fainting due to lack of cerebral blood flow |
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S&S of Syncope |
Pale Fatigued Lathargic Increased HR (Symp on) Sweating (Symp on) |
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Orthostatic Hypotension |
Body position hypotension Ex: laying down, blood moves easier then standing up (Decr BP laying : Incr BP standing) |
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Circulatory Shock |
Generalized inadequate tissue profusion |
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Ischemia |
Local lack of profusion |
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Infarction |
Death of tissue due to lack of blood supply |
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Heart failure |
Failure of the heart to pump adequately, does not matter what caused it |
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Congestive Heart Failure |
Not pumping so compensates by increasing volume (swelling) |
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Blood backsup ----- of the effected ventricle |
Upstream |
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Lymphatic system functions |
-Takes fluids out of intersteil fluid and returns to vascular system -Immunity |
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3 Levels of Lymphatic vessels |
1. Lymph capillaries 2. Lymph Vessels 3. Lymph Trunks |
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Lymph capillaries |
Very permeable Plasma proteins |
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Plasma contents |
91% H2O 7% Protein 2% Other |
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Plasma Proteins |
Albumins Globulins Fibrinogens |
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Albumins |
-Draws water into cardiovascular capillaries -Used for osmotic balance. Adema occurs if lose too much albumin Ex: Egg whites |
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Globulins |
alpha: transport proteins beta: transport protein gamma: antibodies |
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Fibrinogens |
Precursor of fibrin |
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Fibrin |
fiber of a clot |
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Lymph Vessels |
-Respiratory movement -Smooth muscle -Skeletal muscle pumping |
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Respiratory movement |
Boyles Law- when you breath in, pressure inside decreases and lymph pushes towards inside |
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Boyles Law |
|
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Smooth Muscle |
During a contraction of smooth muscle, volume decreases and pressure increases. This is to move lymph against gravity |
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Skeletal muscle pumping |
When the skeletal muscle contracts, it pushes blood and lymph back to the heart |
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Lymph Trunks |
Thoracic Duct and Right lymph duct |
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Thoracic Duct |
-cisterna chyli to Left subclavian -3/4 of the body |
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Right Lymphatic Duct |
Dumps into the right subclavian 1/4 of the body |
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Metastasis |
distance spread of a tumor by lymphatic or cardiovascular system |
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Spleen |
Largest lymph organ Disk shaped pulpy inside |
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Spleen functions |
-lymph node: make antibodies -site of RBC destruction -development of Immunity |
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Elephantiasis |
When a parasite gets stuck in the Inguinal lymph node and leg swells like an elephant |
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Immunity functions |
-Defense against pathogens -Removal of cell debris (like splinters) -Recognition of abnormal cells (surveillance, mutant) |
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Specific Immunity |
Antibody recognition, directed at a particular pathogen |
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Antigens |
-Immunocologically Recognized Chemical Grouping |
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Salk |
Discovered polio vaccine |
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Sabin |
discovered oral vaccine for polio. A weakened form but living when injected |