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Carviovascular D
Cardiovascular set D
40
Science
Undergraduate 3
03/16/2012

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Cards

Term
Endocarditis is the result of what?
Definition
Blood infection
Term
What are a few tests that can be performed for endocarditis?
Definition
Blood Culture
Chest X-Ray
Complete blood count
Echocardiogram
Term
Explain what mitral stenosis is?
Definition
Mitral valve does not open fully, restricting blood flow.
Term
In mitral stenosis, blood may flow back into the _____?
Definition
Lungs
Term
What is it called when fluid builds up in the lungs?
Definition
Pulmonary Edema
Term
What fever is associated with Mitral Stenosis?
Definition
Rheumatic fever
Term
What kind of heart rythm is associated with Mitral Stenosis?
Definition
Irregularly irregular (random)
Term
Which wave is NOT visible in Mitral Stenosis?
Definition
P waves
Term
Digoxin is what type of chronotropic? (Negative or positive)
Definition
Negative
Term
Explain how something negatively chronotropic works?
Definition
Slows Heart Rate by decreasing electrical pulses in AV node.
Term
Explain how something positively inotropic works?
Definition
Incrases force of heart contracy by inhibition of Na+/K+ ATPase pump.
Term
Mitral Regurgitation
Explain what occurs in this condition
Definition
Mitral valve doesn't close completely, causing blood to flow backward.
Term
Name some treatments for mitral regurgitation
(4)
Definition
Antibiotics
Antihypertensive
Anticoagulant/Antiplatelt
Digitalis
Term
What makes up the fast mechanism of regulating arterial pressure?
Definition
Neural (Baroreceptor)
Term
What makes up the fast mechanism of regulating arterial pressure?
Definition
Hormonal (renin-antiogensin-aldosterone)
Term
Which cranial nerve is important in baroreceptor reflex?
Definition
CN 9
Term
What are the four effects that attempt to increase arterial pressure to normal?
Definition
1. Increase heart rate
2. Increases contractility and stroke volume
3. Increases vasoconstriction of arterioles
4. Increases vasoconstriction of veins
Term
What is an example of baroreceptor reflex?
Definition
Response to acute blood loss
Term
How is antiogensin II degraded?
Definition
Angiotensinase
Term
What is an example of Renni-angiotensin-aldosterone system?
Definition
Response of the RAA system to acute blood loss
Term
In cerebral ischemia, what increases in brain tissue?
Definition
PCO2
Term
How do chemoreceptors respond in vasomotor system (cerebral ischemia)?
Definition
Increase sympathetic outflow of heart
Term
Explain the steps of how Antidiuretic hormone work when there is too little water in blood.
Definition
Detected by hypothalamus, More ADH is secreted into pituitary gland, kidneys absorb less water from blood, less urine created, blood water level back to normal
Term
Other regulations of arterial blood pressure? (4)
Definition
1. Cerebral ischemia
2. Chemoreceptors in carotid and aortic bodies
3. Vasopressin (ADH)
4. Atrial natruiretic peptide (ANP)
Term
Atrial natruiretic peptide
What does it inhibit?
Definition
Renin secretion
Term
ANP
What does this reduce?
Definition
Aldosterone secretion
Term
What are the effects of ANP?
Definition
Relax Vasc. Smooth muscle (arterioles, venules).
Term
Location of capillary beds?
Definition
Junction of arterioles and capillaries.
Smooth muscle band (precapillary sphincter)
Term
How is blood flow regulated through the capillaries?
Definition
Contraction/Relaxation (arterioles, precapillary sphincters)
Term
How do large water soluble substances cross capillary wall?
Definition
Pinocytosis
Term
Where is the passage of protein permitted?
Definition
Liver, intestine (sinusoids)
Term
How do small water soluble substances cross the capillary wall?
Definition
Via water filled clefts
Term
Name some substances that can pass through the capillary wall? (3)
Definition
Water
Glucose
Amino Acid
Term
Function of lymph
Definition
Excess fluid of the capillaries is returned into circulation via the lymph
Term
What type of muscle aids in unidirectional flow of lymph?
Definition
Skeletal muscle contraction
Term
How does edema occur?
Definition
Volume of interstitial fluid exceeds capacity of lyphatic to return it to circulation.
(Excess filtration, blocked lymphatics).
Term
ECG Electrode Lead 1
Definition
B/w Right and Left Arm
Left Arm +
Term
ECG Electrode Lead 2
Definition
B/w Right arm and Left Leg
Left Leg +
Term
ECG Electrode Lead 3
Definition
B/w Left arm and left leg
Left leg +
Term
What waves are affected with Myocardial Infarction?
Definition
Larger negative Q wave
ST segment (elevation or depression)
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