Lab 2 - Cardio

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Lab 2 - Cardi o﷯﷯﷯ ﷯﷯﷯

Created Feb 21, 2010
by aftonw

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	Side A	Side B
1	- The sequence of electrical and mechanical...	Cardiac cycle
2	- Divided into 2 main events: diastole...	Cardiac cycle
3	- Filling of the ventricles	Diastole
4	- Emptying of the ventricles	Systole
5	- Is pulsatile (owing to the intermittent...	Arterial blood pressure
6	- Generated during ventricular systole...	Peak pressure
7	- Referred to as the systolic pressure	Peak pressure
8	- Peak pressure	Systolic pressure
9	- minimum pressure occurs during ventricular...	Diastolic pressure
10	- the difference between systolic and...	pulse pressure
11	- shorter period	systole
12	- longer period	Diastole
13	- the pressure pulse wave is skewed slightly...	systole is shorter than diastole
14	- since the pressure pulse wave is skewed...	not simply the arithmetic mean of systole and diastole
15	- diastolic pressure +1/3 pulse pressure...	mean arterial pressure
16	- (systolic + 2 diastolic)/3	mean arterial pressure
17	- Involves instruments which enter the...	Direct measurement
18	- Depends upon the amount of pressure...	Indirect measurement
19	- Located in the upper arm, lies close...	Brachial artery
20	- The instrument used in the indirect...	Sphygmomanometer
21	- Consists of: o a compression...	Sphygmomanometer
22	- Used to measure the pressure within...	Manometer
23	- Is easily performed by determining...	Systolic arterial pressure
24	- If cuff pressure is then decreased...	Korotkoff Sounds
25	- First detected “tap”	Systolic pressure
26	- “swish” becomes muffled	Diastolic pressure
27	- Have valves along their courses	Veins and lymphatic ducts of extremities
28	- Prevent back flow	Valves
29	- A tourniquet is applied above the elbow...	Demo of Venous Valves
30	- When the veins are distended, the valves...	Demo of Venous Valves
31	- If one finger is pressed down on the...	Demo of Venous Valves
32	- If the valve is not functioning properly,...	Demo of Venous Valves
33	- Caused by leaky valves and are a common...	Varicose veins
34	- The recording of the current at the...	Electrocardiography
35	- The limbs serve as convenient attachment...	Electrocardiogram (ECG)
36	- Recorders measure the potential difference...	Electrocardiogram (ECG)
37	- The electrodes are positioned on the...	Lead II
38	- Measures the potential between electrodes...	Lead I
39	- Utilizes the left arm and left leg...	Lead III
40	- Are used in diagnosis of cardiac muscle...	Chest leads
41	- Baseline of the recording represents...	Iso-electric line
42	- Is produced by the generation of a...	Waveform (P, QRS and T)
43	- Starts at the SA node in the right...	Heart beat
44	- Is associated with the initial phase...	P wave
45	- When the wave of depolarization has...	P wave
46	- Generated by a momentary dipole	P wave
47	- There is no potential differenced recorded...	Between the P and Q waves
48	- Is associated with depolarization of...	QRS complex
49	- The amplitude is much greater than...	QRS complex
50	- Again a dipole is created across the...	QRS complex
51	- The recording returns to baseline because...	Between the S and T waves
52	- Occurs with repolarization of the ventricles	T wave
53	- The waveform has the same polarity...	T wave
54	- Opposite in direction to depolarization	T wave
55	- (1/time interval between R waves) x...	Heart rate
56	0.12-0.2 s	P-Q interval
57	0.06-0.10 s	QRS interval
58	0.32 s	S-T interval
59	72 bpm	Heart Rate
60	- An abnormally long P-Q interval indicates	Heart block
61	- A prolonged delay between depolarization...	Heart block
62	- A prolonged QRS complex interval or...	Conduction problems within the ventricular muscle (or purkinje system)
63	- A result of a pressure wave passing...	Pressure pulse recording
64	- The result of closure of the aortic...	Dicrotic notch
65	- To the right of the peak of the pressure...	Dicrotic notch
66	- What you feel when taking your pulse	Pressure pulse wave
67	- The radial and carotid pulse are	Out of phase
68	- The bulk of the heart muscle	Myocardium
69	- Fibres are arranged in layers of whorls...	Myocardium
70	- Upper 2 chambers of the heart	Atria
71	- Serve primarily a collecting function	Atria
72	- Significantly more muscular lower chambers	Ventricles
73	- Responsible for discharging blood into...	Ventricles
74	- Ejects into the systemic circuit (this...	Left Ventricle
75	- Conspicuously more muscular	Left Ventricle
76	- Certain characteristic sounds that...	Lub-dub
77	- Caused by the snapping shut of the...	First sound
78	- Caused by the closing of the semi-lunar...	Second sound
79	- Caused by defects in the heart valves	Heart murmurs
80	- Furnish info concerning the condition...	Heart sounds
81	- Specialized tissues within the myocardium,...	SA node (sino-atrial), AV node (atrio-ventricular), and the purkinje network
82	- Pacemaker of the heart	SA node
83	- Initiates depolarization	SA node
84	- Common bundle branches with their arborisations	Purkinje fibres
85	- Muscular contraction is always associated...	Electrical changes
86	- The resting muscle cell possesses	Polarized membrane
87	- The outside surface is positive, the...	Polarized membrane
88	- The heart at rest	Polarized membrane
89	- Covered outside with a layer of positive...	Polarized membrane
90	- The rate at which the cell repolarizes...	Be responsive
91	- A wave of negative charge spreads over...	SA node initiates depolarization
92	- Sweeps over and through the heart tissues...	Moving dipole
93	- Likewise sweeping repolarization follows...	Moving dipole