A&P 2 Lab Bio Pacs
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/49
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
50 Terms
Q: What does systolic pressure represent?
A: Pressure during ventricular contraction
Q: What does diastolic pressure represent?
A: Pressure during relaxation
Q: What artery is used for BP measurement?
A: Brachial artery
Q: What device measures BP?
A: Sphygmomanometer
Q: What causes Korotkoff sounds?
A: Turbulent blood flow
Q: When do Korotkoff sounds begin?
A: At systolic pressure
Q: When do Korotkoff sounds end?
A: At diastolic pressure
Q: Why is there no Korotkoff sound above systolic pressure?
A: Artery is fully closed
Q: Why is there no Korotkoff sound below diastolic pressure?
A: Flow is laminar (smooth)
Q: Pulse pressure formula?
A: Systolic − Diastolic
Q: Mean arterial pressure formula?
A: (Pulse Pressure / 3) + diastolic
Q: What causes heart sounds?
A: Valve closure + turbulence
Q: What is “Lub”?
A: AV valves closing
Q: What is “Dub”?
A: Semilunar valves closing
Q: When does Lub occur relative to ECG?
A: After QRS complex
Q: When does Dub occur?
A: After T wave
Q: What is systole?
A: Contraction
Q: What is diastole?
A: Relaxation
P wave
Atrial depolarization
QRS complex
Ventricular depolarization
T wave
Ventricular repolarization
Q: What is the pacemaker of the heart?
A: SA node
Q: What is the role of the AV node?
A: Delays signal so ventricles fill before contracting
Q: What structure carries signal from atria to ventricles?
A: AV bundle (Bundle of His)
Q: What distributes signal through ventricles?
A: Purkinje fibers
Q: What does an ECG measure?
A: Electrical activity of the heart
Q: Does ECG measure one cell or many cells?
A: Many cells (composite signal)
Q: What does the X-axis represent on ECG?
A: Time
Q: What does the Y-axis represent on ECG?
A: Voltage
Q: What is an interval?
A: Wave + baseline
Q: What is a segment?
A: Just baseline
Q: How long is one small box?
A: 0.04 sec
Q: How long is one big box?
A: 0.2 sec
Q: How do you calculate heart rate?
A: 60 ÷ R-R interval
Q: What is the isoelectric line?
A: Flat baseline (no electrical activity)
Q: How much is one small box in mV?
A: 0.1 mV
Q: What does spirometry measure?
A: Lung volumes and airflow
Q: What is tidal volume?
A: Normal breathing air
Q: What is IRV?
A: Extra air inhaled after normal inhale
Q: What is ERV?
A: Extra air exhaled after normal exhale
Q: What is residual volume?
A: Air left after max exhale
Q: VC formula?
A: IRV + TV + ERV
Q: IC formula?
A: TV + IRV
Q: FRC formula?
A: ERV + RV
Q: TLC formula?
A: VC + RV
Q: What is FEV₁?
A: Air exhaled in 1 second
Q: Normal FEV₁ %?
A: 75–85% of VC
Q: What happens to FEV in obstructive disease?
A: Decreases significantly
Q: What happens to lung volumes in restrictive disease?
A: Decrease
Q: Which disease traps air?
A: Obstructive
