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Physiology II - PB 3325
Course Director: Mrs. Kay Brashear

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Exam Reviews

Physiology II - PB 3325

STUDY GUIDE QUIZ 1

LAB EXERCISE 1: CARDIAC CYCLE

There are no questions on this lab.

LAB EXERCISE 2: BIOPAC INFORMATION LAB

1. Know the function of the three icons described in the lab manual.
2. Know how each measurement tool is used to make measurements.
3. Information under Measurement windows and Other Screen functions:
            How would a channel number be selected?
            How would measurement tools be selected?
            How would a recording be autoscaled?
            Where would you go to print?

How would you restore the original recording?

LAB EXERCISE 3 ELECTROCARDIOGRAM

1. ECG Analysis:
Be able to answer any of the questions in the lab manual about the ECG.

2. Mean Electrical Axis
a. If given information about a Lead I and Lead III QRS complex, understand a mean electrical axis and how you used a triaxial reference system. You will not be required to plot a mean electrical axis on a lab quiz.

b. Be able to determine if a mean electrical axis is normal, indicates a left axis deviation or indicates a right axis deviation.

LAB EXERCISE 4 EMG, DYNAMOMETRY AND ECG CASE STUDIES

1. EMG and Dynamometry

a. Know the definition of EMG and Dynamometry. Know the units for each and

be able to recognize an EMG or dynamometry recording.

b. What factor determines grip strength?

c. Be able to answer all of the questions in the lab manual about EMG and Dynamometry.

2. Motor Unit Recruitment

a. Know the classifications and characteristics of the three types of motor units and the fiber type they innervate.

b. Know the order of motor unit recruitment.

c. How is the EMG amplitude related to motor unit recruitment? Be able to identify a recording of motor unit recruitment.

d. Be able to answer all of the questions in the lab manual about motor unit recruitment.

3. Muscle Fatigue

a. What are the major causes of muscle fatigue?

b. How do fatigue mechanisms differ for short-term intense exercise versus prolonged

submaximal exercise?

c. What changes in the EMG and Dynamometry were observed as fatigue occurred?

d. Be able to identify a recording of fatigue.

e. Be able to answer all of the questions in the lab manual about muscle fatigue.