Seven - PHIZ 206 OCKALI PDF

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PHIZ 206 OCKALI...

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Lab 7: Respiratory Cycle I

RESPIRATORY CYCLE I DATA REPORT Date: ___/___/___ Student’s Name: _________________________________

Lab Section: ____________

I. Data and Calculations Subject Profile Name: ___________________________________________ Age: ______

Height:_____________

Gender: __Male __Female Basic statistics ∑ xi mean= n

√

S . D .= Example:

xi is the value number i and n is the total number of values

∑ ( x i− ´x )

2

n−1 2+2.7 + 2.2 =2.3 3 SD = 2 2 (2−2.3) +(2.7 −2.3 ) +( 2.2 −2.3)2 0.09 + 0.16 + 0.01 = =0.3 3−1 2 Mean =

Example: Given the values: X1=2, X2=2.7, X3=2.2

√

√

A. Eupnea (Normal Breathing - Segment I).

Complete table with values for each cycle. Calculate the means for Segment1: (10 points) Parameter Inspiration Duration Expiration Duration

Measurement

Total Duration

∆T (in s)

Breathing Rate

BPM

Cycle 1

Cycle 2

Cycle 3

Mean

S.D

∆T (in s) ∆T (in s)

Revised: 2014-03-17

Lab 7: Respiratory Cycle I

B. Comparison of Ventilation Rates and temperature changes (Segments 2-4)

Complete table with measurements from three cycles of segments 2, 3, and 4, and calculate the means (10 points) Measurement

Hyperventilation duration

ΔTemp

Hypoventilation duration

ΔTemp

Cough

Read Aloud

duration

ΔTemp

Cycle 2

X

X

Cycle 3

X

X

duration

ΔTemp

Cycle 1

mean S.D.

C. Relative Ventilation Depths (Segments 1-4) Complete table with measurements from three cycles of segments 1, 2, 3, and 4, and calculate the means (10 points) Depth

Cycle 1 p-p

Eupnea Segment 1 Hyperventilation Segment 2 Hypoventilation Segment 3 Cough Segment 4

Cycle 2 p-p

Cycle 3 p-p

X

X

Mean

SD

X

D. Association of Respiratory Depth and Temperature (Segments 1-3) Complete table with measurements from segments 1, 2, and 3 (10 points) Measurement

Ch.

Maximum ∆Temp

p-p

During Eupnea

After Hyperventilation

After Hypoventilation

Revised: 2014-03-17

Lab 7: Respiratory Cycle I maximum inspiration maximum ∆Temp ∆time interval

II. Questions (10 points each) E. If the subject holds his/her breathe after hyperventilation or hypoventilation. In which case he/she will be able to hold it for a longer period of time? Explain your answer. Hyperventilation, because your body needs to retain more CO2 oh, so you would hold your breath longer.

F. Define apnea vera and describe the physiological process that causes it. Apnea Vera is the temporary cessation of breathing after voluntary hyperventilation

G. In which parts of the respiratory cycle is the air temperature highest and lowest? Explain why the temperature varies with the respiratory cycle. Temperature is highest during expiration and lowest during inspiration. Inhaling brings in cooler air, exhaling pushes that warm air.

H. List and explain three difference between hypoventilation and hyperventilation. Hypoventilation: breathing rate is slow and shallow, lungs get more CO2, hard to expel out Hyperventilation: breathing rate is fast and deep, lungs are getting rid of CO2, elevated blood pH and O2 levels.

I. What modifications of the breathing cycle occur when reading aloud? Explain. Expiration is what gets modified when reading aloud. The air that is used for breathing out has to pass over vocal cords now, in order to produce any sound.

J. During eupnea, did the subject inspire immediately after the end of expiration? Was there a pause? Explain your answer. Yes, there was. Pressure in the lungs is equal to the pressure in the atmosphere.

Bonus: How does ventilation regulate blood pH? They are being breathed in is usually cooler than the body, so it regulates the pH.

Revised: 2014-03-17...