Marine MammalMarine Mammal

DIVINGDIVING RESPONSE RESPONSE

Laboratory Purpose:Laboratory Purpose:

Discuss the Diving ResponseDiscuss the Diving Response Test our own responseTest our own response Collect dataCollect data Graph & Analyze the DataGraph & Analyze the Data

What is the Diving What is the Diving Response?Response?

What happens to What happens to the physiology of the physiology of the marine the marine mammals?mammals?

Why is this useful Why is this useful to them when to them when they are diving?they are diving?

DATA COLLECTION:DATA COLLECTION:

R E S TIN GP U L S E

(C on tro l ? )

B R E A TH H O L DP U L S E

A fte r R ecoveryB en d in g O ver

C O L DH E A D D IP

P U L S E

C B LH eart R a te M on ito r

M easu res P u lse R a te

LABORATORY PHOTOS:LABORATORY PHOTOS:The CBL System: The Heart Rate Monitor

Students at Work The Head Dip

DATADATA ANAYSIS ANAYSIS

Collect the dataCollect the data Compute the % Compute the %

difference from difference from resting pulseresting pulse

Graph your Graph your results results The graph to the The graph to the right shows two persons pulse right shows two persons pulse rate as BPM at REST I, Breath rate as BPM at REST I, Breath hold II, Recovery III, +Bending hold II, Recovery III, +Bending IV, and Cold Dip VIV, and Cold Dip V

0

10

20

30

40

50

60

70

I II III

IV V

Pulse Rate in BPM

NoDipColdDip

DRAW YOUR OWN DRAW YOUR OWN CONCLUSIONS !CONCLUSIONS !

What can cause pulse rate to vary?What can cause pulse rate to vary? Which set of conditions triggered Which set of conditions triggered

the greatest response?the greatest response? Is the Marine Mammal Diving Is the Marine Mammal Diving

Response observed in humans?Response observed in humans? How can it help persons How can it help persons

survive drowning? survive drowning?

PROGRAM PROGRAM REFERENCESREFERENCES

Kleene,S. 1989. “The Diving Seal”, Kleene,S. 1989. “The Diving Seal”, Sea Frontiers, Nov.Dec.Sea Frontiers, Nov.Dec.

Holman, S. and Masterman, D. Holman, S. and Masterman, D. 1997. Biology with CBL. Vernier 1997. Biology with CBL. Vernier Software. Portland, Oregon.Software. Portland, Oregon.

Key Clip Art 25,000 by Soft KeyKey Clip Art 25,000 by Soft Key Microsoft Power Point, Microsoft Microsoft Power Point, Microsoft

Corp.Corp.