Swimming, Diving and Echolocation
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Swimming, Diving and Echolocation
description
Swimming, Diving and Echolocation. Swimming. Streamlined bodies. Breathing. Quick breaths Can empty and re-fill lungs in 2 seconds!!! Renew ~90% of air in single breath Humans ~10%. Diving Physiology. More blood than non-diving mammals More hemoglobin More myoglobin. Dive Reflex. - PowerPoint PPT Presentation
Transcript of Swimming, Diving and Echolocation
Swimming, Diving and Echolocation
Swimming• Streamlined bodies
Breathing• Quick breaths
– Can empty and re-fill lungs in 2 seconds!!!
• Renew ~90% of air in single breath– Humans ~10%
Diving Physiology• More blood than non-diving mammals
– More hemoglobin– More myoglobin
Dive Reflex• Heart rate slows
– Bradycardia• Blood flow reduced
– Vasoconstriction• Increase inlactic acid
Dive Reflex• Collapsible thoracic cavities
The Bends• Decompression Sickness
– N2
Echolocation• 1500
m/sec
• Object is 3 sec away
• 4500 m away
Spermaceti Organ
Essex
