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NPB101L Practical Review

Paral pressures of gases in atmosphere and blood

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Unformatted text preview: merging face in cold water WHY? •  Receptors on the face increase ac&vity of Sympathe&c and Parasympathe&c nervous systems •  Slows heart rate and limits blood flow to body to conserve Oxygen Lab 5 – Electrical and Mechanical Proper&es of the Frog Heart Physiology 1.  Heart anatomy – human and frog 2.  Excita&on- contrac&on coupling, systole, diastole, conduc&on pathways, Frank- Starling rule, latency period 3.  Bradycardia, vagal escape, ectopic cells 4.  ERP, RRP, extrasystolic contrac&on, compensatory pause 5.  Autonomic innerva&on of the heart and the effects Experiments Part 1: Extrasystolic Contrac&ons (ESC) •  S&mulated ventricle in early or late diastole to get an extrasystolic (pre- ventricular) contrac&on Smaller/Larger •  ESC will have a ___________ tension than normal contrac&on and post- ESC will have a LARGER __________tension •  There will be a longer pause (compensatory pause) between contrac&ons •  Compensatory pause in ESC from early diastole LONGE...
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