Be able to assess the following parameters in an ECG tracing: PR Interval = 0.12-0.20 QRS Interval = 0.04-0.12 QT Interval = Less than 0.44 Normal heart rate (sinus rhythm) = 60-100 beats per minute

1. Identify and color the following in the ECG image below: ● three P waves (color blue) ● ● ● ● three QRS complexes (color green) three T waves (color a different blue) three PR segments (color red) three ST segments (color purple) two full TP segments (color pink) two RR intervals (color brown) (RR interval indicates the time for one heartbeat. The RR interval is measured from the peak of one QRS to the peak of the next QRS). ملله

Consider a person standing up from a supine position. How do each of the following parameters change in the first seconds after standing compared to what they were at rest, before they return to normal set point? Total Peripheral Resistance (TPR) Venous Return End Diastolic Volume (EDV) Stroke Volume Heart Rate Mean Arterial Pressure (MAP) [Choose ] ✓ [Choose ] No change Decrease Increase [Choose ] [Choose ] [Choose ]

< 11:22 My Files Lecture13Activities U.pdf Superior vena cava Activity 2 Sheep Heart Dissection Pre-lab Use the following link to label the pictures below: https://www.youtube.com/watch?v=-ZbXiOrlFJI ← Chordae tendinae Chordae tendinae Left anterior descending artery Diagonal branch PRO ☑ ☑ Nils Tack |||