Attendance
Attention, Cooperation, comunication
Written test (about 3 basic questions)
Evaluation and discussion of data (One file from all topics
sent to Homework Voults in IS)
To get credits from Bi3030cen, you will need:
Thursday, 4th January, 2024
8:30 - 12:00 Vácha - electrocardiography (ECG), blood
pressure and plethysmography. Medalová - Blood
groups
13:00 - 17:00 Medalová - glycaemia, blood cells,
Friday, 5th January,
8:30 - 12:00 Hyršl - Muscles, total proteins, Tomanová
- sensory system,
13:00 - 17:00 Tomanová - reflexes, Dobeš - metabolism
and pulmonary ventilation
Animal Physiology - practical course Bi3030cen
Elektro Cardio Graphy
How voltage is generated?
Nodes and conduction system
Cardiac Impulse Generation
and Conduction
Wave P – atrial depolarisation
QRS Complex – ventricular
Depolarisation
Wave T – ventricular
repolarisation
Einthoven’s triangle
Vector loop
Video
Remember intervals:
PQ: 0.12 – 0.2s
QRS: max 0.1s
Where is the problem if PQ /
QRS takes too long?
Electric heart axis
Remeber angles:
-30° - +120° is normal
Infarction:
ST segment elevation
Ventricular Extrasystole
Atrial Flutter
Ventricular Fibrilation
Ventricular arrest
Infarction of Myokard
• coronary vessels blocked
• limited oxygen supply
• necrosis are irreversible
In the picture, we can see a transversal
cross-section of the heart (right and left
ventricles are visible). The ventricular
myocardium is affected by infarction.
Extensive tissue necrosis appears as
lighter areas in the muscle. This is an
extensive anterior scar; the entire wall is
affected.
IM accute
IM chronic
Bundle branch block
QRS too long
Experiment
Normal record, note:
Pulse rate
Arrythmia?
Extrasystols?
Shape and length of QRS complex
Length of PQ interval
Electrical axis
Table of Results
Fill in and discuss
INITIALS PULSE (/min) PQ (ms) QRS (ms) AXIS (°)