lecture 2, parameters of blood vessels (lite ECG)

The exercise was created 2024-03-18 by feliciajonsssson. Question count: 42.

Click

Learn the words

Type

Spell the words

Listen

Listen

Games

Play games

Print

Exercise hard copy



Select questions (42)

Normally, all words in an exercise is used when performing the test and playing the games. You can choose to include only a subset of the words. This setting affects both the regular test, the games, and the printable tests.

All None

  • blood pressure in aorta 100 mmHg
  • blood pressure in arteries, in large circuit 70 mmmHg
  • blood pressure in large circuit, arterioles 35 mmHg
  • blood pressure in capillareis in large circuit 15 mmHg
  • blood pressure in veins in large circuit 0 to -3 mmHg
  • pulmonary circulation: blood pressure in pulmonary trunk 18-20 mmHg
  • blood pressure in pulmonary circulation in arterial end of capillaries 12 mmHg
  • blood pressure in end of capillaries of pulmonary circulation 6 mmHg
  • veins blood pressure, pulmonary circulation 2 mmHg
  • summary cross section area in aorta 4 cm2
  • capillaries cross sectional area, in large circuit 2000-3000 cm2
  • vena cava cross section 8 cm2
  • pulmonary circulation cross sectional area of capillaries 4000 cm2
  • linear velocit in aorta 0.5 m/s
  • linear velocity in capillaries 0.5 mm/s
  • linear velocity in vena cava 0.2 m/s
  • one of the three types of cardiac muscle cells is pacemaker cells which primarily job is to conduct impulses
  • pacemaker cells has automaticity which means that it can generate impulses itself
  • one of the 3 types of cardiomuscle cells is working myocardial cells which role is to contract to move blood in the heart
  • one of the 3 cells in the heart is endocrine cardiomyocytes which release ANP and BNP
  • ANP and BNP are released from atrium respectively ventricles, these are released when blood volume in the heart increases
  • sinoatrial node sends impulses to the AV node and bachmann´s bundle
  • the secondary pacemaker cells are atrioventricular node
  • the 3rd degree pacemaker cells are atrioventricular bundle
  • ... allows for synchronized contractions of both left and right side of the heart purkinje fibres
  • speed of impulse conduction in atria is 1 m/s
  • speed of impulse conduction in atrioventircular node is 0.1 m/s
  • in the atrioventricular node there is a delay in the impulse conudction which is good because it separates the atrial and ventricular contraction in time
  • speed of impulse conduction in the ventricles is 1-4 m/s
  • speed of impulse condcution in working myocardium is 0.3-0.5 m/s
  • automaticity in the sinoatrial node (frequency) 60-80 x/min
  • automaticity in atrioventricular node (frequency) 40-60 x/min
  • automaticity in atrioventricular bundle (frequency) 15-40 x/min
  • if atrioventricular node fails, we can use artificial pacemakers which helps to generate impulses for the heart contraction if the heart isnt conductiing impulses properly
  • duration of P wave ..-.. (provide unit, use . ) 0.06-0.1 s
  • duration of PQ segment ..-.. (provide unit, use . ) 0.04-0.1 s
  • duration of PQ interval ..-.. (provide unit, use . ) 0.12-0.2 s
  • duration of QRS complex ..-.. (provide unit, use . ) 0.06-0.1 s
  • duration of QT interval: WRITE smaller than ..-.. (provide unit, use . ) smaller than 0.3-0.45 s
  • amplitude for P wave: ..-.. (provide unit, use . ) 0.1-0.3 mV
  • amplitude for R wave: ..-.. (provide unit, use . ) 0.8-1.8 mV
  • amplitude for T wave: ..-.. (provide unit, use . ) 0.2-0.4 mV

All None

Shared exercise

https://spellic.com/eng/exercise/lecture-2-parameters-of-blood-vessels-lite-ecg.11989033.html

Share