Flashcards
F211: Transport in animals keywords and info
Cards in this deck (26)
- 1Transport in animals keywords1. the circulatory system
2. heart basics
3. electrical activity of the heart
4. blood vessels
5. haemoglobin - 2AffinityTendency to bind
- 3Single Circulatory SystemBlood only passes through heart once
- 4Double Circulatory SystemBlood passes through heart twice
- 5Open Circulatory SystemBlood isn't enclosed in blood vessels all the time, instead it flows freely through the body cavity
- 6Closed Circulatory SystemBlood is always enclosed inside blood vessels
- 7Atrio-Ventricular ValvesLink atria to ventricles
- 8Semi-Lunar ValvesLink Ventricles to the pulmonary artery and aorta
- 9ValvesClose chamber to stop blood flowing the wrong way. Close due to pressure difference : lower ----> higher closes valve
- 10Hydrostatic PressurePressure created by a fluid pushing against the side of a container
Arteries - 11Cardiac CycleOngoing sequence of contraction and relaxation of atria and ventricles that keeps blood continuously circulating around the body.
- 12SystoleCardiac Concentration
- 13DiastoleCardiac Relaxation
- 14MyogenicCan contract and relax without receiving signal from nerves
- 15ECGElectrocardiogram. Graph showing the electrical activity of the heart muscle during a cycle
- 16SANSino-Atrial Node. Sets the rhythm of the heartbeat by sending regular waves of electrical activity over the atrial walls- both atria contract at the same time
- 17AVNAtrio-Ventricular Node. Passes the waves of electricity from the SAN to the bundle of His
- 18Bundle of Hisgroup of muscle fibres which conduct the waves of electrical activity to the purkyne tissue
- 19Purkyne Fibrescarry the waves of electrical activity up the muscular walls of the ventricles
they contract simultaneously - 20ElectrocardiographMachine which records the electrical activity of the heart by tracking changes in electrical charge using electrodes placed on the chest - depolarises and repolarises
- 21Electrocardiogram (ECG)Trace produced by electrocardiograph
- 22P Wavecaused by contraction (depolarisation) of atria
- 23Depolarisationlosing electrical charge - contraction
- 24RepolarisationRegaining charge - relaxation
- 25QRS Complexmain peak of heartbeat
contraction (depolarisation) of ventricles
- 26T waverelaxation (repolarisation) of ventricles
Information
- Description
- UNIT F211 OCR AS BIOLOGY, module 2 transport in animals keywords. not finished yet. hope it helps
- Created by
- Gurdev Manchanda
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