Biophysics 2
Biophysics 2
Biophysics 2
Kartei Details
Karten | 41 |
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Sprache | English |
Kategorie | Medizin |
Stufe | Universität |
Erstellt / Aktualisiert | 09.02.2020 / 01.03.2020 |
Weblink |
https://card2brain.ch/box/20200209_biophysics_2
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- A robust excess of extracellular potassium concentration ([K]out) is known to lead to the cardiac arrest. Indicate most important cause of this effect:
- Indicate the fastest mechanism of communication between two cells
- Nicotinic Acetylcholine receptors are:
- Indicate the name of the disorder characterized by the following symptoms: muscle fatigability, deficit of acetylcholine receptors at the muscular endplates :
- In myothonia congenita the skeletal muscle fibers are:
- Indicate the type of channel responsible for a slow depolarization of the diastolic potential in the sino-atrial node
- The unipolar electrode is placed above the excitable tissue in which the action potential propagates as indicated by the arrow and distribution of charges. What happens with the signal measured with the electrode when the excitation frontline is reaches the point immediately below the electrode ?
- Which electrocardiogram wave can be attributed to the atrial diastole
- If we measure, for the sake of experiment, the blood pressure to a subject in the standing position and the cuff is placed on the part of the arm kept high above the head, then the measured values of systolic/diastolic pressures will read:
- Indicate the orders of magnitude for number of photoreceptors and ganglion cells in the human eye retina
- When the degree of order in the isolated system increases
- When cells are suspended in a hypotonic solution:
- The incoming acoustic stimulus has induced a deformation of the basilar membrane very close to the oval window. We may deduce that the detected voice
- Relaxation time T1 describes the process (symbols: Mz is the component of magnetization M parallel to external magnetic field Bo)
- Find the true statement
- Human ear shows the highest sensitivity for sounds characterized by:
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- Blood velocity in the vessels can be estimated when applying:
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- Indicate proper statement regarding X and gamma rays
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- The feature that a lens focuses the light not at a focal point but at a blurred spot is referred to as:
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- Typically, the wavelength of absorbed photon is:
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- The energy of interaction between the magnetic moment and the external magnetic field is minimal when:
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- In the MRI scanning, the gradients of magnetic field are used to:
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- Indicate in which units is measured the ECG signal:
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- Indicate where in the heart tissue, the propagation of excitability occurs with the lowest velocity
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- Sensory neurons are typically:
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- In the electrolyte, local intensity of electric field
- Assuming that the membrane voltage is 100 mV and the membrane thickness is 10 nm, the intensity of electric field is:
- The intracellular concentration of chloride ions is increased while the extracellular one remains unchanged. Indicate how this change will affect the value of the equilibrium potential for chloride ions (VCl).
- In an electrophysiological experiment the number of moles of electrical charges per membrane surface unit and per unit time is determined. The name of the physical quantity measured in this experiment is:
- The phenomenon of diffusion is quantitatively described by:
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