- •1. Basic properties and functions of biological membranes.
- •2. Transport of substance through membrane.
- •3. Methods of research of structure and functions of biological membranes: optical microscopy, electronic microscopy
- •4. Methods of research of structure and functions of biological membranes: method of diffraction of X-rays radiation, luminescent methods, nuclear magnetic resonance research
- •5. Potential of rest:
- •6. Potential of action.
- •7. Properties of liquids.
- •8. Superficial tension. Method of falling drops.
- •10. Sensors. Kinds of sensors.
- •11. Application of sensors.
- •9. The general scheme of transfer and registration of the information. Electrodes.
- •14. Kinds of X-rays.
- •16. Law of weakening of X-rays.
- •17. Methods of using of X-rays in medicine.
- •18. Structure of a nucleus, nuclear forces. Energy of connection of nucleons.
- •19. Radioactivity. Kinds of radioactive disintegrations.
- •20. The basic law of radioactive disintegration. A half-life period.
- •21. Ionizing radioactive radiation and its biological action.
- •22. The absorbed and exposition doze. Power of a doze.Relative biological efficiency.
- •23. Heart. Biophysical property of heart.
- •24. Rhythm of heart. Parameters of cardiac activity.Heart tones.
- •25. Electric activity of cells of a myocardium.
- •26. The electrocardiogram. Main assignments of ecg.
- •27. Basic peaks of ecg.
- •28. Imposing of electrodes at ecg. Main assignments.
- •30. Basic rhythms of eeg.
- •31. Technique of record of electroencephalogram.
- •32. Methods of research of electroencephalograms. Magnetoencephalography.
- •33. Luminescence and its kinds.
- •34. Stimulated radiation. Laser.
- •35. Mechanisms of action of laser radiation on biological tissues.
- •36. Aplication of laser radiation in medicine. (lilr, hilr)
- •38. Dispersion of light.
- •40. Law of Buger-Lambert-Ber. Optical density and transparency of substance.
- •41. Method of determination of substance concentration. Method of the caliber graph, method of comparison.
- •42. Polarization of light by bio-systems. Light natural and polarized.
- •43. Phenomenon of double refraction. Dichroism.
- •44. Research of microstructures in polarizing light.
- •45. Rotation of a plane of fluctuations of polarized light.
- •46) Special methods of light microscopy. Method of a dark field.Method of a light field.
- •47) Method of phase contrast. Polarizing microscopy.
- •48) The method interference contrast. Method of research in a view of a luminescence.
- •49) Device of a microscope. Characteristics of microscope.
- •50) Kinds of muscles and its properties.
- •51) Contractive apparatus of the muscles.
- •52) Basic provisions of model of sliding strings.
- •53) Biomechanics of a muscle.
- •54) Electromechanical interface in muscles.
- •55) Stages of a breath. Gas exchange in lungs.
- •56) Surfactant, its importance.
- •57) Biomechanics of external breath.
- •58) Ventilation of lungs. Act of inhalation, act of exhalation.
- •59) Elastic draft of lungs.
- •60) Pulmonary resistance. Extensibility.Minute volume of breath.
- •61) Bernoulli’s equation. Static and dynamics pressure.
- •62) Viscosity of liquid. Laminar and turbulent fluid flow.
- •63) Current of a liquid on a horizontal pipe. Puazal’s law.
- •64) Definition of speed of blood-groove.
- •65) Physical bases of rheography.
- •66) Hemodynamics. Linear and volumetric speed of blood-groove.
- •67) Physical model of vascular system.
- •68) Measurement of pressure of blood.
- •69) Systolic, diastolic, pulse pressures. Pulse wave.
- •70) Work of heart.
- •71) Systolic and minute volume of a blood-groove.
- •72) Biophysical features of an aorta. Arterial and venous pulse.
- •73) Introscopy, its kinds.
- •74) Computer tomograph.
- •75) Magnetic-resonant tomography.
- •76) Ultrasonic (Ultrasonic diagnostics).
- •77) Influence of electromagnetic fields. Diathermy, darsonvalism, inductothermy, uhf-therapy.
- •78) Physiotherapy. Ultrasonic therapy, microwave therapy.
- •79) Amplipulse therapy, microcurrent therapy, magnetotherapy.
- •80) Mobility of ions. Electrophoresis its kinds.
- •81) Medicinal electrophoresis.
- •82) Galvanizing.
- •83) Electrosecurity.
- •84) Primary stages of photobiological processes.
- •85) Photochemical reactions.
- •86) Chemiluminescence and its diagnostic importance.
- •87) Migration of energy.
- •88) Action of ultra-violet radiation on proteins and nucleonic acids.
- •89) Modelling. The basic stages of modeling.
- •90) Modelling. Classification of models.
23. Heart. Biophysical property of heart.
The heart is located in the chest between the lungs behind the sternum and above the diaphragm. It is surrounded by the pericardium. Its size is about that of a fist, and its weight is about 250-300 g. Its center is located about 1.5 cm to the left of the midsagittal plane. Located above the heart are the great vessels: the superior and inferior vena cava, the pulmonary artery and vein, as well as the aorta. The aortic arch lies behind the heart. The esophagus and the spine lie further behind the heart.
In the heart muscle cell, or myocyte, electric activation takes place by means of the same mechanism as in the nerve cell - that is, from the inflow of sodium ions across the cell membrane. The amplitude of the action potential is also similar, being about 100 mV for both nerve and muscle. The duration of the cardiac muscle impulse is, however, two orders of magnitude longer than that in either nerve cell or skeletal muscle. A plateau phase follows cardiac depolarization, and thereafter repolarization takes place. As in the nerve cell, repolarization is a consequence of the outflow of potassium ions. The duration of the action impulse is about 300 ms.
Associated with the electric activation of cardiac muscle cell is its mechanical contraction, which occurs a little later.
Located in the right atrium at the superior vena cava is the sinus node (sinoatrial or SA node) which consists of specialized muscle cells. The sinoatrial node in humans is in the shape of a crescent and is about 15 mm long and 5 mm wide. The SA nodal cells are self-excitatory, pacemaker cells. They generate an action potential at the rate of about 70 per minute.
The atrioventricular node (AV node) is located at the boundary between the atria and ventricles; it has an intrinsic frequency of about 50 pulses/min.
The cardiac muscle possesses the next properties: excitability, ability to spend excitation and contractility.
Conductivity. Waves of excitation are spent on fibers of a cardiac muscle and a so-called special tissue of heart with unequal speed.
Contractility: Physiological features of a cardiac muscle is extended refractory period and automatism.
24. Rhythm of heart. Parameters of cardiac activity.Heart tones.
Rhythm of heart is the quantity of reductions in 1 minute, depends mainly on a functional condition of wandering and sympathetic nerves. At excitation of sympathetic nerves frequency of cardiac reductions increases, this is called atachycardia. Frequency of cardiac reductions decreases at excitation of wandering nerves,is is called a bradycardia.
Parameters of cardiac activity. Parameters of work of heart are systolic and minute volume of heart. Systolic or shock volume is the quantity of blood, which heart throws out in corresponding vessels at each reduction. The minute volume of heart is a quantity of blood, which heart throws out in a pulmonary trunk and an aorta for 1 minutes.
Cardiac tones are the sound phenomena arising in working heart. It is possible to distinguish two tones: I-systolic and II - diastolic.Systolic tone. During a systole ventricles atrioventricular valves are closed, and fluctuations of their shutters and attached to them tendinous strings cause I tone. On sound features I tone is lingering and low. Diastolic tone arises in the beginning diastole of ventricle during protodiastolic phase, when there is a closing of semilunar valves. II tone is short and high.