HUMAN PHYSIOLOGY
None
Learning objectives of the course:
The first part of the course aims to introduce the student to the general basis of the mechanisms underlying the nervous system functions and the afferent and efferent systems, by which we interact with the surrounding environment. In the second part of the course the student learn topics about system physiology, concerning how an organ or an apparatus of the human body works.
Programme of the course:
General Introduction:
basics of Physics and Chemistry (mass, force, acceleration, speed, work, concentration, density, osmolarity, osmotic pressure); compartments and body composition of body fluids (blood, plasma, interstitial fluid).
Cellular neurophysiology:
cell membrane, ion channels, transporters, flux; the resting potential of excitable cells, the action potential, propagation of the action potential; synapses.
Muscle (sarcomere, contraction cycle, diagrams, force-length and force-velocity) and motor descending pathways
Sensory systems:
transduction of the stimulus and psychophysical laws; tact and proprioception, dermatomes, afferent pathways; vision (physiological optics, retina, visual cortex, color vision); hearing; vestibular system; nociception; taste and smell.
Cardiovascular System:
hematocrit, hemostasis and coagulation; heart electrical/mechanical activity, heart work and cardiac output; blood circle (characteristics of the vessels, blood velocity, vessel cross-section, systemic pressures); mechanical, hydrodynamic and Fick’s definition of cardiac output; lymphatic system.
Respiratory System:
composition of air; static lung volumes, respiratory mechanics, role of surface tension, gas exchange, blood transport of O2 and CO2
Renal System – pH:
kidney; buffer systems, bicarbonate buffer, Henderson-Hasselbalch’s Law, compensation of acidosis and alkalosis
Digestive system:
motility and its regulation; secretions and their regulation; digestion and absorption of sugars, lipids and proteins
Bibliography:
AA.VV. Compendio di fisiologia umana, coordinato da M. Midrio, ed. Piccin 2012
AA.VV. Fisiologia dell’Uomo a cura di G. Alloatti, ed. Edi-Ermes
Matthew N. Levy, Bruce M. Koeppen, Bruce A. Stanton, Principi di fisiologia di Berne & Levy, ed. Elsevier 2007