PHYSIOLOGY
cod. 05319

Academic year 2011/12
2° year of course - First semester
Professor
Academic discipline
Fisiologia (BIO/09)
Field
Morfologia umana, funzioni biologiche integrate degli organi ed apparati umani
Type of training activity
Basic
72 hours
of face-to-face activities
9 credits
hub:
course unit
in - - -

Learning objectives

-The knowledge of the mechanisms by which the human organism obtains and maintains the homeostasis at level of cell and tissue, the mechanisms of transport and communication and the basal metabolism.
-The knowledge of the functional mechanisms of the human body organs (and in particular of the mouth), the knowledge of their dynamic integration in apparatuses and the general mechanisms of functional control.

Prerequisites

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Course unit content

General physiology. Mechanisms of passive permeability. Selective permeability. Simple diffusion. Facilitated diffusion. Active transport. Osmosis. Filtration. Electrochemical gradient. Nerst equation. Properties of cell channels. Action potential. Properties and mechanisms of gating of cell channels. Voltage-gated channels. Slow potential. Propagation of the slow potentials and of the action potentials.
Basic Physiology of the Nervous System. Functional properties of nerve fibers. Basic anatomy and functional properties of skeletal and smooth muscles. Synaptic transmission. Neurotransmitters. Membrane receptors.
Physiology of the nervous system. Sensory organs. Energy transduction. The generator potential and the receptor potential. Cutaneous receptors and in particular mouth receptors. Functional anatomy of the somatosensory systems and in particular the mouth somatosensory system. Pain and the control mechanisms of pain especially of the mouth. The auditory system, the vestibular system and the taste system.The brain stem. Muscle spindles. Reflexes. Flexion and stretch reflexes. Reflexes of the mouth. Postural reflexes. The thalamus. Organization of the cerebral cortex. Somatosensory cortices. The parietal lobe. Posture and decerebrate rigidity. The cerebellum. The basal ganglia. Cerebellum and basal ganglia disorders. The motor cortex. The pyramidal system. Organization of premotor cortex.
Physiology of the autonomic nervous system and homeostasis. Functional anatomy of the autonomic nervous system: sympathetic, and parasympathetic systems. Functional anatomy of hypothalamus. Homeostasis. Body temperature and its regulation. Cold-blooded and homeothermic animals. Heat production and heat-loss mechanisms. Central mechanisms for temperature regulation. Hyperthermia and hypothermia.
Physiology of the gastrointestinal tract (GI). Motility of GI: chewing, swallowing, gastric and intestinal motility. Secretions of GI.
Cardiovascular apparatus. Physical principles of hemodynamics. Physical properties of blood. Miocardial properties: rhythm, conduction, excitability, contraction. Heart electrophysiology. Ionic theories of resting and action potentials. Heart mechanics and the cardiac cycle. Cardiac output. Intrinsic and extrinsic regulation of heart activity. The vascular system. Passive mechanical properties. Vascular smooth muscles. Nervous and endocrine regulation of blood vessels. Blood pressure; systolic, diastolic, mean and pulsatory.
Respiratory Apparatus. Alveolar and pulmunary ventilation. Lung volumes and capacities. Anatomic and functional dead space. Mechanics of breathing. Intra-pulmunary and intra-pleural pressures. Compliance. Pressure-volume curves. Airway resistance. Work of breathing. Inspirated air, alveolar air, and expirated air. Blood-tissue gas exchange in the lung: relationships between ventilation and alveolar pressures of gases. Distribution of ventilation. Gas exchange between alveoli and capillaries. Blood transport of oxygen and carbon dioxide. Pulmunary circulation. Ventilation-perfusion relationships. Respiratory centers: Genesis of the rhythm of respiration. Ventilation responses to variation in alveolar pressures of oxygen and carbon dioxide. Chemical and central regulation of respiration. Hypoxia.

Full programme

General physiology. Mechanisms of passive permeability. Selective permeability. Simple diffusion. Facilitated diffusion. Active transport. Osmosis. Filtration. Electrochemical gradient. Nerst equation. Properties of cell channels. Action potential. Properties and mechanisms of gating of cell channels. Voltage-gated channels. Slow potential. Propagation of the slow potentials and of the action potentials.

Basic Physiology of the Nervous System. Functional properties of nerve fibers. Basic anatomy and functional properties of skeletal and smooth muscles. Synaptic transmission. Neurotransmitters. Membrane receptors.

Physiology of the nervous system. Sensory organs. Energy transduction. The generator potential and the receptor potential. Cutaneous receptors and in particular mouth receptors. Functional anatomy of the somatosensory systems and in particular the mouth somatosensory system. Examination of somatic sensation. Pain and the control mechanisms of pain especially of the mouth. The thalamus. Organization of cerebral cortex. Somatosensory cortices. The parietal lobe. The brain stem. The brain stem reflexes. Posture and decerebrate rigidity. The auditory system, the vestibular system and the taste. Muscle spindles Reflexes. Flexion and stretch reflexes.. Reflexes of the mouth. Postural reflexes. The cerebellum. The basal ganglia. Cerebellum and basal ganglia disorders. The motor cortex. The pyramidal system. Organization of premotor cortex.

Physiology of the autonomic nervous system and homeostasis. Functional anatomy of the autonomic nervous system: sympathetic, parasympathetic and enteric systems. Functional anatomy of hypothalamus. Homeostasis. Body temperature and its regulation. Cold-blooded and homeothermic animals. Heat production and heat-loss mechanisms. Central mechanisms for temperature regulation. Hyperthermia and hypothermia.

Physiology of the gastrointestinal tract (GI). Motility of GI: chewing, swallowing, gastric and intestinal motility. Secretions of GI.

Cardiovascular apparatus. Physical principles of hemodynamics. Physical properties of blood. Miocardial properties: rhythm, conduction, excitability, contraction. Heart electrophysiology. Ionic theories of resting and action potentials. Heart mechanics and the cardiac cycle. Cardiac output. Intrinsic and extrinsic regulation of heart activity. The vascular system. Passive mechanical properties. Vascular smooth muscles. Nervous and endocrine regulation of blood vessels. Blood pressure; systolic, diastolic, mean and pulsatory.

Respiratory Apparatus. Alveolar and pulmunary ventilation. Lung volumes and capacities. Anatomic and functional dead space. Mechanics of breathing. Intra-pulmunary and intra-pleural pressures. Compliance. Pressure-volume curves. Airway resistance. Work of breathing. Inspirated air, alveolar air, and expirated air. Blood-tissue gas exchange in the lung: relationships between ventilation and alveolar pressures of gases. Distribution of ventilation. Gas exchange between alveoli and capillaries. Blood transport of oxygen and carbon dioxide. Pulmunary circulation. Ventilation-perfusion relationships. Respiratory centers: Genesis of the rhythm of respiration. Ventilation responses to variation in alveolar pressures of oxygen and carbon dioxide. Chemical and central regulation of respiration. Hypoxia.

Bibliography

Berne & Levy. Fondamenti di Fisiologia. Casa Editrice Ambrosiana

Teaching methods

Oral lessons

Assessment methods and criteria

Oral examen

Other information

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