General Introduction
- Introduction to human physiology and scope of physiology.
- Organization of the body-cells, tissues and organs.
- Organs and organ system
Course Name | Physiology I |
Course Code | AHS102 |
Program | B. Sc. Clinical Nutrition, Dietetics, and Food Science |
Semester | 1 |
Credits | 4 |
Campus | Faridabad |
Composition properties and functions of blood – Intro.
R.B.C:
Size, Shape, functions, count, physiological variations of RBC count.
Polycythemia, erythropoiesis. Haemoglobin function, concentration,
physiological variation and concentration & methods of determination
of haemoglobin. Life span & destruction.
1 hour
W.B.C:
Functions, production, life span count, differential count leukocytosis,
leucopenia , leukemia. 1 hour
Platelet:
Size, shape, count production, thrombocytopenic purpura, bleeding time and clotting time. 1 hour
Plasma Proteins:
Concentration, production, albumin, globulin, fibrinogen. Prothrombin & functions of plasma proteins 1 hour
Blood Grouping:
ABO & Rh grouping, Criteria of classification
Antigen and antibodies, Genetics and inheritance, percentage of distribution. Determination of blood groups. LAN Steiner’s Law & Significance of blood group 2 hours
Blood transfusion:
Indication, general qualities of a donor
Matching of donors blood with recipients blood
Universal donor and recipient concept. Blood grouping or typing, cross-matching.
Mismatched blood transfusion – Causes and complication.
Rh factor and Rh factor incompatibility
Transfusion and erthroblastosis and foetalis. 2 hours
Anemia:
Definition, classification, major causes
ESR and PCV:
Determination, definition, values
Variation factors affecting significance. 1 hours
Blood Volume:
Normal value, determination of blood volume and regulation of blood
volume. Body fluid, pH, normal values, variation and regulation
Hemostasis :
Vasoconstriction, platelet plug formation , Blood coagulation- definition, clotting factors
Mechanism of blood clotting-intrinsic and extrinsic factors
Intravascular blood clotting, disorders of clotting & anticoagulants.
Vitamin K Deficiency bleeding, purpura, hemophilia. 1 hour
Heart: physiological anatomy, nerve supply.
Properties of cardiac muscle, cardiac cycle: systole, diastole. Intra- ventricularpressure curves.
Heart sounds, normal heart sounds, areas of auscultation.
Blood pressure: definition, normal value, clinical measurement of blood pressurePhysiological variations, regulation of heart rate, cardiac shock, hypo- tension,hypertension.
Pulse: jugular, radial pulse, triple response.
Heart sounds: normal heart sounds, causes, characteristics and signifi- cance, heartrate.
Functions of cardiovascular system and blood circulation, Tissue
perfusion and microcirculation Cardiac Cycle – Various phases ,
Cardiac output: definition and measurement – Regulation and control ,(Fick’s Principle) regulation Heart rate and pulse, Stroke volume, Vascular distensibility and Functions of arterial and venous systems , Arterial pressure pulsations and its regulation, Venous return, Cardiac metabolism, Cardiac cycle with reference to the waveforms of pressure tracing
Heart as a pump, Physical characteristics of atrium, ventricles & valves, Mechanism of contraction. Organization of pacemaker & conduction system types of artificial pacemakers. Cardiac excitation
and contraction. Specialized conduction tissues, Sinus node, Inter nodal tracts, AV node, bundle of his, Bundle branches, Nodal electricity, and Nervous control of HR.
Cardio vascular regulatory mechanism
Local: Vasodilatation, Auto regulation(myogenic theory) Vasodilator metabolites. Kinins & vasoconstriction. Systemic: – Circulatory vasoconstrictors. Neural and hormonal regulatory
mechanism, Cardio inhibitory center. Vasomotor center Baro & chemoreceptors, Movements of fluids & dissolved solutes in the body
Control of stroke volume and cardiac out put
Specialization in individual circulation: Coronary circulation, Renal circulation
Cerebral circulation, Pulmonary circulation, Cutaneous circulation.
Coordinate cardiovascular responses-posture , Valsalva maneuver & exercise
Basics of ECG:
Definition
Electrical conduction, normal and abnormal ECG. Interpretation of normal and abnormal ECGs
Classification of muscle, structure & functionof skeletal muscle & smooth muscle, sarcomere contractile proteins, Membrane and action potentials, Contraction & excitation of skeletal muscle and smooth muscle.
Neuromuscular junction, transmission, neuromuscular junction, coupling, mechanism of muscle contraction, muscle tone, fatigue, rigormortis.
Demonstration:
Recording of blood pressure
Sphygmomanometer
Measuring pulse rate (normal & following exercises)
ECG description and drawing
Demonstration of abnormal ECGs
Auscultation of heart sounds and interpretation
Introduction to the respiratory system, physiological anatomy of respiratory system, muscles of respiration, pulmonary circulation, pulmonary capillary dynamics, and fluids in the pleural cavity
respiratory passage ways. Functions of tracheobronchial tree, lower airway & alveoli, respiratory membrane
Regulation of Respiration: Stages of respiration, mechanism of normal and rigorous respiration, Respiratory centre, Chemical control of respiration, peripheral chemoreceptor system for control of
respiration & role of oxygen in the respiratory activity. Regulation of respiration during exercise.
Physical principles of gaseous exchange:
Diffusion of oxygen and carbon dioxide through the respiratory membrane. Physics of gas diffusion and gas partial pressures, Composition of alveolar air & its relation to atmospheric air
Macrophages and surfactant, transportation of respiratory gases. Transportation of oxygen and carbon dioxide in blood and tissue fluids.
Pulmonary Volumes and capacities: Spirometry and spirogram
Role of Thorax in Respiration : Forces opposing and favoring expansion of lungs, intra pulmonary pleural pressureSurface tension, recoil tendency of the chest wall & principles of
elasticity. Effect of ventilation perfusion ratio on alveolar gas concentration Compliance & airway resistance, Shunting & dead space, Concept of physiologic shunt & shunt effect.
Alveolar Ventilation & dead space. The mucus blanket mucus & cilia, Lung – thorax relationship.
Applied Physiology of Respiration
Respiratory insufficiency- pathophysiology, diagnosis, oxygen therapy.
Hypoxia, Cyanosis, Asphyxia, Dyspnea and Respiratory organ failure
Artificial respiration & apnea
Demonstration
Spirometry & spirogram interpretation, stethoscope, monitoring oxygenation, physical examination
Auscultation of the chest for lung sounds Description of normal findings, monitoring of blood pressure, ECG, Saturation, blood gases.
Hormone: local and general hormones, properties of hormones,
mechanism of action of hormones-AMP, major endocrine glands of
body and their locations.
Pituitary: Situation master gland anterior and posterior Anterior pituitary hormones, functions of each one of them. Dwarfism, Acromegaly, Gigantism , regulation of secretion of each hormone
Posterior pituitary: ADH, and oxytocin scare (Chemistry) functions, regulation of secretions, diabetes insidious
Thyroid gland: Physiological location, hormone secreted, functions, regulation of secretion. Endocrine disorders
Adrenal gland: adrenal cortex-hormones secreted, glucocorticoids, mineralocorticoids, sex steroids, functions regulation of secretion ,Aldosterone
Adrenal Medulla: Functions of adrenaline and nor adrenaline, regulation of secretion
Pancreas: Hormones of pancreas, insulin, function and actions regulation of secretion, diabetes mellitus, regulation of secretion, regulation of blood glucose level, parathyroid gland
PTH function and actions, regulation of secretion hypo and hyper secretion of PTH, regulation of secretion
Calcitonin: function and action.
Practical: 36 hours
All the above systems
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