THERMAL HOMEOSTASIS

1. THERMAL HOMEOSTASIS HEAT PRODUCTION = HEAT LOSS Chemical heat reg. physical heat reg. • Homeotherms are very sensitive to thermal stimuli • Thermal regulaton takes precedence over metabolic processes • By influencing temp. reg. control in the hypothalamus > alterative effect

2. THERMOREGULATION “Set point” 37C/98.6F Actual value Control centre hypothalamus Effectors – Vasoconstriction/dilation, adrenal medulla, thyroid, skeletal muscles, Sweatglands, pilomotor Receptors in skin & hypothalamus BODY TEMP DISTURBANCE IN STEADY STATE

3. TEMPERATURES • Cold <18C • Cool 19-22C • Tepid 23-31C (non-therapeutic) • Indifferent 32-35C (skin temp. – start with this for rising temp baths) • Warm 36-38C • Hot 39-42C • Very hot 43-46C

4. SHORT COLD APPLICATIONS • 1ary blood vessel contraction • 2ndary dilation both above via neurological vasomotor activity • Fall in blood temp. • Reduction in heart rate – can last 30 mins • 1ary sedation, 2ndary stim. of metabolism • Analgesia – esp. by rapid reduction of skin temp. • Reduces nerve conduction velocity • Reduces inflammation • Reduces oedema

5. Short/Long cold

6. HEAT & OVERHEATING • Increases body core temp. • Increases heart rate and cardiac output • Increases O2 demand • Increases metabolism • Reduces pain • Reduces muscle tension • Increases filtration, diffusion & phagocytosis

7. Short/Long Hot

8. Localised long hot by blitzguss

9. Lymphatic Constitution.

10. Predisposition to exudative processes, catarrh, rheumatism, disorders of the mucous membranes and skin. • Swollen glands indicate levels of toxic load. • Blood and bodily fluids can be thin. • Often states of dis-ease manifest and progress due to a stifled and congested lymphatic system.

11. Lymphatic types commonly DO NOT LIKE COLD WATER APPLICATIONS BUT NEED THEM! • Short cold increases blood and lymphatic circulation and metabolism, generating warmth to the extemities • Increases detox processes

12. Haematogenic Constitution

13. Predisposition towards blood disorders, digestive system problems and slow metabolism. • Common disorders include cold extremities, digestive tract imbalances, venous blood stagnations, anaemias, high blood lipids, lithic formation and auto intoxications

14. Blood and body fluids tend to be thick – often from nitrogenous and uric acid wastes. • Short hot applications thin blood, modestly improve blood circulation and metabolism. • Best administered by bath for hydrostatic pressure effect to encourage venous return and lymph flow.

16. Biliary Constitution

17. Predisposition towards gastrointestinal, liver, gall bladder and pancreatic problems. • Common symptoms include digestive tract problems, blood sugar fluctuations and increased lipid levels. • Blood and body fluids hold the middle ground.

18. Assess constitutional leanings between haematogenic and lymphatic types • Application of packs to strategic areas where indicated • Haysack • Cold sock • Castor oil with wet heat • Washings • Arm & leg baths