Presentation is loading. Please wait.

Presentation is loading. Please wait.

THERMOREGULATION IN DOGS & PATHOPHYSIOLOGY OF HYPERTHERMIA Lan Anh, Warunwati, Suwanee 26 Jun. 2013.

Similar presentations


Presentation on theme: "THERMOREGULATION IN DOGS & PATHOPHYSIOLOGY OF HYPERTHERMIA Lan Anh, Warunwati, Suwanee 26 Jun. 2013."— Presentation transcript:

1 THERMOREGULATION IN DOGS & PATHOPHYSIOLOGY OF HYPERTHERMIA Lan Anh, Warunwati, Suwanee 26 Jun. 2013

2 Hot house effect -Stationary car -Enclosed area sunlight same as put them in oven + heat on

3 alive within optimal range maintain normal core body Temp. cell function Multi. Body systems Respiratory Cardio vascular Endocrine Nervous Urinary Integumentary

4 1. Conduction

5 2. Convection

6 3. Radiation Natural process of body releasing heat into environment 4. Evaporation Most important if Environmental Temp. > 32 ° c

7 Dog bring hot core body T. surface

8 Inhalationthrough the nose Exhalationthrough the nose & mouth Increased rateFinally with the tongue

9 Brachycephalic dogs heat dissipation  by its anatomy

10 Heavy panting - much energy utilized - water loss Dog try to get out of a hot car - Evaporation effective ( caused by high Temp. high Humid. ) ( ; conduction, convection, radiation )

11 If animals has not been acclimated to heat,humid. Forced to high heat Hypovolemia, dehydrate Vasoconstriction, Tissue dispersion , Hypoxia etc. Thermoregulation ineffective Forced for long time Hemorrhagic diarrhea, Arrhythmias, Renal failure

12 dead cell disfunction Even as core body T. is returned to normal ** Vet. Should always be sought in case of prolonged heat exposure Whether or not there are obvious clinical signs

13 Exogenous 1.lack of acclimatizationneuro-hormone 2.poor ventilation4 heat loss eff. 3.high humidityevap. Eff. 4.Water deprivationblood volume vasodilation

14 Endogenous 1.Brachycephalicventilatory cap.  2.Obesity, fatheat dissipation 3.Cardiovascular diseasecardiac output 4.Neurologic./neuromuscularthermo-reg.  5.younger/older animalspoor accli. 6.Hair coat & colorthicker, dark 

15


Download ppt "THERMOREGULATION IN DOGS & PATHOPHYSIOLOGY OF HYPERTHERMIA Lan Anh, Warunwati, Suwanee 26 Jun. 2013."

Similar presentations


Ads by Google