CTD 446 Lecture Notes - Lecture 6: Subcutaneous Tissue, Aboriginal Australians, Vasodilation

• School: University of Alabama
• Department: Clothing, Textiles and Interior Design
• Course: CTD 446
• Professor: Dr.Thompson

Document Summary

Adapting to environment: long term over time, genetic, result of natural selection, short term short term adaptations, change to indoor vs outdoor environment, cultural clothing, shelter, modes of transportation, optimal adaptation physiological and cultural, also must accounts for personal satisfaction and modesty. Body volume to skin surface area: physiological adaptation to environment. Short term applications: habituation short term adjustments to temporary environmental stimulus, acclimation short term adjustment over longer period of time; new time zone, tanning in response to sunlight, increased respiratory/heart rate for higher altitudes, acclimatization long term physiological adaptation. Habituations: mammals traits, warm blooded allows us to maintain internal body temperature, sweat, shiver, expand/contract blood vessels, dress for extreme conditions. Heat: 1. 6 million sweat glands per human body, salt concentration changes, vasodilatation capillaries near skin surface dilate to facilitate delivery of heat to surface of skin (flush) Acclimatization: cold increase in metabolic rate = more energy in the form of heat = increase in nutrients.