Homeostasis
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (4 张)
ectotherm
reptiles and fish cant control own body temp therefore rely on surroundings&environment change their behaviour to control their body temp
endotherm
mammals and birds can control own body temperature rely on metabolic activity to control body temp and their behaviour
mechanisms used by mammals to INCREASE body temp (4)
shivering (muscles contract in spasms) less sweat hairs stand up (erector pili muscles contract) vasoconstriction (arterioles near skin surface constrict to reduce heat loss as less blood flows through capillaries)
mechanisms used by mammals to REDUCE body temp (3)
sweating hair lies flat to trap air and provide insulation vasodilation (arterioles near skin surface dilate so more blood flows through capillaries and heat is lost through radiation)