requirements for human life Flashcards
3
requirements for life
oxygen, nutrients, temp (95-105F), air pressure (0.47-30)
homeostasis
all body systems work together to maintain a stable internal environment
continual adaption
dynamic equilibrium
auto response in a cell, tissue, to maintain homeostasis
auto regulation
responses controlled by nervous or endocrine system to maintain homeostasis
extrinsic regulation
mechanism that receives stimulus
receptors
processes the signal and sends instruction
control center
carries out instructions
effector
Homeostatic Regulatory Mechanism
limits fluctuation of inside conditions
what is negative feedback
the effector does negative work to the stimulus bringing the body to homeostasis (good)
what is positive feedback
the stimulus amplifies changed conditions (farther from homeostasis) bad
which system is involved with heat loss for body temp to keep homeostasis
integumentary (skin, hair, nails)
which system is in charge of heat prod. for homeostasis
muscular system
which system is in charge of coord of blood flow, heat prod, and heat loss
nervous system
