negative feedback loop

decrease stimulus, implement minor changes to maintain homeostasis (ex. sweating)

positive feedback loop

amplify or increase the occurrence of events/stimulus to maintain homeostasis, doesn't happen often, major changes in the event of an emergency (ex. giving birth)

how the body makes adjustments when the outside environment changes

detect conditions within the body such as temperature

muscles or glands that respond to deviation from the set point

how feedback loops work

stimulus (cause problem) --> sensor (detect problem) --> control (decides how to fix problem) --> effector (fix problem)

help providers determine if a patient is out of homeostasis, indicates what body system is affected

requirements of human life

oxygen (required to make ATP/cell energy), nutrients (water, food, vitamins), temperature (narrow range but body can easily adapt to changes), atmospheric pressure (pressure necessary for breathing)

the process by which a cell becomes specialized to perform a specific function; happens by activating and deactivating different genes

all physical and chemical changes occuring in an organism, requires energy from glucose/fats

body support, gives body shape and function (ex. ribs, skull)

acts as protection from the environment (ex. nails, skin, hair)

transports nutrients, oxygen, and hormones to cells, gets rid of carbon dioxide from tissues/organs (ex. heart, lungs)

body movement, posture, produces heat and energy, protects internal organs (ex. heart, abs, glutes)

digests and breaks down food so the body can use it for energy, growth, and repair; gets rid of waste (stomach, intestines)

gives oxygen to the blood and removes carbon dioxide to keep the body alive (lungs, trachea)

receives sensory information, integrates it, and produces a motor response by sending signals throughout the body (nerves, brain)

control and coordinate the body's growth, metabolism, development, reproduction, and mood with hormones (brain, pancreas)

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Human Bio Unit 1

Term	Definition
homeostasis	tendency of the body to maintain a stable and balanced internal environment
set point	the value around which the range fluctuates
normal range	indicates where the body can function or what the optimal conditions are
negative feedback loop	decrease stimulus, implement minor changes to maintain homeostasis (ex. sweating)
positive feedback loop	amplify or increase the occurrence of events/stimulus to maintain homeostasis, doesn't happen often, major changes in the event of an emergency (ex. giving birth)
feedback loop	how the body makes adjustments when the outside environment changes
sensors/receptors	detect conditions within the body such as temperature
effectors	muscles or glands that respond to deviation from the set point
how feedback loops work	stimulus (cause problem) --> sensor (detect problem) --> control (decides how to fix problem) --> effector (fix problem)
vital sign	help providers determine if a patient is out of homeostasis, indicates what body system is affected
requirements of human life	oxygen (required to make ATP/cell energy), nutrients (water, food, vitamins), temperature (narrow range but body can easily adapt to changes), atmospheric pressure (pressure necessary for breathing)
differentiation	the process by which a cell becomes specialized to perform a specific function; happens by activating and deactivating different genes
metabolism	all physical and chemical changes occuring in an organism, requires energy from glucose/fats
ingredients in an IV bag	sodium and water
skeletal system	body support, gives body shape and function (ex. ribs, skull)
integumentary system	acts as protection from the environment (ex. nails, skin, hair)
circulatory system	transports nutrients, oxygen, and hormones to cells, gets rid of carbon dioxide from tissues/organs (ex. heart, lungs)
muscular system	body movement, posture, produces heat and energy, protects internal organs (ex. heart, abs, glutes)
digestive system	digests and breaks down food so the body can use it for energy, growth, and repair; gets rid of waste (stomach, intestines)
respiratory system	gives oxygen to the blood and removes carbon dioxide to keep the body alive (lungs, trachea)
nervous system	receives sensory information, integrates it, and produces a motor response by sending signals throughout the body (nerves, brain)
endocrine system	control and coordinate the body's growth, metabolism, development, reproduction, and mood with hormones (brain, pancreas)

Created by: ts2819

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