Unit 9 - Anatomy and Physiology Flashcards
Qualities of Life
Irritability, Growth and Development, Reproduction, Movement, Self Regulating Metabolism, Adapt to the Environment
irritability
an organism’s ability to respond to external and internal stimuli
stimuli
anything that is different to an organism; external or internal. Examples; temperature, pressure, sound
growth and development
involves changes that occur mentally and physically
homeostasis
the external or internal environment changes, the organism tries to bring everything back to an optimal state.
anatomy
study of structure
physiology
study of function
pathology
study of disease and the disease process
histology
study of tissues
cytology
study of cells
levels of organization from smallest to largest
atomic, molecular, cellular, tissue, organ, organ system, organism
organ systems
collection of organs uniting for a common goal or function
integumentary system
Helps regulate the body’s temperature, protection, water volume control, eliminates some waste products, Vitamin D production, and sensation.
skeletal system
support and protection for the body, produces blood
muscular system
movement, postures, and heat protection
nervous system
regulates body activity
endocrine system
regulates body activity slower than the nervous system
cardiovascular system
transports oxygen, blood, and waste
lymphatic system
brings fluid back into the blood vessels, protection for the body
respiratory system
transport of gasses (oxygena nd carbon dioxide)
urinary system
regulates the composition of blood
digestive system
Break down and absorption of useful substances from food.
reproductive system
continuation of the species
positive feedback
each reaction from the organism is stronger than the last
