Physiology
study of the function of living things
Cell
basic unit of structure and function in living things
Unicellular
having or consisting of a single cell
Multi-Cellular
consisting of many cells
Zygote
the fertilized egg
Nerve Cell
a cell that is specialized to conduct nerve impulses..ability to receive and transmit info.
Muscle Cell
generate mechanical forces
Connective Tissue Cell
cell specialized to form extracellular elements that connect, anchor, and support body structures
Epithelial Cell
Skin cell..line and cover things/ also secrete materials.
Tissue
group of similar cells that perform a particular function
Organ
a collection of tissues that carry out a specialized function of the body
Organ Systems
a group of organs that work together in performing vital body functions
Metabolism
how to utilize energy or transform it. you must acquire it first!
Anabolism
building up of things
Catabolism
Breaking things down
Nucleic Acids
DNA & RNA
Carbohydrates
the starches and sugars present in foods
Proteins
made up of amino acids..all living things make proteins
Lipids
fats and oils
Homeostasis
Maintenance of a relatively constant internal environment..everything our bodies do is to maintain this
Extra-Cellular Fluid
liquid containing proteins and electrolytes including the liquid in blood plasma(20%) and interstitial fluid(80%)
Intercellular Fluid
same as extracellular fluid
What do all living things have in common?
Organization(our bodies)..Metabolic activity(energy)..Reproduction grow and develop..Adaptability..Composition(DNA RNA)
What is the name for the high energy chemical that our bodies use for energy?
ATP(Adenosine Triphoshate)
Name a few things in our bodies that remain constant...
rate of breathing for oxygen levels...heart rate...temperature...water...waste(CO2)(feces)...hormones...glucose/all nutrients...electrolytes...PH...blood pressure
Vasodilation
blood vessels get bigger at surface and allows for the dissipation of heat(reason we look flush on skin)
Vasoconstriction
blood vessels constrict and redirects blood into body core to maintain heat
Paracrines
Local chemical message that acts on neighboring cells
Autocrines
Local chemical message that acts on the same cell that created them