Human Physiology Exam #1 Graded A+

Human Physiology Exam #1 Graded A+ Physiology is the study of ... - answerthe normal functioning of a living organism and it's component parts. Greek for "relationship to nature" and studies the functions homeostasis - answerbalance/euilibrium of an internal enviornment even when the external environment is out of balance Pathology - answeroccurs when normal function is disrupted and a disease state or condidtion forces the internal environment out of balance basic cell composition - answerH2O, electrolytes, protein, lipids, and carbohydrates subatomic particles - answerelectrons, protons, neutrons Atom - answercombination of subatomic particles molecules - answera binding together of multiple atoms Isotope - answerthe number of protons is consistent, but the number of neutrons may vary Elements - answerThe simplest substances; they cannot be decomposed or resolved by chemical change into simpler substances. they are the basic substances out of which all matter is composed Major Elements of the human body (99.9%) : - answeroxygen, hydrogen, calcium, potassium, chlorine, magnesium, carbon, nitrogen, phosphorus, sulfur and sodium Trace elements (.1%): - answerCobalt, fluorine, Iron, zinc, copper, iodine, manganese Ion - answerWhen an atom gains or loses one or more electrons and it acquires an electrical charge. If it gains an electron (a negative charge) it is called an anion. If it loses and electron ( a positive charge) it is called a cation