UWRF ANSC 360 - EXAM 1 Questions and Answers

physiology - definition - the study of the normal function of a living organism and its component parts anatomy - where the parts are situated physiology - how the parts interact general/structure - skeletal & muscular, integumentary (skin) internal/external exchange - reproductive, digestive, respiratory, and urinary/renal extend throughout - nervous, cardiovascular, immune system, and endocrine` homeostasis & control - definition - maintaining a relatively constant internal environment biological energy use - definition - processes need fuel (movement, repro, growth, etc.) structure/function relationships - definiton - structure dictates function (disease) communication/information flow - definition - transmission of important biological info. (DNA) homeostasis and control (osmolarity) - -cycle to maintain a relatively constant environment -causes/results of an imbalance -environmental (toxic chemicals, physical trauma, bacteria, virus) -illnesses (abnormal cell growth, cancer, tumors) -law of mass balance-inputs (lung, GI, skin, metabolic production) -outputs (lungs, GI tract, kidneys, skin, metabolic production, liver) law of mass balance - if the amount of a substance in the body is to remain constant, any gain must be offset by equal loss *mass balance = body load + input - output* biological energy use (synthesis) - -synthesis, breakdown, transport (plant = photosynthesis, animals = biomolecules aka FOOD) structure dictates function (enzymes) - -molecular interactions (enzymes, signal molecules, receptor proteins) -compartmentation -organelles -body cavities (cranial, thoracic (pleural sac and pericardial sac), abdominopelvic (peritoneum)) -hallow organs (bladder, GI tract, uterus, lungs, heart, etc.) -fluid cavities (intracellular, extracellular (intertitial and plasma))