Bio 251 wsu - Study guides, Class notes & Summaries

Physiology vs Pathology Physiology :Science of the normal function of living things Pathology:Study of the abnormal function of living things levels of organization in the body 1.Cells 2.Tissues 3.Organs 4. Organ systems cells Cells Independently Carry Out All Life Processes differentiation process by which cells become specialized to perform specific functions

What are the four levels of organization in the body? Cells, Tissues, Organs, Organ Systems What are the three major functions of cells? Cells independently carry out all life processes. - Perform chemical reactions that use oxygen and nutrients to produce energy - Produce CO2, wastes - Synthesize Complex Molecules What are the four common characteristics of cells? - Sensitive to internal environment - Communicate with other cells - Cell growth - Cell division; most cells

Which of the following is part of the autonomic nervous system? parasympathetic and sympathetic The part of the brain that is the critical link between the nervous and endocrine systems is... The hypothalamus The cerebellum is involved in coordination of voluntary muscle activity Which of the following is most involved in generating emotions? Limbic System Tight junctions between capillary endothelial cells in the central nervous system create the bloodbrain barrier, thereby restricti...

Which of the following statements about homeostasis is FALSE? a.) Homeostasis is the maintenance of the internal environment b.) The organ systems work together to maintain homeostasis c.) Illness can result if homeostasis is disrupted d.) The primary mechanism to maintain homeostasis is positive feedback e.) The extracellular fluid is maintained in a state compatib

Organs of the body are defined as - Answer- a combination of two or more tissues that make up a structure which performs a specific function What contains most of the water found in the human body? - Answer- intracellular fluid What type of ductless gland secretes hormones into the bloodstream? - Answer- endocrine smallest unit of life - Answer- cells Which tissue conducts signals primarily via electrical impulses? - Answer- nervous tissue Which ion has a greater concentration in...