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A+P Test 1 Ch1
Intro to Human Body
Question | Answer |
---|---|
Homeostasis | The condition in which the body's internal environment remains relatively constant. |
Catabolism | Chemical reactions that break down complex organic compounds into simple ones.(release energy) |
Anabolism | Reactions (synthetic) that build up smaller molecules into larger ones. (require energy) |
Metabolism | Sum of all biochemical reactions that occur within an organism. |
Feedback System Components | Receptor, Control Center, Effector |
Fast acting system controlling homeostasis | Nervous System |
Slower acting system controlling homeostasis | Endocrine System |
Types of Feedback Systems | Positive Feedback System (supports change) and Negative Feedback System (reverses change) |
Homeostatic Imbalance causes ______ that can be either __________ or __________. | disease or sickness, local, systemic |
Levels of organization. | Chemical, cellular (smallest living unit), tissue (specific function), organ (specific shape and function), system, organismal. |
Types of human tissue. | Epithelial (forms the innermost and outermost surfaces of body structures,forms glands), nervous, muscular, connective (bind and support, extracellular). |
Anatomy | "the process of cutting"The study of the structure of the body and the relation of it parts to each other, esp as revealed by dissection. |
Physiology | Science that deals with the functions of an organism or its parts. |
4 Main body cavities | cranial, thoracic, abdominal, pelvic |
viscera, visceral (function) | pertaining to organs, pertaining to the organs or to the covering of an organ (reduce friction) |
Mediastinum | Region on the thoracic cavity between the pleurae of the lungs that extends from the sternum to the vertebral column (contains the heart) |
Retroperitoneal | External to the peritoneal lining of the abdominal cavity (contains kidneys, adrenal glands, and pancreas) |
Serous membrane | Lines the thoracic and abdominal cavities (parietal layer) and covers the organs (visceral layer). |
Parietal | Pertaining to or forming the outer wall of a body cavity. |
Regions of thoracic cavity (3). | Mediastinum, pericardial, pleural |
Abdominal cavity | peritoneal |