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Physiology
Physiology weeks 1-7
| Question | Answer |
|---|---|
| Define Homeostasis | the ability of an organism to maintain a stable internal environment, like body temperature and blood sugar, despite changes in its external environment |
| List the four major groups of organic substances in the body | carbohydrates, lipids, proteins, and nucleic acids |
| Discuss the four distinct phases of mitosis | Prophase, Metaphase, Anaphase, and Telophase |
| List the four major types of tissue in the body | Epithelial, connective, muscle and nervous tissue |
| Interpret the five homeostatic functions of bones. | support and protection of the body's framework and organs, movement by acting as levers for muscles, hematopoiesis in the bone marrow, and mineral storage |
| Understand the clinical significance of the cribriform plate of the ethmoid bone | The role of olfactory nerve transmission and its fragility, which makes it vulnerable to injury during head trauma |
| Describe the function of bone marrow. | Production and storage of blood cells, Hematopoiesis, Fat Storage, Bone Formation and Repair, Immune Function, Regulation of Blood Cell Production |
| Define the term articulation | The site of close approximation of two or more bones; a joint |
| List the types of fibrous joints and cartilaginous joints | Fibrous joints include sutures, syndesmoses, and gomphoses Cartilaginous joints include synchondroses and symphyses |
| Discuss the three characteristics of skeletal muscle cells that allow them to function as they do | excitability: the ability to respond to a stimulus contractility: the ability to shorten and generate force extensibility/elasticity: the ability to be stretched and return to its original length |
| Define membrane potential | the voltage difference across a cell's plasma membrane, created by the unequal distribution of ions (charged particles) inside and outside the cell |
| Discuss disorders of nerve signaling | Some disorders of nerve signaling are Peripheral Neuropathy, Neuromuscular Junction Disorders, Motor Neuron Diseases, Epilepsy |