5 Written questions
5 Matching questions
- Total Blood Volume
- Robert Hooke
- Middle Ages
- Heat Stroke
- a Monitors changes in a controlled condition, a desired value or set point, by sensors through an afferent pathway.
- b Dominated by theology; Saint Augustine believed that all natural phenomena had supernatural causes; Dark Ages.
- c Prolonged heat exposure with high humidity. Body gains heat by radiation and convection while evaporative cooling is retarded. Can lead to convulsions, coma, and death.
- d Built the first compound microscope; coined "cell"; used microscope to study how insect feed adhered to wet slippery surfaces.
- e ~ 5.1 liters in adults
5 Multiple choice questions
- Cytoplasm (in cell outside of nucleus); Nucleoplasm (in nucleus).
- Published a textbook "The Canon of Medicine", leading authority for 600 years in Europe.
- Cold temperature → cold receptor...sensory fibers → primary motor center → bilateral tracts down brain stem → lateral column of spinal cord → anterior motor neuron → skeletal muscles → alternating contraction in muscles (~4 fold increase in heat production)
- Crisis of fever occurring at the end of febrile condition. Patient has 105 °F temperature, hypothalamus trying to maintain 98.6 °F and is still hot, leads to intense sweating and vasodilatation causing the skin to be hot.
- Joint friction, blood flow, other movements generate some energy.
5 True/False questions
Thermoregulation → 22% of heat loss. Sweat glands and exhalation provide liquid. Water off skin and out of lungs occurs at a rate of 450-600 mL/day = 12-16 kcal/hour of heat.
Neuroglia → 60% found in the brain, 1 trillion cells, 100 billion in brain, communicate via action potentials, generate action and electrical potentials.
Cell Volume → (Intracellular fluid component) ~1.6 liters in adults
Efferent Neurons → Motor neurons that are fibers from the central nervous system to effectors like muscles.
Positive Feedback → A rapid self-amplifying cycle; a physiological change leads to greater changes in the same direction; the response ENHANCES the original stimulus; unstable, less frequent, and may be destructive.