5 Written questions
5 Matching questions
- Rate of Heat Loss
- Peripheral (Proteins)
- High Intracellular Ion Concentrations
- Survivable Ambient Temperature Range
- Hypothalamic Temperature Control (Hot)
- a * Vasodilatation of dermal blood vessels and increased blood flow to the skin (8 fold reduction in heat)
* Sweat (removes 10 times basal metabolic rate heat)
* Heat production inhibited
- b * Found absorbed or attached on the outside surface(s) of the bilayer
* Cell-surface antigens and hormone receptors
- c Depends on the speed of heat transfer from body core to skin to ambient environment.
- d Exposure to cold temperatures down to 55 °F or hot temperatures up to 130 °F. (Subject nude in dry air.)
- e K⁺, amino acids, Mg, P
5 Multiple choice questions
- Tissue that surrounds and supports neurons in the central nervous system; support, protect, and nourish the neurons.
- * Selective permeability
* Active transport: excretion (waste removal), or secretion (product)
* Communication (receptors)
* Motility, movement of fluids
- * Basal Metabolic Rate
* Shivering and non-shivering thermogenesis
* Metabolism due to hormonal activity
* Extra metabolism: stimulation of sympathetic nerves or cellular chemical activity
- Cytoplasm (in cell outside of nucleus); Nucleoplasm (in nucleus).
- Receptor; Control Center; Effector
5 True/False questions
Destructive Feedback Loop → Fever at 108°: metabolic rate increases → more heat generated → further rise in body temp (repeat); temperature around 113° is fatal (body's proteins denature).
Intracellular Fluid (ICF) → Fluid found within the cells.
Aldosterone (Sweating) → This kidney targeted hormone allows an acclimatized person to sweat 2-3 L/hr while minimizing the loss of salt.
Chills → Pyrogens increase hypothalamic thermostat set point suddenly initiating a cascade of events: dermal vasoconstriction, shivering, piloerection, hot sensation due to chemical thermogenesis.
Physiology → Greek word phusiologia - knowledge of nature; study of chemical and physical processes that accounts for life functions; concerned with explaining the functioning of whole organisms.