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Leif Nunneley
Physiology weeks 1-6
| Question | Answer |
|---|---|
| The body naturally changes some set points to different values at different times of the day. These daily cycles are called | Circadian Cycles |
| To accomplish self-regulation, a highly complex and integrated communication control system or network is required. This type of network is called a(n) | Feedback loop |
| Local control or _____, intrinsic mechanisms often make use of chemical signals. | Autoregulation |
| What are the basic components of every feedback control loop? | Sensor mechanism; Integrating Center; Effector; Feedback |
| The impact of effector activity on sensors may be positive or negative. Therefore, homeostatic control mechanisms are categorized as | Organs that are directly influenced by physiological variables or mechanisms. |
| The body’s thermostat is located in the: | Hypothalamus |
| Smooth muscles that produce goose pimples when they contract are the _____ muscles. | Arrector Pili |
| Which skin layer contains closely packed, clear cells that contain a gel-like substance called eleidin? | Stratum Lucidum |
| Which cells of the skin are filled with a tough, fibrous protein and account for most of the epidermal cells of the skin? | Keratinocytes |
| Which cells of the skin act as a type of antigen-presenting cell in the skin? | Dendritic cells |
| In which skin layer does the process of keratinization begin? | Stratum spinosum |
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Leifadam
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