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Physiology
Week 1
| Question | Answer |
|---|---|
| Homeostasis can best be described as: | a constant state maintained by living and nonliving organisms. |
| If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions? | Uterine contractions would initially be weak and then gain strength after the release of the hormone. |
| Which of the following is not one of the basic components in a feedback control loop? | Integrating center |
| Epidemiology is the study of the _____ of diseases in human populations. | distribution |
| Of the pathogenic organisms, which of the following are the most complex? | Viruses |
| Intrinsic control: | operates at the system or organism level. |
| Negative-feedback control systems: | oppose a change. |
| The term that literally means self-immunity is: | autoimmunity. |
| Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and sometimes by a lipoprotein envelope are called: | viruses. |
| The contraction of the uterus during the birth of a baby is an example of _____ feedback. | Positive |
| The normal reading or range of normal is called the: | Set Point |
| Which of the following is a protein substance with no DNA or RNA and is thought to be the cause of mad cow disease? | Prion |
| Positive-feedback control systems: | accelerate a change. |
| Of the 11 major body systems, which is the least involved in maintaining homeostasis? | Reproductive |