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TrevorThorsen
Physiology Stack 2
Question | Answer |
---|---|
Positive-feedback control systems: have no effect on the deviation from set point. accelerate a change. ignore a change. do not exist in human systems. | accelerate a change. |
Pathogenesis can be defined as: a specific disease. a group of diseases. the course of disease development. a subgroup of viruses. | the course of disease development. |
The term that literally means self-immunity is: autoimmunity. homoimmunity. passive immunity. active immunity. | autoimmunity. |
Of the pathogenic organisms, which of the following are the most complex? Viruses Tapeworms Bacteria Protozoa | Tapeworms |
Shivering to try to raise your body temperature back to normal would be an example of: the body trying to maintain homeostasis. a positive-feedback mechanism. a negative-feedback mechanism. both A and C. | both A and C. |
Which of the following is not one of the basic components in a feedback control loop? Effector mechanism Transmitter Sensor Integrating center | Transmitter |
Homeostasis can best be described as: a constant state maintained by living and nonliving organisms. a state of relative constancy. adaptation to the external environment. changes in body temperature. | a state of relative constancy. |
The body’s thermostat is located in the: heart. cerebellum. pituitary. hypothalamus. | hypothalamus. |
The type of lipoprotein associated with “bad” cholesterol and the production of atherosclerotic changes in blood vessels is: HDL. LDL. VHDL. none of the above. | LDL. |
Humans can synthesize 13 of 21 basic amino acids; the remaining 8, which must be included in the diet, are called: enzymes. essential amino acids. structural proteins. peptide bonds. | essential amino acids. |