Define humoral immunity
What will be an ideal response?
The production of antibodies in response to an antigen.
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________ does not occur upon exposure to cold
a. Skin vasoconstriction b. Decreased muscle tone c. Nonshivering thermogenesis d. Behavioral adaptations e. Stimulation of thermoreceptors
A sudden increase in pressure within the carotid sinus leads to
a. increased sympathetic nerve activity. b. increased sympathetic nerve activity and decreased parasympathetic nerve activity. c. decreased sympathetic nerve activity and increased parasympathetic nerve activity. d. decreased sympathetic nerve activity. e. none of these answers.
The dorsal cavity can be subdivided into which two cavities?
A. Cranial and vertebral cavities B. Pleural and pericardial cavities C. Thoracic and abdominal pelvic cavities D. Abdominal and pelvic cavities
An obstruction in the inferior vena cava would hamper the return of blood from which of the following areas of the body?
A. Heart B. Head and neck C. Abdomen, pelvis, and lower limbs D. Lungs E. Upper extremities