Exam 15: Fluid and Acidbase Balance

Which of these actions occurs when vasodilation of the blood vessels in the skin occurs?

Which of these is NOT a means of increasing or conserving heat production?

Temperature-regulating mechanisms are NOT 100 percent effective.

Which of the following does NOT happen when a negative energy balance exists?

Among the several kinds of biologically important molecules, ____________________ store the most energy per gram.

Which of these statements correctly describes vasoconstriction of the blood vessels to the skin?

Alcohol consumption causes peripheral vasoconstriction. Why is drinking wine in a hot tub not advised?

Which of these actions is the major means of decreasing heat loss in response to a cold environmental temperature?

A disorder characterized by a pathological fear of gaining weight and a distorted body image is ____________________.

Sustained exercise is the most common cause of hyperthermia.

The ____________________ is the energy expenditure (i.e., rate of heat production) per unit of time.

Which of these cells can release an endogenous pyrogen?

In addition to temperature control, blood flowing to the skin supplies a source of ____________________.

Which of the following events does NOT characterize heat exhaustion?

Fat people tend to eat more on a daily basis than thin people.

Match the items labelled a. through e. with their descriptions. a.energy equivalent of oxygen b.external work c.calorie d.basal metabolic rate e.internal work -minimal waking rate of internal energy expenditure

____________________ work constitutes all forms of biological energy expenditure that do not accomplish mechanical work outside the body.

An animal can be driven to overeat by either selective stimulation of the appetite centres or destruction of the satiety centres.

Internal energy expenditure is the energy utilized by the skeletal muscles when external objects are moved.

Match the heat exchange terms labelled a. through d. with their descriptions. a.convection b.evaporation c.radiation d.conduction -emission of heat energy from the surface of a warm body in the form of electromagnetic waves