Your car breaks down along the highway on a cold winter afternoon. As you wait for help to arrive, the temperature drops significantly inside the car
Describe two involuntary adjustments an adult body will make in order to maintain core body temperature.
What will be an ideal response
1. Constriction of cutaneous blood vessels: Sympathetic fibers cause vasoconstriction of the blood vessels in skin in order to reduce heat otherwise lost through radiation from the skin. 2. Shivering: Brain centers controlling muscle tone are activated which eventually cause heat generation from the involuntary contraction of skeletal muscles.
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During the peak of the action potential which ion has the greatest permeability?
a. sodium. b. potassium. c. calcium. d. chloride. e. protein.
Gastric secretion does not begin until the arrival of food in the stomach
Indicate whether the statement is true or false
The three leading causes of death in the United States are
A. heart disease, cancer, and stroke. B. diabetes, heart disease, and cancer. C. COPD, diabetes, and Alzheimer disease. D. infection, kidney disease, and influenza.
Write the correct spelling for each of the following. humatoepoetic
What will be an ideal response?