The ____ system is the body's control center and communication network
a. muscular
b. digestive
c. nervous
d. cardiovascular
c
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The main function of the respiratory system, the exchange of oxygen and carbon dioxide, occurs where?
a. pharynx b. trachea c. bronchi d. alveoli
Sketch the graphs of plasma antibody concentration in a primary immune response and a secondary immune response. Explain the significance of the graphs.
What will be an ideal response?
Which of the following statements concerning control of food intake is incorrect?
a. there are a pair of feeding centers and a pair of satiety centers in the hypothalamus that play a major role in controlling food intake. b. stimulation of the feeding centers drives the individual to eat. c. stimulation of the satiety centers brings about the feeling of having had enough to eat. d. distention of the digestive tract constitutes the major input for regulating food intake. e. destruction of the satiety centers in lab animals leads to overeating and obesity.
While playing softball, Gina is struck in the superior medial portion of her left zygomatic bone by a wild pitch. Which of the following complaints would you expect her to have?
A) a broken jaw B) a black eye C) a headache at the back of the head D) a sore chest E) a sore back